Page 1
GE
Grid Solutions
850
Feeder Protection System
Feeder protection and control
Instruction manual
850 version: 1.6x
GE publication code: 1601-0298-A9 (GEK-119591H)
*1601-0298-A9*
Page 2
© 2016 GE Multilin Incorporated. All rights reserved.
GE Multilin 850 Feeder Protection System instruction manual for revision 1.6x.
850 Feeder Protection System, EnerVista, EnerVista Launchpad, and EnerVista 8 Series
Setup software are registered trademarks of GE Multilin Inc.
The contents of this manual are the property of GE Multilin Inc. This documentation is
furnished on license and may not be reproduced in whole or in part without the permission
of GE Multilin. The content of this manual is for informational use only and is subject to
change without notice.
Part number: 1601-0298-A9 (March 2016)
Note
May contain components with FCC ID: XF6-RS9110N1122
and IC ID: 8407A-RS9110N1122.
Page 3
Table of Contents
1.INTRODUCTION Overview .............................................................................................................................................. 1 - 1
Description of the 850 Feeder Protection System............................................................ 1 - 2
Security Overview............................................................................................................................ 1 - 5
850 Order Codes............................................................................................................................... 1 - 7
Specifications..................................................................................................................................... 1 - 9
Protection......................................................................................................................................................1 - 9
Control......................................................................................................................................................... 1 - 18
Monitoring.................................................................................................................................................. 1 - 19
Recording................................................................................................................................................... 1 - 21
User-Programmable Elements ........................................................................................................ 1 - 22
Metering...................................................................................................................................................... 1 - 23
Inputs ........................................................................................................................................................... 1 - 25
Outputs........................................................................................................................................................ 1 - 27
Power Supply............................................................................................................................................ 1 - 28
Communications .................................................................................................................................... 1 - 29
Testing & Certification.......................................................................................................................... 1 - 30
Physical ....................................................................................................................................................... 1 - 31
Environmental.......................................................................................................................................... 1 - 31
Cautions and Warnings ..............................................................................................................1 - 32
Safety words and definitions ............................................................................................................ 1 - 32
General Cautions and Warnings..................................................................................................... 1 - 32
Must-read Information................................................................................................................1 - 35
For Further Assistance.................................................................................................................1 - 36
2.INSTALLATION Mechanical Installation................................................................................................................. 2 - 1
Product Identification..............................................................................................................................2 - 1
Dimensions...................................................................................................................................................2 - 2
Mounting ....................................................................................................................................................... 2 - 2
Standard Panel Mount.............................................................................................................................2 - 3
Draw-out Unit Withdrawal and Insertion ...................................................................................... 2 - 4
Removable Power Supply......................................................................................................................2 - 5
Removable Magnetic Module .............................................................................................................. 2 - 7
Arc Flash Sensor ........................................................................................................................................2 - 8
Electrical Installation ...................................................................................................................... 2 - 8
Typical Wiring Diagram ..........................................................................................................................2 - 8
Terminal Identification ......................................................................................................................... 2 - 10
Wire Size......................................................................................................................................................2 - 14
Phase Sequence and Transformer Polarity ............................................................................... 2 - 15
Ground CT Inputs.................................................................................................................................... 2 - 15
Voltage Inputs.......................................................................................................................................... 2 - 17
Restricted Earth Fault Inputs ............................................................................................................ 2 - 17
Zero-Sequence CT Installation ......................................................................................................... 2 - 18
Control Power........................................................................................................................................... 2 - 19
Contact Inputs ......................................................................................................................................... 2 - 19
Output Relays........................................................................................................................................... 2 - 21
Serial Communications ....................................................................................................................... 2 - 23
IRIG-B ........................................................................................................................................................... 2 - 24
3.INTERFACES Front Control Panel Interface..................................................................................................... 3 - 2
850 Graphical Display Pages ............................................................................................................... 3 - 2
850 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL I
Page 4
Working with Graphical Display Pages........................................................................................... 3 - 4
Single Line Diagram................................................................................................................................. 3 - 7
LED Status Indicators.............................................................................................................................. 3 - 8
Home Screen Icons................................................................................................................................3 - 10
Relay Messages .......................................................................................................................................3 - 11
Target Messages.....................................................................................................................................3 - 11
Self-test Errors..........................................................................................................................................3 - 12
Out of Service............................................................................................................................................3 - 15
Flash Messages........................................................................................................................................3 - 15
Label Removal..........................................................................................................................................3 - 15
Software Interface ........................................................................................................................3 - 17
EnerVista 8 Series Setup Software..................................................................................................3 - 17
Hardware & Software Requirements ............................................................................................3 - 17
Installing the EnerVista 8 Series Setup Software.....................................................................3 - 17
Connecting EnerVista 8 Series Setup software to the Relay ..............................................3 - 20
Using the Quick Connect Feature...................................................................................................3 - 20
Configuring Ethernet Communications........................................................................................3 - 21
Connecting to the Relay ......................................................................................................................3 - 23
Working with Setpoints & Setpoints Files ....................................................................................3 - 24
Engaging a Device..................................................................................................................................3 - 24
Entering Setpoints ..................................................................................................................................3 - 24
File Support................................................................................................................................................3 - 25
Using Setpoints Files..............................................................................................................................3 - 26
Downloading & Saving Setpoints Files..........................................................................................3 - 26
Adding Setpoints Files to the Environment.................................................................................3 - 27
Creating a New Setpoints File...........................................................................................................3 - 28
Upgrading Setpoints Files to a New Revision............................................................................3 - 29
Printing Setpoints....................................................................................................................................3 - 29
Printing Values from a Connected Device...................................................................................3 - 30
Loading Setpoints from a File ...........................................................................................................3 - 31
Quick Setup................................................................................................................................................3 - 32
Upgrading Relay Firmware ................................................................................................................3 - 34
Loading New Relay Firmware...........................................................................................................3 - 35
Advanced EnerVista 8 Series Setup Software Features .......................................................3 - 38
FlexCurve Editor.......................................................................................................................................3 - 38
Transient Recorder (Waveform Capture).....................................................................................3 - 39
Protection Summary .............................................................................................................................3 - 42
Offline Settings File Conversion........................................................................................................3 - 44
Convert SR 750/760 Files ....................................................................................................................3 - 44
Conversion Summary Report............................................................................................................3 - 45
Results Window.......................................................................................................................................3 - 46
4.SETPOINTS Setpoints Main Menu ......................................................................................................................4 - 1
Setpoints Entry Methods........................................................................................................................ 4 - 2
Common Setpoints................................................................................................................................... 4 - 3
Logic Diagrams.......................................................................................................................................... 4 - 4
Setpoints Text Abbreviations............................................................................................................... 4 - 5
Device.....................................................................................................................................................4 - 6
Clock................................................................................................................................................................ 4 - 6
Real-time Clock.......................................................................................................................................... 4 - 6
PTP Configuration..................................................................................................................................... 4 - 7
Clock................................................................................................................................................................4 - 9
SNTP Protocol ...........................................................................................................................................4 - 10
Security........................................................................................................................................................4 - 11
Basic Security............................................................................................................................................4 - 13
CyberSentry...............................................................................................................................................4 - 16
Communications.....................................................................................................................................4 - 23
II 850 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL
Page 5
RS485............................................................................................................................................................4 - 23
WiFi................................................................................................................................................................4 - 23
USB ................................................................................................................................................................4 - 26
Ethernet Ports...........................................................................................................................................4 - 27
Modbus Protocol.....................................................................................................................................4 - 28
Routing.........................................................................................................................................................4 - 37
DNP Protocol.............................................................................................................................................4 - 40
DNP / IEC104 Point Lists ......................................................................................................................4 - 42
IEC 60870-5-104 .....................................................................................................................................4 - 46
IEC 60870-5-103 .....................................................................................................................................4 - 47
IEC 61850....................................................................................................................................................4 - 48
Transient Recorder ................................................................................................................................ 4 - 51
Data Logger .............................................................................................................................................. 4 - 54
Fault Reports ............................................................................................................................................ 4 - 57
Event Data ................................................................................................................................................. 4 - 60
Flex States.................................................................................................................................................. 4 - 61
Front Panel ................................................................................................................................................ 4 - 61
Display Properties...................................................................................................................................4 - 62
Default Screens........................................................................................................................................4 - 63
Programmable LEDs..............................................................................................................................4 - 63
Programmable Pushbuttons.............................................................................................................4 - 66
Resetting..................................................................................................................................................... 4 - 71
Installation................................................................................................................................................. 4 - 71
System.................................................................................................................................................4 - 72
Current Sensing....................................................................................................................................... 4 - 72
Voltage Sensing ...................................................................................................................................... 4 - 74
Power System .......................................................................................................................................... 4 - 76
Breakers...................................................................................................................................................... 4 - 76
FlexCurves ................................................................................................................................................. 4 - 80
Inputs...................................................................................................................................................4 - 88
Contact Inputs ......................................................................................................................................... 4 - 88
Virtual Inputs ............................................................................................................................................ 4 - 92
Analog Inputs ........................................................................................................................................... 4 - 94
Remote Inputs.......................................................................................................................................... 4 - 99
Outputs ............................................................................................................................................4 - 100
Output Relays.........................................................................................................................................4 - 100
Output Relay 1 (F1) Trip.....................................................................................................................4 - 102
Output Relay 2 (F4) programmed as Close..............................................................................4 - 104
Critical Failure Relay #8 ....................................................................................................................4 - 107
Virtual Outputs.......................................................................................................................................4 - 108
Analog Outputs .....................................................................................................................................4 - 109
Protection .......................................................................................................................................4 - 111
Current Elements..................................................................................................................................4 - 113
Inverse Time Overcurrent Curves.................................................................................................4 - 114
Percent of Load-To-Trip....................................................................................................................4 - 122
Phase Time Overcurrent Protection............................................................................................4 - 123
Phase Instantaneous Overcurrent Protection........................................................................4 - 127
Phase Directional Overcurrent Protection............................................................................... 4 - 130
Neutral Time Overcurrent Protection.........................................................................................4 - 134
Neutral Instantaneous Overcurrent Protection.....................................................................4 - 137
Neutral Directional Overcurrent Protection............................................................................4 - 140
Ground Time Overcurrent Protection.........................................................................................4 - 146
Ground Instantaneous Overcurrent Protection.....................................................................4 - 149
Ground Directional Overcurrent Protection............................................................................ 4 - 151
Sensitive Ground Time Overcurrent Protection.....................................................................4 - 156
Sensitive Ground Instantaneous Overcurrent Protection.................................................4 - 159
Sensitive Ground Directional Overcurrent Protection ........................................................4 - 161
850 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL III
Page 6
Restricted Ground (Earth) Fault.....................................................................................................4 - 165
Negative Sequence Time Overcurrent Protection................................................................4 - 171
Negative Sequence Instantaneous Overcurrent Protection ...........................................4 - 174
Negative Sequence Directional Overcurrent Protection...................................................4 - 177
Broken Conductor................................................................................................................................4 - 181
Load Encroachment...........................................................................................................................4 - 184
Cable Thermal Model.........................................................................................................................4 - 187
Voltage Elements ................................................................................................................................. 4 - 190
Undervoltage Curves .........................................................................................................................4 - 190
Phase Undervoltage Protection....................................................................................................4 - 192
Auxiliary Undervoltage......................................................................................................................4 - 196
Phase Overvoltage Protection.......................................................................................................4 - 199
Auxiliary Overvoltage Protection..................................................................................................4 - 202
Neutral Overvoltage Protection....................................................................................................4 - 205
Negative Sequence Overvoltage Protection...........................................................................4 - 208
Power Elements....................................................................................................................................4 - 211
Directional Power.................................................................................................................................4 - 211
Wattmetric Ground Fault.................................................................................................................4 - 217
Frequency Elements ...........................................................................................................................4 - 222
Fast Underfrequency .........................................................................................................................4 - 222
Underfrequency....................................................................................................................................4 - 227
Overfrequency.......................................................................................................................................4 - 230
Frequency Rate of Change..............................................................................................................4 - 234
Monitoring...................................................................................................................................... 4 - 239
Trip and Close Circuit Monitoring ................................................................................................. 4 - 239
Breaker Arcing Current......................................................................................................................4 - 247
Breaker Health ......................................................................................................................................4 - 250
Functions ................................................................................................................................................. 4 - 255
Power Factor..........................................................................................................................................4 - 255
Demand....................................................................................................................................................4 - 262
Current......................................................................................................................................................4 - 263
Real Power ..............................................................................................................................................4 - 266
Reactive Power .....................................................................................................................................4 - 269
Apparent Power....................................................................................................................................4 - 272
Pulsed Outputs......................................................................................................................................4 - 275
Digital Counters....................................................................................................................................4 - 278
RTD Temperature.................................................................................................................................4 - 282
Harmonic Detection ...........................................................................................................................4 - 287
Control ............................................................................................................................................. 4 - 290
Setpoint Group ...................................................................................................................................... 4 - 290
Breaker Control.....................................................................................................................................4 - 293
Virtual Input Control ...........................................................................................................................4 - 296
Trip Bus .....................................................................................................................................................4 - 297
Breaker Failure ...................................................................................................................................... 4 - 300
Setup..........................................................................................................................................................4 - 301
Initiate .......................................................................................................................................................4 - 304
Arc Flash Protection............................................................................................................................ 4 - 306
Synchrocheck ........................................................................................................................................4 - 309
Manual Close Blocking ...................................................................................................................... 4 - 314
Cold Load Pickup.................................................................................................................................. 4 - 317
Undervoltage Restoration................................................................................................................ 4 - 321
Underfrequency Restoration.......................................................................................................... 4 - 325
Bus Transfer............................................................................................................................................4 - 329
ATS Wiring Diagrams .........................................................................................................................4 - 347
Autoreclose............................................................................................................................................. 4 - 351
Setup..........................................................................................................................................................4 - 353
Initiate .......................................................................................................................................................4 - 360
IV 850 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL
Page 7
Shot x.........................................................................................................................................................4 - 361
Rate Supervision...................................................................................................................................4 - 363
Current Supervision............................................................................................................................4 - 365
Zone Coordination...............................................................................................................................4 - 368
VT Fuse Failure.......................................................................................................................................4 - 371
FlexLogic .........................................................................................................................................4 - 373
Timers ........................................................................................................................................................4 - 382
Non-volatile Latches...........................................................................................................................4 - 383
FlexLogic Equation...............................................................................................................................4 - 385
Viewing FlexLogic Graphics............................................................................................................4 - 385
FlexElements...........................................................................................................................................4 - 386
Testing..............................................................................................................................................4 - 393
Simulation................................................................................................................................................4 - 394
Setup..........................................................................................................................................................4 - 394
Pre-Fault...................................................................................................................................................4 - 395
Fault ...........................................................................................................................................................4 - 396
Post-Fault ................................................................................................................................................4 - 397
Test LEDs ..................................................................................................................................................4 - 398
Contact Inputs .......................................................................................................................................4 - 399
Output Relays.........................................................................................................................................4 - 400
5.STATUS Breakers ............................................................................................................................................... 5 - 2
Last Trip Data..................................................................................................................................... 5 - 3
Arc Flash............................................................................................................................................... 5 - 4
Contact Inputs................................................................................................................................... 5 - 4
Output Relays .................................................................................................................................... 5 - 5
Output Relay 1 (TRIP)................................................................................................................................5 - 5
Output Relay 2 (CLOSE) ...........................................................................................................................5 - 5
Virtual Inputs...................................................................................................................................... 5 - 6
Virtual Outputs .................................................................................................................................. 5 - 7
Flex State ............................................................................................................................................. 5 - 7
Communications.............................................................................................................................. 5 - 8
GOOSE Rx and Tx.......................................................................................................................................5 - 8
Information .......................................................................................................................................5 - 10
Main CPU.................................................................................................................................................... 5 - 10
Comms CPU .............................................................................................................................................. 5 - 10
Hardware Versions................................................................................................................................ 5 - 11
Device Status ...................................................................................................................................5 - 12
Clock.....................................................................................................................................................5 - 13
PTP Status..........................................................................................................................................5 - 13
Autoreclose 1...................................................................................................................................5 - 14
6.METERING Summary.............................................................................................................................................. 6 - 4
Currents................................................................................................................................................ 6 - 5
Voltages................................................................................................................................................ 6 - 7
Frequency............................................................................................................................................6 - 8
Fast Underfrequency...................................................................................................................... 6 - 9
Harmonics 1(Harmonics 2).......................................................................................................... 6 - 9
Harmonic Detection......................................................................................................................6 - 10
Synchrocheck ..................................................................................................................................6 - 11
Power...................................................................................................................................................6 - 12
Energy..................................................................................................................................................6 - 13
Power Factor....................................................................................................................................6 - 14
850 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL V
Page 8
Current Demand 1.........................................................................................................................6 - 14
Power Demand...............................................................................................................................6 - 15
Thermal Capacity...........................................................................................................................6 - 15
Directional Power ..........................................................................................................................6 - 16
Wattmetric Ground Fault...........................................................................................................6 - 16
Arc Flash ............................................................................................................................................6 - 16
RTDs .....................................................................................................................................................6 - 17
RTD Maximums...............................................................................................................................6 - 18
Analog Inputs...................................................................................................................................6 - 19
FlexElements....................................................................................................................................6 - 20
7.RECORDS Events.....................................................................................................................................................7 - 1
Transient Records.............................................................................................................................7 - 2
Fault Reports.......................................................................................................................................7 - 3
Data Logger.........................................................................................................................................7 - 4
Breakers................................................................................................................................................7 - 5
Breaker Arcing Current........................................................................................................................... 7 - 5
Breaker Health ........................................................................................................................................... 7 - 5
Digital Counters.................................................................................................................................7 - 6
Clear Records .....................................................................................................................................7 - 7
8.MAINTENANCE Environmental Health Report .....................................................................................................8 - 1
A.APPENDIX A Warranty...............................................................................................................................................A - 1
Revision history..................................................................................................................................A - 1
Major Updates............................................................................................................................................ A - 2
VI 850 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL
Page 9
GE
Grid Solutions
850 Feeder Protection System
Chapter 1: Introduction
Introduction
The Mulitlin 850 relay is a microprocessor-based unit intended for the management and
primary protection of distribution feeders, as well as for the management and backup
protection of buses, transformers, and transmission lines. The 850 relay is particularly
suited to overhead feeders, where automatic reclosing is normally applied.
Overview
Each relay provides protection, control, and monitoring functions with both local and
remote human interfaces. They also display the present trip/alarm conditions, and most of
the more than 35 measured system parameters. Recording of past trip, alarm or control
events, maximum demand levels, and energy consumption is also performed.
These relays contain many innovative features. To meet diverse utility standards and
industry requirements, these features have the flexibility to be programmed to meet
specific user needs. This flexibility will naturally make a piece of equipment difficult to
learn. To aid new users in getting basic protection operating quickly, setpoints are set to
typical default values and advanced features are disabled. These settings can be
reprogrammed at any time.
Programming can be accomplished with the front panel keys and display. Due to the
numerous settings, this manual method can be somewhat laborious. To simplify
programming and provide a more intuitive interface, setpoints can be entered with a PC
running the EnerVista 8 Setup software provided with the relay. Even with minimal
computer knowledge, this menu-driven software provides easy access to all front panel
functions. Actual values and setpoints can be displayed, altered, stored, and printed. If
settings are stored in a setpoint file, they can be downloaded at any time to the front panel
program port of the relay via a computer cable connected to the serial port of any
personal computer.
A summary of the available functions and a single-line diagram of protection and control
features is shown below. For a complete understanding of each feature operation, refer to
Chapter 4: Setpoints. The logic diagrams include a reference to every setpoint related to a
feature and show all logic signals passed between individual features. Information related
to the selection of settings for each setpoint is also provided.
850 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL 1–1
Page 10
DESCRIPTION OF THE 850 FEEDER PROTECTION SYSTEM CHAPTER 1: INTRODUCTION
Description of the 850 Feeder Protection System
CPU
Relay functions are controlled by two processors: a Freescale MPC5125 32-bit
microprocessor that measures all analog signals and digital inputs and controls all output
relays, and a Freescale MPC8358 32-bit microprocessor that controls all the advanced
Ethernet communication protocols.
Analog Input and Waveform Capture
Magnetic transformers are used to scale-down the incoming analog signals from the
source instrument transformers. The analog signals are then passed through a 11.5 kHz
low pass analog anti-aliasing filter. All signals are then simultaneously captured by sample
and hold buffers to ensure there are no phase shifts. The signals are converted to digital
values by a 16-bit A/D converter before finally being passed on to the CPU for analysis.
The 'raw' samples are scaled in software, then placed into the waveform capture buffer,
thus emulating a fault recorder. The waveforms can be retrieved from the relay via the
EnerVista 8 Series Setup
Frequency
Frequency measurement is accomplished by measuring the time between zero crossings
of the composite signal of three-phase bus voltages, line voltage or three-phase currents.
The signals are passed through a low pass filter to prevent false zero crossings. Frequency
tracking utilizes the measured frequency to set the sampling rate for current and voltage
which results in better accuracy for the Discrete Fourier Transform (DFT) algorithm for offnominal frequencies.
The main frequency tracking source uses three-phase bus voltages. The frequency
tracking is switched automatically by an algorithm to the alternative reference source, i.e.,
three-phase currents signal or line voltage for the configuration of tie-breaker, if the
frequency detected from the three-phase voltage inputs is declared invalid. The switching
will not be performed if the frequency from the alternative reference signal is detected
invalid. Upon detecting valid frequency on the main source, the tracking will be switched
back to the main source. If a stable frequency signal is not available from all sources, then
the tracking frequency defaults to the nominal system frequency.
Phasors, Transients, and Harmonics
All waveforms are processed eight times every cycle with a DC decaying removal filter and
a Discrete Fourier Transform (DFT). The resulting phasors have fault current transients and
all harmonics removed. This results in an overcurrent relay that is extremely secure and
reliable and one that will not overreach.
Processing of AC Current Inputs
The DC Decaying Removal Filter is a short window digital filter, which removes the DC
decaying component from the asymmetrical current present at the moment a fault occurs.
This is done for all current signals used for overcurrent protection; voltage signals use the
same DC Decaying Removal Filter. This filter ensures no overreach of the overcurrent
protection.
The Discrete Fourier Transform (DFT) uses exactly one cycle of samples to calculate a
phasor quantity which represents the signal at the fundamental frequency; all harmonic
components are removed. All subsequent calculations (e.g. power, etc.) are based upon the
current and voltage phasors, such that the resulting values have no harmonic
components. RMS (root mean square) values are calculated from one cycle of samples
prior to filtering.
Protection Elements
All voltage, current and frequency protection elements are processed eight times every
cycle to determine if a pickup has occurred or a timer has expired. The voltage and current
protection elements use RMS current/voltage, or the magnitude of the phasor.
software for display and diagnostics.
1–2 850 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL
Page 11
CHAPTER 1: INTRODUCTION DESCRIPTION OF THE 850 FEEDER PROTECTION SYSTEM
892770A3.CDR
3 CTs
CT
27P
59P
59N
59_2
VTFF
81U
81O
2
2
4
81R
51N
50N
67N
87G
27X
59X
METERING
TRANSIENT RECORDER
EVENT RECORDER
FAULT REPORT
LOAD
BUS
TRIP
52
79
CLOSE
MONITORING
CLP
50BF
51P
50P
22
67P
51_2
50_2
67_2
49
50G/
51G
51G
50G
67G
50G/
51G
51SG
50SG 67SG
25
32N
2222
22
2
V_2
BUS
BREAKER
32
2
850
Feeder Protection System
V_0
Figure 1-1: Single Line Diagram
Table 1-1: ANSI Device Numbers and Functions
ANSI Device Description
25 Synchrocheck
27P (2) Phase Undervoltage
27X (2) Auxiliary Undervoltage
32 (2) Directional Power
32N Wattmetric Ground Fault (Wattmetric zero sequence directional)
49 Cable Thermal Model
50BF Breaker Failure
50G Ground Instantaneous Overcurrent
50SG Sensitive Ground Instantaneous Overcurrent
50N (2) Neutral Instantaneous Overcurrent
50P (2) Phase Instantaneous Overcurrent
50_2 Negative Sequence Instantaneous Overcurrent
51G Ground Time Overcurrent
51SG Sensitive Ground Time Overcurrent
51N (2) Neutral Time Overcurrent
51P (2) Phase Time Overcurrent
51_2 Negative Sequence Time Overcurrent
52 AC Circuit Breaker
55 (2) Power Factor
59N Neutral Overvoltage
59P (2) Phase Overvoltage
850 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL 1–3
Page 12
DESCRIPTION OF THE 850 FEEDER PROTECTION SYSTEM CHAPTER 1: INTRODUCTION
ANSI Device Description
59X Auxiliary Overvoltage
59_2 Negative Sequence Overvoltage
67G Ground Directional Element
67SG Sensitive Ground Directional Element
67N Neutral Directional Element
67P Phase Directional Element
67_2 Negative Sequence Directional Element
79 Automatic Recloser
81O (2) Overfrequency
81U (4) Underfrequency
81R Frequency Rate of Change
87G Restricted Ground Fault (RGF)
I1/12 Broken Conductor
VTFF Voltage Transformer Fuse Failure
Table 1-2: Other Device Functions
Description
Analog Input
Analog Output
Arc Flash Protection
Automatic Bus Transfer Scheme
Breaker Arcing Current (I2t)
Breaker Control
Breaker Health
Cold Load Pickup
Data Logger
Demand
Digital Counters
Event Recorder
Fast Underfrequency
Fault Report and Fault Locator
FlexLogic Equations
Flexstates
IEC 61850 Communications
Load Encroachment
Manual Close Blocking
Metering: current, voltage, power, PF, energy, frequency, harmonics, THD
Modbus User Map
Non-volatile Latches
Output Relays
Setpoint Groups (6)
Trip Bus (6)
Transient Recorder (Oscillography)
Trip and Close Coil Monitoring
Underfrequency Restoration
Undervoltage Restoration
User-programmable LEDs
1–4 850 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL
Page 13
CHAPTER 1: INTRODUCTION SECURITY OVERVIEW
Level 1 Level 2
Level 1 Level 2
Setpoints
Device
System
Inputs
Outputs
Protection
Monitoring
Control
FlexLogic
S
tatus
Breakers
Metering
Records
Events
Transients
Fault Reports
Breakers
Dig Counters
Clear Records
Targets
Data Logger
Testing
Summary
Currents
Voltages
Frequency
Harmonics
Synchrocheck
Power
Energy
Current Demand
Thermal Capacity
Power Demand
Directional Power
Wattmetric Gnd Flt
Fast Underfrequency
Arc Flash
RTDs
Analog Inputs
elays
Vir
Contact Inputs
Output R
tual Inputs
Arc Flash
Virtual Outputs
Communications
Information
Device Status
Autoreclose 1
Clock
Last Trip Data
Flex States
Description
User-programmable Pushbuttons
Virtual Inputs (32)
Virtual Outputs (32)
Figure 1-2: Main Menu Hierarchy
850 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL 1–5
Security Overview
The following security features are available:
BASIC SECURITY
Page 14
SECURITY OVERVIEW CHAPTER 1: INTRODUCTION
The basic security feature is present in the default offering of the 850 relay. The
introduces the notion of roles for different levels of authority. Roles are used as login
850
names with associated passwords stored on the device. The following roles are available
at present: Administrator, Operator, Factory and Observer, with a fixed permission
structure for each one. Note that the Factory role is not available for users, but strictly used
in the manufacturing process.
The 850 can still use the Setpoint access switch feature, but enabling the feature can be
done only by an Administrator. Setpoint access is controlled by a keyed switch to offer
some minimal notion of security.
CYBERSENTRY
The CyberSentry Embedded Security feature is a software option that provides advanced
security services. When the software option is purchased, the Basic Security is
automatically disabled.
CyberSentry provides security through the following features:
• An Authentication, Authorization, Accounting (AAA) Remote Authentication Dial-In
User Service (RADIUS) client that is centrally managed, enables user attribution, and
uses secure standards based strong cryptography for authentication and credential
protection.
• A Role-Based Access Control (RBAC) system that provides a permission model that
allows access to 850
device operations and configurations based on specific roles
and individual user accounts configured on the AAA server. At present the defined
roles are: Administrator, Operator and Observer.
• Strong encryption of all access and configuration network messages between the
EnerVista software and 850
devices using the Secure Shell (SSH) protocol, the
Advanced Encryption Standard (AES), and 128-bit keys in Galois Counter Mode (GCM)
as specified in the U.S. National Security Agency Suite B extension for SSH and
approved by the National Institute of Standards and Technology (NIST) FIPS-140-2
standards for cryptographic systems.
• Security event reporting through the Syslog protocol for supporting Security
Information Event Management (SIEM) systems for centralized cyber security
monitoring.
There are two types of authentication supported by CyberSentry that can be used to
access the 850
device:
• Device Authentication – in which case the authentication is performed on the
device itself, using the predefined roles as users (No RADIUS involvement).
850
– 850 authentication using local roles may be done either from the front panel or
through EnerVista.
• Server Authentication - in which case the authentication is done on a RADIUS server,
using individual user accounts defined on the server. When the user accounts are
created, they are assigned to one of the predefined roles recognized by the 850
– 850 authentication using RADIUS server may be done only through EnerVista.
FASTPATH:
WiFi and USB do not currently support CyberSentry security. For this reason WiFi is
disabled by default if the CyberSentry option is purchased. The user can enable WiFi, but
be aware that doing so violates the security and compliance model that CyberSentry is
supposed to provide.
When both 850 device and server authentication are enabled, the 850 automatically
directs authentication requests to the 850
device or the respective RADIUS server, based
on user names. If the user ID credential does not match one of the device local accounts,
the 850
automatically forwards the request to a RADIUS server when one is provided. If a
RADIUS server is provided, but is unreachable over the network, server authentication
requests are denied. In this situation, use local 850
system.
850
1–6 850 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL
device accounts to gain access to the
Page 15
CHAPTER 1: INTRODUCTION 850 ORDER CODES
NOTE
USER ROLES
User Access Levels are used to grant varying permissions to specific user roles. User roles
are used by both Basic Security and CyberSentry.
The following user roles are supported:
• Administrator: The Administrator role has complete read and write access to all
settings and commands. The role does not allow concurrent access. The Administrator
role also has an operand to indicate when it is logged on.
• Operator: The Operator role is present to facilitate operational actions that may be
programmed and assigned to buttons on the front panel. The Operator has read/write
access to all settings under the command menu/section. The Operator can view
settings from EnerVista or the front panel but does not have the ability to change any
settings. This role is not a concurrent role.
• Observer: The Observer role has read-only access to all 850 settings. This role allows
concurrent access. The Observer is the default role if no authentication has been done
to the device. This role can download settings files and records from the device.
• Factory: This is an internal non-user accessible role used for manufacturing
diagnostics. The ability to enable or disable this role is a security setting that the
Administrator controls.
GENERAL RULES FOR USER ROLES WITH CYBERSENTRY
1. The only concurrent role is Observer. If the user is logged in through serial, front panel,
or over the network, that counts as the role being logged in for concurrency reasons.
2. Both EnerVista and the front panel provide a one-step logoff. For the front panel, the
root menu has a logoff command. From EnerVista right-clicking on a device and
providing a logoff function from the context menu is sufficient.
3. The EnerVista Login Screen has “User Name:” and “Password:” fields for the default
remote (Radius) authentication, but when a “Local Authentication” checkbox is
selected the “User Name:” field changes to a drop down menu where the user can
select one of the predefined roles on the 850.
850 Order Codes
NOTE:
850 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL 1–7
Support of some of the features described in the "Setpoints" section are order code
dependent. The 8 Series unit is ordered with a number of required and optional modules.
Each of these modules can be supplied in a number of configurations specified at the time
of ordering.
The information to specify an 850 relay is provided in the following Order Code figure:
Page 16
850 ORDER CODES CHAPTER 1: INTRODUCTION
892800A3.PDF
850 E * NN * H * * A * N G * * * * * * * * * N
Interface 850 || | ||||||||||||||||||
850 Feeder Protection System (Standard: Engli sh Language;
High Voltage PS, Graphical Control Panel)
Language E | | | | | | | | | | | | | | | | | | | | English
Phase Currents P1| |||||||||||||||||| 1A 3-phase current inputs (bank 1/2)
P5| |||||||||||||||||| 5A 3-phase current inputs (bank 1/2)
NN|||||||||||||||||| No phase current inputs (bank 3)
Ground Currents G1 | | | | | | | | | | | | | | | | | 1A ground input
G5 | | | | | | | | | | | | | | | | | 5A ground input
S1 | | | | | | | | | | | | | | | | | 1A ground + 1A sensitive ground input
S5 | | | | | | | | | | | | | | | | | 5A ground + 5A sensitive ground input
D1 | | | | | | | | | | | | | | | | | 1A ground + 1A ground input
D5 | | | | | | | | | | | | | | | | | 5A ground + 5A ground input
Power Supply L|||||||||||||||| 24 to 48 V DC
H|||||||||||||||| 110 to 250 V DC/110 to 230 V AC
Slot B (LV I/O)
N | | | | | | | | | | | | | | | None
R | | | | | | | | | | | | | | | 6 x RTDs (PT100, NI100, NI120)
S | | | | | | | | | | | | | | | 6 x RTDs (PT100, NI100, NI120, CU10)
Slot C (LV I/O) N|||||||||||||| None
R|||||||||||||| 6 x RTDs (PT100, NI100, NI120)
S|||||||||||||| 6 x RTDs (PT100, NI100, NI120, CU10)
Slot F (HV I/O) A
||||||||||||||||||||||||||2 Form A (Vmon), 3 Form C, 7 Digital Inputs (Low/High
Voltage, Int/Ext Supply)
Slot G (HV I/O) N|||||||||||| None
A
||||||||||||||||||||||||2 Form A (Vmon), 3 Form C, 7 Digital Inputs (Low/High
Voltage, Int/Ext Supply)
L|||||||||||| 7 DcmA O/P + 4 DcmA I/P + 1 RTD
Slot H (HV I/O) N | | | | | | | | | | | None
F | | | | | | | | | | | 10 Digital Inputs + 4 Arc Flash Inputs
A
||||||||||||||||||||||2 Form A (Vmon), 3 Form C, 7 Digital Inputs (Low/High
voltage, Int/Ext supply)
Faceplate G|||||||||| Color Graphical Display
Current Protection S | | | | | | | | | Basic configuration: 50P, 50N, 50G, 51P, 51N, 51G
M
||||||||||||||||||Standard configuration: Basic + 50SG, 50_2, 51SG, 51_2,
RGF
A
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Advanced configuration: Standard + 49, 67P, 67N, 67G,
67SG, 67_2, Load Encroachment, Broken Conductor, Fast
UF
Voltage Monitoring and Protection S
||||||||||||||||Standard Voltage Metering & Protection: 27P, 27X, 59P, 59N,
59X, 81O, 81U
P
||||||||||||||||Advanced Voltage Metering & Protection: Standard + 25, 32,
32N, 55, 59_2, 81R
Control B | | | | | | |
Basic: Setpoint Group Control, Virtual Inputs, Trip Bus,
Breaker Control
F | | | | | | | Standard: Basic + FlexLogic, CLP, 50BF
C
||||||||||||||Advanced: Standard + Autoreclose, Bus Transfer (requires
voltage option P)
Monitoring B
||||||||||||Basic: Breakers Coil Monitoring, Breaker Arcing, Harmonics,
THD, Demand, Trip Counters
C|||||| Standard: Basic + Advanced Breaker Health
A|||||| Advanced: Standard + Harmonic Detection
Communications S E
||||||||Front USB, 1 x Rear RS485 : Modbus RTU, DNP3.0,
IEC60870-5-103 + 1 x Ethernet (Modbus TCP), DNP3.0
1 E
|||||||
|
Advanced: Front USB, 1 x Rear RS485 + 2 x Ethernet Fiber,
MODBUS RTU/TCP, DNP3.0, IEC 60870-5-103/104, 1588,
SNTP
1 P | | | | Advanced + PRP
2 A
|||||||
|
Advanced + IEC 61850
2 E | | | | Advanced + PRP + IEC 61850
Fiber Optic Connector N | | | None
S||| ST, Multi-mode 1310 nm
C||| RJ45, Copper 10/100 M
Wireless Communication N | | None
W | | WiFi 802.11
Security B| Basic
A| CyberSentry Level 1
Future Option N Not Available
Figure 1-3: 850 Order Codes
FASTPATH:
1–8 850 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL
Harsh Environment Coating is a standard feature on all 8 Series units.
Page 17
CHAPTER 1: INTRODUCTION SPECIFICATIONS
Advanced security is only available with advanced communications (1E, 1P, 2A, 2E). When
the advanced communications option is selected, the Ethernet port on the main CPU is
disabled.
The “A” option on Slot H is only available if the “L” option is selected on Slot G.
Specifications
To obtain the total operating time, i.e. from the presence of a trip condition to initiation of a
trip, add 8
Protection
ARC FLASH HS PHASE/GROUND INSTANTANEOUS OVERCURRENT HS 50P/50G
Current:....................................................................Phasor Magnitude (special high speed algorithm)
Pickup Level:..........................................................0.050 to 30.000 x CT in steps of 0.001 x CT
Dropout Level: ......................................................97 to 98% of Pickup
Level Accuracy:....................................................For 0.1 to 0.2 x CT: ± 0.2% of reading or 1.5% of rated,
Operate Time:.......................................................4 ms at >6 x Pickup at 60 Hz
FAST UNDERFREQUENCY
Operating Parameter:.......................................Frequency and rate of change of frequency
UF Pickup Level:...................................................20.00 to 65.00 Hz in steps of 0.01 Hz
df/dt Pickup Level: ..............................................-10.00 to -0.10 Hz/s in steps of 0.01 Hz/s
Pickup Time Delay: .............................................0.000 to 6000.000 s in steps of 0.001 s
Dropout Time Delay: .........................................0.000 to 6000.000 s in steps of 0.001 s
Frequency Accuracy:.........................................± 0.01 Hz
Timer Accuracy:...................................................± 3% of operate time or ± ¼ cycle (whichever is greater)
ms output relay time to the operate times listed below.
whichever is greater
For > 0.2 x CT: ± 1.5% of reading
5 ms at >6 x Pickup at 50 Hz
4-8 ms at > (3-6) x Pickup at 60 Hz
4-10 ms at > (3-6) x Pickup at 50 Hz
PHASE/NEUTRAL/GROUND TIME OVERCURRENT (51P/N/G)
Current:....................................................................Phasor or RMS
Pickup Level:..........................................................0.050 to 30.000 x CT in steps of 0.001 x CT
Dropout Level: ......................................................97 to 98% of Pickup
Level Accuracy:....................................................For 0.1 to 2.0 x CT: ±0.5% of reading or ±0.4% of rated,
whichever is greater;
For > 2.0 x CT: ±1.5% of reading
Curve Shape:.........................................................IEEE Extremely/Very/Moderately Inverse;
ANSI Extremely/Very/Normally/Moderately Inverse;
Definite T ime, IEC A/B/C and Short Inverse;
IAC Extremely/Very/Inverse/Short Inverse;
FlexCurve A/B/C/D, I
Curve Multiplier:...................................................0.05 to 600.00 in steps of 0.01
Reset Time: ............................................................Instantaneous, Timed
Curve Timing Accuracy:...................................Currents > 1.03 to 20 x pickup: ± 3% of operate time or ± ½
cycle (whichever is greater) from pickup to operate
Voltage Restrained Function (51V):.............Modifies Pickup from 0.1 < V < 0.9 VT Nominal in a fixed
linear relationship
850 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL 1–9
2
t, I4t
Page 18
SPECIFICATIONS CHAPTER 1: INTRODUCTION
NOTE
FASTPATH:
NOTE:
Add 1.5 cycles to the curve time to obtain the TOC operating time, i.e., from fault inception
until operation.
SENSITIVE GROUND TIME OVERCURRENT (51SG)
Current:.................................................................... Isg (Phasor or RMS)
Pickup Level: .........................................................0.005 to 3.000 x CT in steps of 0.001 x CT
Dropout Level:......................................................97 to 98% of Pickup
Level Accuracy:.................................................... For 0.01 to 0.2 x CT: ± 0.5% of reading or ± 0.4% of rated
(whichever is greater)
For > 0.2 x CT: ± 1.5% of reading
Curve Shape:......................................................... IEEE Extremely/Very/Moderately Inverse
ANSI Extremely/Very/Normally/Moderately Inverse
IEC Curve A/B/C and Short Inverse
IAC Extreme/Very/Inverse/Short Inverse
FlexCurve™ A, FlexCurve™ B, FlexCurve™ C, FlexCurve™ D
2
I
t, I4t, Definite Time
Curve Multiplier: ..................................................0.05 to 600.00 in steps of 0.01
Reset Time: ............................................................Instantaneous, Timed
Curve Timing Accuracy: ..................................Currents > 1.1 x pickup: ± 3% of curve delay or ± 1/2 cycle
(whichever is greater) from pickup to operate
NEGATIVE SEQUENCE TIME OVERCURRENT (51_2)
Operating Parameter: ......................................I_2 (Fundamental Phasor Magnitude)
Pickup Level: .........................................................0.050 to 30.000 x CT in steps of 0.001 x CT
Dropout Level:......................................................97 to 98% of Pickup
Level Accuracy:.................................................... For 0.1 to 2.0 x CT:± 0.5% of reading or ±0.4% of rated,
whichever is greater
For > 2.0 x CT: ± 1.5% of reading
Curve Shape:......................................................... IEEE Extremely/Very/Moderately Inverse
ANSI Extremely/Very/Normally/Moderately Inverse
IEC Curve A/B/C and Short Inverse
IAC Extreme/Very/Inverse/Short Inverse
FlexCurve™ A, FlexCurve™ B, FlexCurve™ C, FlexCurve™ D
2
I
t, I4t, Definite Time
Curve Multiplier: ..................................................0.05 to 600.00 in steps of 0.01
Reset Time: ............................................................Instantaneous, Timed
Curve Timing Accuracy: ..................................Currents > 1.1 x pickup: ± 3% of curve delay or ± ½ cycle
(whichever is greater) from pickup to operate
Add 1.5 cycles to the curve time to obtain the TOC operating time, i.e., from fault inception
until operation.
PHASE/NEUTRAL/GROUND INSTANTANEOUS OVERCURRENT (50P/N/G)
Current (for Phase IOC only): .........................Phasor or RMS
Current (for Neutral/Ground IOC only):..... Fundamental Phasor Magnitude
Pickup Level: .........................................................0.050 to 30.000 x CT in steps of 0.001 x CT
Dropout Level:......................................................97 to 98% of Pickup
Level Accuracy:.................................................... For 0.1 to 2.0 x CT: ±0.5% of reading or ±0.4% of rated,
whichever is greater
For > 2.0 x CT: ±1.5% of reading
Operate Time: ......................................................<12 ms typical at 3 × Pickup at 60 Hz (Phase/Ground IOC)
<16 ms typical at 3 × Pickup at 60 Hz (Neutral IOC)
<15 ms typical at 3 × Pickup at 50 Hz (Phase/Ground IOC)
<20 ms typical at 3 × Pickup at 50 Hz (Neutral IOC)
1–10 850 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL
Page 19
CHAPTER 1: INTRODUCTION SPECIFICATIONS
NOTE
NOTE:
Operating time specifications given above are applicable when RMS inputs are used.
Typical times are average operate times over multiple test cases.
Timer Accuracy:...................................................±3% of delay setting or ± ¼ cycle (whichever is greater) from
pickup to operate
SENSITIVE GROUND INSTANTANEOUS OVERCURRENT (50SG)
Current:....................................................................Isg (Fundamental Phasor Magnitude)
Pickup Level (Gnd IOC):.....................................0.005 to 3.000 x CT in steps of 0.001 x CT
Dropout Level: ......................................................97 to 98% of Pickup
Level Accuracy:....................................................For 0.01 to 0.2 x CT: ±0.5% of reading or ±0.4% of rated,
For > 0.2 x CT: ±1.5% of reading
Operate Time:.......................................................<12 ms typical at 3 × Pickup at 60 Hz
<15 ms typical at 3 × Pickup at 50 Hz
Timer Accuracy:...................................................±3% of delay setting or ± ¼ cycle (whichever is greater) from
pickup to operate
NOTE:
Add 1.5 cycles to the curve time to obtain the TOC operating time, i.e., from fault inception
until operation.
NEGATIVE SEQUENCE INSTANTANEOUS OVERCURRENT (50_2)
Current:....................................................................I_2 Fundamental Phasor Magnitude
Pickup Level:..........................................................0.050 to 30.000 x CT in steps of 0.001 x CT
Dropout Level: ......................................................97 to 98% of Pickup
Level Accuracy:....................................................For 0.1 to 2.0 x CT: ±0.5% of reading or ± 0.4% of rated,
whichever is greater
For > 2.0 x CT: ± 1.5% of reading
Pickup Time Delay: .............................................0.000 to 6000.000 s in steps of 0.001 s
Dropout Time Delay: .........................................0.000 to 6000.000 s in steps of 0.001 s
Overreach:..............................................................< 2%
Operate Time:.......................................................< 12 ms typical at 3 x Pickup at 60 Hz
< 15 ms typical at 3 x Pickup at 50 Hz
Timer Accuracy:...................................................±3% of delay setting or ± ¼ cycle (whichever is greater) from
pickup to operate
PHASE DIRECTIONAL OVERCURRENT (67P)
Relay Connection:...............................................90º(Quadrature)
Quadrature Voltage:..........................................ABC phase seq.: phase A (Vbc), phase B (Vca), phase C (Vab);
ACB phase seq.: phase A (Vcb), phase B (Vac), phase C (Vba)
Polarizing Voltage Threshold:........................0.050 to 3.000 x VT in steps of 0.001 x VT
Current Sensitivity Threshold: .......................0.05 x CT
Characteristic Angle:.........................................0º to 359º in steps of 1°
Angle Accuracy:...................................................± 2º
Operation Time (FlexLogic™ operands): ..Reverse to Forward transition: < 12 ms, typically;
Forward to Reverse transition: <8 ms, typically
850 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL 1–11
Page 20
SPECIFICATIONS CHAPTER 1: INTRODUCTION
NEUTRAL DIRECTIONAL OVERCURRENT (67N)
Directionality:........................................................ Co-existing forward and reverse
Polarizing:...............................................................Voltage, Current, Dual
Polarizing Voltage:..............................................V_0 or VX
Polarizing Current:.............................................. Ig
Operating Current:............................................. I_0
Level Sensing:.......................................................3 x (|I_0| – K x |I_1|), Ig
Restraint, K:........................................................... 0.000 to 0.500 in steps of 0.001
Characteristic Angle:......................................... -90º to 90º in steps of 1°
Limit Angle:............................................................ 40º to 90º in steps of 1°, independent for forward and
reverse
Angle Accuracy:................................................... ±2º
Pickup Level: .........................................................0.050 to 30.000 x CT in steps of 0.001 x CT
Dropout Level:......................................................97 to 98% of Pickup
Operate Time (no direction transition): ....< 16 ms at 3 x Pickup at 60 Hz
< 20 ms at 3 x Pickup at 50 Hz
GROUND DIRECTIONAL OVERCURRENT (67G)
Directionality:........................................................ Co-existing forward and reverse
Polarizing:...............................................................Voltage, Current, Dual
Polarizing Voltage:..............................................V_0 or VX
Polarizing Current:.............................................. Isg
Operating Current:............................................. Ig
Level Sensing:.......................................................Ig, Isg
Characteristic Angle:......................................... -90º to 90º in steps of 1°
Limit Angle:............................................................ 40º to 90º in steps of 1°, independent for forward and
reverse
Angle Accuracy:................................................... ±2º
Pickup Level: .........................................................0.050 to 30.000 x CT in steps of 0.001
Dropout Level:......................................................97 to 98%
Operate Time (no direction transition): ....< 12 ms typical at 3 x Pickup at 60 Hz
< 15 ms typical at 3 x Pickup at 50 Hz
SENSITIVE GROUND DIRECTIONAL OVERCURRENT (67SG)
Directionality:........................................................ Co-existing forward and reverse
Polarizing:...............................................................Voltage, Current, Dual
Polarizing Voltage:..............................................V_0 or VX
Polarizing Current:.............................................. Ig
Operating Current:............................................. Isg
Level Sensing:.......................................................Ig, Isg
Characteristic Angle:......................................... -90º to 90º in steps of 1°
Limit Angle:............................................................ 40º to 90º in steps of 1°, independent for forward and
reverse
Angle Accuracy:................................................... ± 2º
Pickup Level: .........................................................0.005 to 3.000 x CT in steps of 0.001 x CT
Dropout Level:......................................................97 to 98%
Operate Time (no direction transition): ....< 12 ms typical at 3 × Pickup at 60 Hz
< 15 ms typical at 3 × Pickup at 50 Hz
1–12 850 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL
Page 21
CHAPTER 1: INTRODUCTION SPECIFICATIONS
NEGATIVE SEQUENCE DIRECTIONAL OVERCURRENT (67_2)
Directionality:........................................................Co-existing forward and reverse
Polarizing: ...............................................................Voltage
Polarizing Voltage:..............................................V_2
Operating Current: .............................................I_2
Level Sensing:.......................................................Negative-sequence: |I_2| – K x |I_1|
Restraint, K: ...........................................................0.000 to 0.500 in steps of 0.001
Characteristic Angle:.........................................0º to 90º in steps of 1°
Limit Angle: ............................................................40º to 90º in steps of 1°, independent for forward and
reverse
Angle Accuracy:...................................................± 2º
Pickup Level:..........................................................0.050 to 30.000 x CT in steps of 0.001 x CT
Dropout Level: ......................................................97 to 98% of Pickup
Operate Time:.......................................................< 12 ms typical at 3 x Pickup at 60 Hz
< 15 ms typical at 3 x Pickup at 50 Hz
RESTRICTED GROUND (EARTH) FAULT (87G)
Operating Parameter:.......................................Ia, Ib, Ic and Ig (Fundamental Phasor Magnitude)
Pickup Level:..........................................................0.050 to 30.000 x CT in steps of 0.001 x CT (phase CT)
Ground Supervision Level:..............................0.050 to 30.000 x CT in steps of 0.001 x CT (ground CT)
Dropout Level: ......................................................97 to 98% of Pickup
Slope Range: .........................................................0 to 100% in steps of 1%
Pickup Delay:.........................................................0.000 to 6000.000 s in steps of 0.001 s
Level Accuracy:....................................................For 0.1 to 2.0 x CT: ±0.5% of reading or ±0.4% of rated,
whichever is greater
For > 2.0 x CT: ± 1.5% of reading
Operate Time:.......................................................<25 ms at 1.1 x slope x Imax at 60 Hz, typically
<30 ms at 1.1 x slope x Imax at 50 Hz, typically
Timing Accuracy: ................................................±3% of delay setting or ± ¼ cycle (whichever is greater) from
pickup to operate
BROKEN CONDUCTOR
Minimum Operating Positive Current:.......0.05 to 1.00 x CT in steps of 0.01 x CT
Maximum Operating Positive Current:......0.05 to 5.00 x CT in steps of 0.01 x CT
Pickup Level:..........................................................20.0% to 100.0% in steps of 0.1%
Dropout Level: ......................................................97% to 98% of the Pickup Level
Pickup Time Delay: .............................................0.000 to 6000.000 s in steps of 0.001 s
Timer Accuracy:...................................................± 3% of delay setting or ± ¾ cycle (whichever is greater) from
pickup to operate
LOAD ENCROACHMENT
Operating Parameter:.......................................Positive sequence impedance (V1/I1)
Reach (in secondary Ω): ...................................0.02 to 250.00 Ω in steps of 0.01Ω
Angle:........................................................................5º to 50º in steps of 1°
Minimum Voltage:...............................................0.00 to 1.50 x VT in steps of 0.01 x VT
Impedance Accuracy:.......................................± 5%
Angle Accuracy:...................................................± 2º
Pickup Time Delay: .............................................0.000 to 6000.000 s in steps of 0.001 s
Dropout Time Delay: .........................................0.000 to 6000.000 s in steps of 0.001 s
Operate Time:.......................................................<20 ms at 1.1 x pickup at 60 Hz
<24 ms at 1.1 x pickup at 50 Hz
Timing Accuracy: ................................................± 3% of delay setting or ± ¼ cycle (whichever is greater) from
pickup to operate
850 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL 1–13
Page 22
SPECIFICATIONS CHAPTER 1: INTRODUCTION
CABLE THERMAL MODEL (49)
Operating Parameter: ......................................RMS current
Pickup Level: .........................................................0.050 to 30.000 x CT in steps of 0.001 x CT
Alarm Level:...........................................................70.0 to 110.0% in steps 0.1%
Heat Time Constant (τ
Cool Time Constant (τ
):.................................3.0 to 600.0 min in steps of 0.1 min
H
):.................................. 1.00 to 6.00 x τH in steps of 0.01 x τ
C
H
Current Level Accuracy:...................................For 0.1 to 2.0 x CT: ± 0.5% of reading or ± 0.4% of rated
(whichever is greater)
For > 2.0 x CT: ± 1.5% of reading
Operate Time: ......................................................< 45 ms at 60 Hz (from 0 to 120 x pickup)
< 50 ms at 50 Hz (from 0 to 120 x pickup)
PHASE UNDERVOLTAGE (27P)
Voltage: ...................................................................Fundamental Phasor Magnitude
Minimum Voltage: .............................................. 0.00 to 1.50 x VT in steps of 0.01 x VT
Pickup Level: .........................................................0.00 to 1.50 x VT in steps of 0.01 x VT
Dropout Level:......................................................102 to 103% of Pickup
Level Accuracy:.................................................... ±0.5% of reading from 10 to 208 V
Phases Required for Operation:................... Any one, Any two, All three
Undervoltage Curves:.......................................Definite Time, GE IAV Inverse Time or FlexCurves A/B/C/D
Pickup Time Delay:.............................................0.000 to 6000.000 s in steps of 0.001s
Operate Time: ......................................................< 20 ms at 0.90 x pickup at 60 Hz
< 25 ms at 0.90 x pickup at 50 Hz
Curve Timing Accuracy: ..................................at < 0.90 x pickup: ± 3.5% of curve delay or ± ½ cycle
(whichever is greater) from pickup to operate
AUXILIARY UNDERVOLTAGE (27X)
Operating Parameter: ......................................Vx (Phasor)
Minimum Voltage: .............................................. 0.00 to 1.50 x VT in steps of 0.01 x VT
Pickup Level: .........................................................0.00 to 1.50 x VT in steps of 0.01 x VT
Dropout Level:......................................................102 to 103% of Pickup
Level Accuracy:.................................................... ± 0.5% of reading from 10 to 208 V
Undervoltage Curves:.......................................Definite Time, GE IAV Inverse Time or FlexCurves A/B/C/D
Pickup Time Delay:.............................................0.000 to 6000.000 s in steps of 0.001 s
Operate Time: ......................................................< 20 ms at 0.90 x pickup at 60 Hz
< 25 ms at 0.90 x pickup at 50 Hz
Curve Timing Accuracy: ..................................at < 0.90 x pickup: ± 3.5% of curve delay or ± ½ cycle
(whichever is greater) from pickup to operate
PHASE OVERVOLTAGE (59P)
Voltage: ...................................................................Fundamental Phasor Magnitude
Pickup Level: .........................................................0.02 to 3.00 x VT in steps of 0.01 x VT
Dropout Level:......................................................97 to 98% of Pickup
Level Accuracy:.................................................... ±0.5% of reading from 10 to 208 V
Phases Required for Operation:................... Any one, Any two, All three
Pickup Time Delay:.............................................0.000 to 6000.000 s in steps of 0.001s (Definite T ime)
Dropout Time Delay: .........................................0.000 to 6000.000 s in steps of 0.001s (Definite T ime)
Pickup Accuracy:................................................. Per phase voltage input channel error
Operate Time: ......................................................< 25 ms at 1.1 x pickup at 60Hz
< 30 ms at 1.1 x pickup at 50Hz
Timer Accuracy: ..................................................± 3% of delay setting or ± ¼ cycle (whichever is greater) from
pickup to operate
1–14 850 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL
Page 23
CHAPTER 1: INTRODUCTION SPECIFICATIONS
AUXILIARY OVERVOLTAGE (59X)
Pickup Level:..........................................................0.00 to 3.00 x VT in steps of 0.01 x VT
Dropout Level: ......................................................97 to 98% of Pickup
Level Accuracy:....................................................±0.5% of reading from 10 to 208 V
Pickup Time Delay: .............................................0.000 to 6000.000 s in steps of 0.001s
Dropout Time Delay: .........................................0.000 to 6000.000 s in steps of 0.001s
Operate Time:.......................................................< 25 ms at 1.1 x pickup at 60Hz
< 30 ms at 1.1 x pickup at 50Hz
Timer Accuracy:...................................................± 3% of delay setting time or ± ¼ cycle (whichever is greater)
from pickup to operate
NEUTRAL OVERVOLTAGE (59N)
Operating Parameter:.......................................3V_0 calculated from phase to ground voltages
Pickup Level:..........................................................0.02 to 3.00 x VT in steps of 0.01 x VT
Dropout Level: ......................................................97 to 98% of Pickup
Level Accuracy:....................................................±0.5% of reading from 10 to 208 V
Neutral Overvoltage Curves: .........................Definite time, FlexCurve A,B,C,D
Pickup Time Delay: .............................................0.000 to 6000.000 s in steps of 0.001 s (Definite Time)
Dropout Time Delay: .........................................0.000 to 6000.000 s in steps of 0.001 s (Definite Time)
Operate Time:.......................................................< 25 ms at 1.1 x pickup at 60Hz
< 30 ms at 1.1 x pickup at 50Hz
Curve Timing Accuracy:...................................at > 1.1 x Pickup: ± 3% of curve delay or ± 1 cycle (whichever
is greater) from pickup to operate
NEGATIVE SEQUENCE OVERVOLTAGE (59_2)
Operating Parameter:.......................................V_2
Pickup Level:..........................................................0.00 to 3.00 x VT in steps of 0.01 x VT
Dropout Level: ......................................................97 to 98% of Pickup
Level Accuracy:....................................................± 0.5% of reading from 10 to 208 V
Pickup Time Delay: .............................................0.000 to 6000.000 s in steps of 0.001 s
Dropout Time Delay: .........................................0.000 to 6000.000 s in steps of 0.001 s
Operate Time:.......................................................< 25 ms at 1.1 x pickup at 60 Hz
< 30 ms at 1.1 x pickup at 50 Hz
Timer Accuracy:................................................... ± 3% of delay setting or ± ¼ cycle (whichever is greater)
from pickup to operate
DIRECTIONAL POWER (32)
Measured Power: ................................................3-phase
Number of Stages:..............................................2
Characteristic Angle:.........................................0º to 359º in steps of 1°
Calibration Angle: ...............................................0.00º to 0.95º in steps of 0.05°
Power Pickup Range:.........................................–1.200 to 1.200 x Rated Power in steps of 0.001
Pickup Level Accuracy:.....................................± 1% or ± 0.001 x Rated Power, whichever is greater
Hysteresis:..............................................................2% or 0.001 x Rated Power, whichever is greater
Pickup Time Delay: .............................................0.000 to 6000.000 s in steps of 0.001 s
Operate Time:.......................................................< 55 ms at 1.1 x pickup at 60 Hz
< 65 ms at 1.1 x pickup at 50 Hz
Timer Accuracy:...................................................± 3% of delay setting or ± ¼ cycle (whichever is greater) from
pickup to operate
850 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL 1–15
Page 24
SPECIFICATIONS CHAPTER 1: INTRODUCTION
WATTMETRIC GROUND FAULT (32N)
Measured Power:................................................zero-sequence
Characteristic Angle:......................................... 0º to 359º in steps of 1°
Power Pickup Range: ........................................ 0.001 to 1.200 CT x VT in steps of 0.001
Pickup Level Accuracy: ....................................± 1% or ± 0.0025 CT x VT, whichever is greater
Hysteresis:.............................................................. 3% or 0.001 CT x VT, whichever is greater
Curve: .......................................................................Definite Time, Inverse Time, or FlexCurve
Operating Voltage Pickup Level:..................0.02 to 3.00 x VT in steps of 0.01 x VT
Operating Current Pickup Level:.................. 0.002 to 30.000 x CT in steps of 0.001 x CT
Power Pickup Delay:..........................................0.000 to 6000.000 s in steps of 0.001 s
Inverse Time Multiplier:.................................... 0.01 to 2.00 s in steps of 0.01 s
Operate Time: ......................................................< 40 ms at 1.1 x pickup at 60 Hz
< 47 ms at 1.1 x pickup at 50 Hz
Curve Timing Accuracy: ..................................± 3% of curve delay or ± ¾ cycle (whichever is greater) from
pickup to operate
UNDERFREQUENCY (81U)
Pickup Level: .........................................................20.00 to 65.00 Hz in steps of 0.01
Dropout Level:......................................................Pickup + 0.03 Hz
Pickup Time Delay:.............................................0.000 to 6000.000 s in steps of 0.001s
Dropout Time Delay: .........................................0.000 to 6000.000 s in steps of 0.001s
Minimum Operating Voltage:........................ 0.000 to 1.250 x VT in steps of 0.001 x VT
Minimum Operating Current:........................0.000 to 30.000 x CT in steps of 0.001 x CT
Level Accuracy:.................................................... ± 0.001 Hz
Timer Accuracy: ..................................................± 3% of delay setting or ± ¼ cycle (whichever is greater) from
pickup to operate
Operate Time: ......................................................typically 7.5 cycles at 0.1 Hz/s change
typically 7 cycles at 0.3 Hz/s change
typically 6.5 cycles at 0.5 Hz/s change
FASTPATH:
Typical times are average Operate Times including variables such as frequency change
instance, test method, etc., and may vary by ± 0.5 cycles.
FASTPATH:
OVERFREQUENCY (81O)
Pickup Level: .........................................................20.00 to 65.00 Hz in steps of 0.01
Dropout Level:......................................................Pickup - 0.03 Hz
Pickup Time Delay:.............................................0.000 to 6000.000 s in steps of 0.001 s
Dropout Time Delay: .........................................0.000 to 6000.000 s in steps of 0.001 s
Minimum Operating Voltage:........................ 0.000 to 1.250 x VT in steps of 0.001 x VT
Level Accuracy:.................................................... ± 0.001 Hz
Timer Accuracy: ..................................................± 3% of delay setting or ± ¼ cycle (whichever is greater) from
pickup to operate
Operate Time: ......................................................typically 7.5 cycles at 0.1 Hz/s change
typically 7 cycles at 0.3 Hz/s change
typically 6.5 cycles at 0.5 Hz/s change
Typical times are average Operate Times including variables such as frequency change
instance, test method, etc., and may vary by ± 0.5 cycles.
1–16 850 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL
Page 25
CHAPTER 1: INTRODUCTION SPECIFICATIONS
FREQUENCY RATE OF CHANGE (81R)
df/dt Trend:............................................................Increasing, Decreasing, Bi-directional
df/dt Pickup Level: ..............................................0.10 to 15.00 Hz/s in steps of 0.01 Hz/s
df/dt Dropout Level:...........................................96% of Pickup Level
df/dt Level Accuracy: ........................................80 mHz/s or 3.5%, whichever is greater
Minimum Frequency: ........................................20.00 to 80.00 Hz in steps of 0.01 Hz
Maximum Frequency:.......................................20.00 to 80.00 Hz in steps of 0.01 Hz
Minimum Voltage Threshold:.........................0.000 to 1.250 x VT in steps of 0.001 x VT
Minimum Current Threshold:.........................0.000 to 30.000 x CT in steps of 0.001 x CT
Pickup Time Delay: .............................................0.000 to 6000.000 s in steps of 0.001 s
Timer Accuracy:...................................................± 3% of delay setting or ± ¼ cycle (whichever is greater) from
pickup to operate
95% Settling Time for df/dt:...........................< 24 cycles
Operate Time:.......................................................typically 10 cycles at 2 × Pickup
RTD PROTECTION
Pickup:......................................................................1°C to 250°C in steps of 1°C
Hysteresis:..............................................................2°C
Timer Accuracy:...................................................<2 s
Elements: ................................................................Trip and Alarm
FLEXELEMENTS
Number of elements: ........................................8
Operating signal:.................................................Any analog actual value, or two values in a differential mode
Operating signal mode: ...................................Signed, or Absolute value
Operating mode:.................................................Level, Delta
Comparison direction: ......................................Over, Under
Pickup Level:..........................................................-30.000 to 30.000 pu in steps of 0.001 pu
Hysteresis:..............................................................0.1 to 50.0% in steps of 0.1%
Delta dt:...................................................................40 msec to 45 days
Pickup and dropout delays: ...........................0.000 to 6000.000 s in steps of 0.001 s
850 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL 1–17
Page 26
SPECIFICATIONS CHAPTER 1: INTRODUCTION
Control
BREAKER CONTROL
Operation
(Remote Control):.......................................... Asserted Flexlogic Operand, Contact Input, Virtual Input,
Virtual Output, Remote Input
Operation
(Local Control):...............................................PB1, PB2, and PB3
Function:................................................................. Opens/closes the transformer breakers
TRIP BUS
Number of Elements:........................................ 6
Number of Inputs: ..............................................16
Pickup Time Delay:.............................................0.000 to 6000.000 s in steps of 0.001 s
Dropout Time Delay: .........................................0.000 to 6000.000 s in steps of 0.001 s
Operate Time: ......................................................< 2 ms at 60 Hz
Timer Accuracy: ..................................................± 3% of delay time or ± ¼ cycle (whichever is greater) from
pickup to operate
BREAKER FAILURE
Mode:........................................................................ 3-pole
Current Supervision:.......................................... phase and neutral current (fundamental phasor magnitude)
Current Supervision Pickup:........................... 0.050 to 30.000 x CT in steps of 0.001 x CT
Current Supervision Dropout: ....................... 97 to 98% of pickup
Current Supervision Accuracy:..................... For 0.1 to 2.0 x CT: ± 0.5% of reading or ± 0.4% of rated
(whichever is greater),
For > 2.0 x CT: ± 1.5% of reading
Time Delay:............................................................ 0.000 to 6000.000 s in steps of 0.001 s
Timer Accuracy: ..................................................± 3% of delay setting or ± ¼ cycle (whichever is greater) from
pickup to operate
Reset Time: ............................................................< 10 ms typical at 2 x Pickup at 60 Hz
< 12 ms typical at 2 x Pickup at 50 Hz
ARC FLASH SENSOR/FIBER
Number of Point Sensors:...............................4
Detection Radius: ...............................................180 degree
Maximum Fiber Length (Point Sensor):..... 18 ft
Fiber Size: ...............................................................1000 um
Mode:........................................................................ Multi-mode
Connector: .............................................................Small Media Interface (SMI)
Fiber Type:.............................................................. Plastic Optical Fiber
Bend Radius:......................................................... 25 mm maximum
SYNCHROCHECK (25)
Maximum Frequency Difference:................ 0.01 to 5.00 Hz in steps of 0.01 Hz for frequency window of
f
± 5 Hz
Maximum Angle Difference:.......................... 1° to 100° in steps of 1°
Maximum Voltage Difference:...................... 10 to 600000 V in steps of 1 V
Hysteresis for Maximum Frequency
Difference: ........................................................0.01 to 0.10 Hz in steps of 0.01 Hz
Breaker Closing Time:.......................................0.000 to 6000.000 s in steps of 0.001 s
Dead Source Function:..................................... None, LB & DL, DB & LL, DB & DL, DB OR DL, DB XOR DL
Dead/Live Levels for Bus and Line: ............0.00 to 1.50 x VT in steps of 0.01 x VT
nom
1–18 850 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL
Page 27
CHAPTER 1: INTRODUCTION SPECIFICATIONS
AUTORECLOSE (79)
Number of Breakers: .........................................Single breaker application
Number of Poles:.................................................3-pole tripping/autoreclose schemes
Reclose attempts:...............................................Up to 4 before lockout
Blocking:..................................................................Each reclose shot can block IOC, raise TOC Pickup or change
the setting group
Adjustability:..........................................................Current supervision can adjust the maximum number of
shots attempted
Timer Accuracy:...................................................± 3% of delay setting or ± ¼ cycle (whichever is greater) from
pickup to operate
AR CURRENT SUPERVISION AND AR ZONE COORDINATION
Operating Parameter:.......................................Ia, Ib, Ic, In (Fundamental Phasor Magnitude)
PIckup Level:..........................................................0.050 to 30.000 x CT in steps of 0.001 x CT
Dropout Level: ......................................................97 to 98% of Pickup
Level Accuracy:....................................................For 0.1 to 2.0 x CT: ± 0.5% of reading or ± 0.4% of rated,
whichever is greater
For > 2.0 x CT: ± 1.5% of reading
Timer Accuracy:...................................................± 3% of delay setting or ± ¼ cycle, (whichever is greater)
from pickup to operate
Monitoring
HARMONIC DERATING
Timer Accuracy:...................................................±3% of delay setting or ±3 cycle (whichever is greater) from
pickup to operate
TRIP CIRCUIT MONITOR (TCM)
Applicable Voltage: ............................................20 to 250 VDC
Trickle Current:.....................................................1 to 2.5 mA
Timing Accuracy: ................................................± 3 % or ± 4 ms, whichever is greater
CLOSE CIRCUIT MONITOR (CCM)
Applicable Voltage: ............................................20 to 250 VDC
Trickle Current:.....................................................1 to 2.5 mA
Timing Accuracy: ................................................± 3 % or ± 4 ms, whichever is greater
BREAKER ARCING CURRENT
Mode:........................................................................3-pole
Principle:..................................................................accumulates breaker duty (I
Initiation: .................................................................any operand
Alarm Threshold:.................................................0 to 50000 kA2-cycle in steps of 1 kA2-cycle
Timer Accuracy:...................................................± 3% of delay setting or ± ¼ cycle (whichever is greater) from
pickup to operate
BREAKER HEALTH
Timer Accuracy:...................................................± 3% of delay setting or ± 1 cycle (whichever is greater) from
pickup to operate
POWER FACTOR (55)
Switch-In Level:....................................................0.01 Lead to 1 to 0.01 Lag in steps of 0.01
Dropout Level: ......................................................0.01 Lead to 1 to 0.01 Lag in steps of 0.01
Delay:........................................................................0.000 to 6000.000 s in steps of 0.001 s
Minimum Operating Voltage:........................0.00 to 1.25 x VT in steps of 0.01 x VT
Level Accuracy:....................................................± 0.02
Timer Accuracy:...................................................± 3% of delay setting or ± 1¼ cycle (whichever is greater)
from pickup to operate
2
t) during fault
850 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL 1–19
Page 28
SPECIFICATIONS CHAPTER 1: INTRODUCTION
FAULT REPORTS
Number of Reports: ...........................................15
Fault Location Method:....................................Single-ended
Voltage Source: ...................................................Wye-connected VTs, Delta-connected VTs and neutral
voltage, delta-connected VTs and zero-sequence current
(approximation)
Maximum Method Accuracy:........................Fault resistance is zero or fault currents from all line
terminals are in-phase
Relay Accuracy:................................................... ± 1.5% (V > 10 V, I > 0.1 pu)
Other Accuracy Factors: .................................VT%error + user data
CT%error + user data
ZLine%error + user data
Captured Data: ....................................................Pre-fault and fault phasors for all CT and VT banks, pre-fault
and fault trigger operands, user-programmable analog
channels 1 to 32
FAULT LOCATOR
Method: ...................................................................Single-ended
Voltage Source: ...................................................Wye-connected VTs, Delta-connected VTs and neutral
voltage, delta-connected VTs and zero-sequence current
(approximation)
Maximum Accuracy, (only if) : ....................... fault resistance is zero or fault currents from all line
terminals are in-phase
Relay Accuracy:................................................... ± 1.5% (V > 10 V, I > 0.1 pu)
Worst-case Accuracy: ...................................... VT%error + user data
ZLine%error + user data
RELAY ACCURACY%error + (1.5%)
DEMAND
Measured Values:............................................... Phase A/B/C present and maximum current
Measurement Type:........................................... Thermal Exponential, 90% response time (programmed): 5,
10, 15, 20, 30 minutes
Block Interval / Rolling Demand, time interval (programmed):
5, 10, 15, 20, 30 minutes
Current Pickup Level: ........................................ 10 to 10000 in steps of 1 A
Dropout Level:......................................................96-98% of Pickup level
Level Accuracy:.................................................... ± 2%
TAP C H A N G E R FAILU R E
Operating Parameter: ......................................Tap Changer Position
Time Delay:............................................................ 0.00 to 600.00 s
Timer Accuracy: ..................................................±3% of delay setting or ±2 cycles (whichever is greater) from
pickup to operate
HARMONIC DETECTION
Operating Parameter: ......................................Current 2nd, 3rd, 4th, 5th harmonic or THD per phase
Timer Accuracy: ..................................................Harmonics: ±3% of delay setting or ±1/4 cycle (whichever is
greater) from pickup to operate
THD: ±3% of delay setting or ±3 cycles (whichever is greater)
from pickup to operate
1–20 850 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL
Page 29
CHAPTER 1: INTRODUCTION SPECIFICATIONS
Recording
TRANSIENT RECORDER
Default AC Channels:.........................................5 currents + 4 voltages
Configurable Channels: ...................................16 analog and 32 digital channels
Sampling Rate:.....................................................128/c, 64/c, 32/c, 16/c, 8/c
Trigger Source:.....................................................Any element pickup, dropout or operate, digital input or
output change of state, FlexLogic operand
Trigger Position:...................................................0 to 100%
Storage Capability:.............................................Non-volatile memory
EVENT DATA
Number of Records:...........................................1024 (matches the existing Event Recorder)
Data Storage:........................................................Non-volatile memory
Time-tag Accuracy: ...........................................One microsecond
Settings:...................................................................64 Configurable FlexAnalog parameters,
Event Selector
Actuals:....................................................................Selected Event Number,
Timestamp of Selected Event,
Cause of Selected Event,
64 Configurable FlexAnalog values
Commands: ...........................................................None (using existing Clear Event Recorder)
DATA LOGGER
Data Logger channels:.....................................16
Data Logger Rate: ..............................................1 cycle, 1 sec., 30 sec., 1 min., 15 min., 30 min., 1 hour
Inputs:.......................................................................Any analog parameter from the list of available analog
parameters
Data Collection Mode: ......................................Continuous, Triggered
Trigger Source:.....................................................Any digital flag from the list of digital flags
Trigger Position:...................................................0 to 50% in steps of 1%
Channel 1(16) Mode:..........................................Sample, Min, Max, Mean
EVENT RECORDER
Number of events:..............................................1024
Header: ....................................................................relay name, order code, firmware revision
Content:...................................................................any element pickup, any element operate, digital input
change of state, digital output change of state, self-test
events
Data Storage:........................................................non-volatile memory
Time-tag Accuracy: ...........................................to one microsecond
LAST TRIP DATA
Number of Records:...........................................1
Data Storage:........................................................Non-volatile memory
Time-tag Accuracy: ...........................................One microsecond
Actuals:....................................................................Event Number of Last Trip,
Timestamp of Last Trip,
Cause of Last Trip,
64 Configurable FlexAnalog values
Commands: ...........................................................Clear Last Trip Data
850 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL 1–21
Page 30
SPECIFICATIONS CHAPTER 1: INTRODUCTION
User-Programmable Elements
FLEXLOGIC
Lines of code:........................................................ 1024
Supported operations: .....................................NOT, XOR, OR (2 to 16 inputs), AND (2 to 16 inputs), NOR (2 to
16 inputs), NAND (2 to 16 inputs), latch (reset-dominant),
edge detectors, timers
Inputs: ......................................................................any logical variable, contact , or virtual input
Number of timers: .............................................. 32
Pickup delay:.........................................................0 to 60000 (ms, sec., min.) in steps of 1
Dropout delay: .....................................................0 to 60000 (ms, sec., min.) in steps of 1
Timer accuracy: .................................................. ±3% of delay setting or ±¼ cycle (whichever is greater) from
pickup to operate
FLEXELEMENTS
Number of elements:........................................ 8
Operating signal: ................................................Any analog actual value, or two values in a differential mode
Operating signal mode:................................... Signed, or Absolute value
Operating mode:.................................................Level, Delta
Comparison direction:......................................Over, Under
Pickup Level: .........................................................-30.000 to 30.000 pu in steps of 0.001 pu
Hysteresis:.............................................................. 0.1 to 50.0% in steps of 0.1%
Delta dt:...................................................................40 msec to 45 days
Pickup and dropout delays:........................... 0.000 to 6000.000 s in steps of 0.001 s
FLEXSTATES
Number of States: ..............................................256 logical variables grouped under 16 Modbus addresses
Programmability: ................................................ Any FlexLogic operand, any digital input, any virtual input ,
any remote input
NON-VOLATILE LATCHES
Type: .........................................................................Set-dominant or Reset-dominant
Range:......................................................................16 individually programmed
Output:..................................................................... Stored in non-volatile memory
Execution sequence:......................................... As input prior to protection, control and FlexLogic
FLEXCURVES
Number: ..................................................................4 (A through D)
Reset points:.......................................................... 40 (0.00 to 0.98 x pickup)
Operate points:.................................................... 80 (1.03 to 20.0 x pickup)
Time delay: ............................................................0 to 100000 ms in steps of 1 ms
Saturation level: ..................................................20 times the pickup level
USER-PROGRAMMABLE LEDS
Number: ..................................................................12
Programmability: ................................................ any logic variable, contact, or virtual input
Reset mode: .......................................................... self-reset or latched
USER-PROGRAMMABLE PUSHBUTTONS
Number of pushbuttons:................................. 3
Mode:........................................................................ Self-reset, latched
Display message:................................................ 1 line of 25 characters maximum
Dropout timer:...................................................... 0.000 to 60.000 s in steps of 0.005
Auto-reset timer:................................................. 0.2 to 600.0 s in steps of 0.1
Hold timer: .............................................................0.0 to 10.0 s in steps of 0.1
Timer accuracy: .................................................. ±3% of delay setting or ±¼ cycle (whichever is greater) from
pickup to operate
1–22 850 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL
Page 31
CHAPTER 1: INTRODUCTION SPECIFICATIONS
Metering
RMS PARAMETERS
Currents
Parameters: ...........................................................Phase A, B, C, Neutral, Ground
Accuracy:................................................................± 0.25% of reading or ± 0.2% of rated (whichever is greater)
from 0.1 to 2.0 x CT
± 1% of reading > 2.0 x CT
Voltages
Parameters: ...........................................................Wye VTs: A-n, B-n, C-n, A-B, B-C, C-A, Average Phase, Neutral
and Residual
Delta VTs: A-B, B-C, C-A, Neutral and Residual
Accuracy:................................................................± 0.5% of reading from 15 to 208 V
± 1% for open Delta connections
Real Power (Watts)
Range: ......................................................................-214748364.8 kW to 214748364.7 kW
Parameters: ...........................................................3-phase; per phase if VT is Wye
Accuracy:................................................................± 1.0% of reading or 0.2 kW (whichever is greater) at -0.8 <
PF ≤ -1.0 and 0.8 < PF < 1.0
Reactive Power (Vars)
Range: ......................................................................-214748364.8 kvar to 214748364.7 kvar
Parameters: ...........................................................3-phase; per phase if VT is Wye
Accuracy:................................................................± 1.0% of reading or 0.2 kvar (whichever is greater) at -0.2 <
PF ≤ 0.2
Apparent Power (VA)
Range: ......................................................................0 kVA to 214748364.7 kVA
Parameters: ...........................................................3-phase; per phase if VT is Wye
Accuracy:................................................................± 1.0% of reading or 0.2 kVA (whichever is greater)
Power Factor
Parameters: ...........................................................3-phase; per phase if VT is Wye
Range: ......................................................................0.01 Lag to 1.00 to 0.01 Lead
Accuracy:................................................................± 0.02 for 50 Hz and 60 Hz; ± 0.05 for 25 Hz
Watt-hours (positive and negative)
Range: ......................................................................- 2147483.648 MWh to 2147483.647 MWh
Parameters: ...........................................................3-phase only
Update Rate: .........................................................50 ms
Accuracy:................................................................± 2.0% of reading
Var-hours (positive and negative)
Range: ......................................................................- 2147483.648 Mvarh to 2147483.647 Mvarh
Parameters: ...........................................................3-phase only
Update Rate: .........................................................50 ms
Accuracy:................................................................± 2.0% of reading
PHASORS
Current
Parameters: ...........................................................Phase A, B, C, Neutral and Ground
Magnitude Accuracy:........................................± 0.5% of reading or ± 0.2% of rated (whichever is greater)
from 0.1 to 2.0 x CT
± 1.0% of reading > 2.0 x CT
Angle Accuracy:...................................................2° (3° for 25 Hz)
850 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL 1–23
Page 32
SPECIFICATIONS CHAPTER 1: INTRODUCTION
NOTE
Voltages
Parameters:...........................................................Wye VTs: A-n, B-n, C-n, A-B, B-C, C-A, Average Phase, Neutral
and Residual;
Delta VTs: A-B, B-C, C-A, Neutral and Residual
Magnitude Accuracy:........................................ ± 0.5% of reading from 15 to 208 V;
± 1% for open Delta connections;
± 10% for 25 Hz with 150 V <V < 208V
Angle Accuracy:................................................... 0.5° (15 V <V < 208 V)
FREQUENCY
Range:......................................................................2.000 to 90.000 Hz
Accuracy at: ..........................................................V = 15 to 208 V: ± 0.01 Hz (input frequency 15 to 70 Hz);
I = 0.1 to 0.4 x CT: ± 0.020 Hz (input frequency 15 to 70 Hz);
I > 0.4 x CT: ± 0.01 Hz (input frequency 15 to 70 Hz)
CURRENT AND VOLTAGE HARMONICS
Parameters:...........................................................Magnitude of each harmonic and THD
Range:...................................................................... 2
nd
to 25th harmonic: per-phase displayed as % of f1
fundamental frequency
THD: per-phase displayed as % of f
1
DEMAND
Measured Values:............................................... Phase A/B/C present and maximum current
Measurement Type:........................................... Thermal Exponential, 90% response time (programmed): 5,
10, 15, 20, 30 minutes
Block Interval / Rolling Demand, time interval (programmed):
5, 10, 15, 20, 30 minutes
Current Pickup Level: ........................................ 10 to 10000 in steps of 1 A
Dropout Level:......................................................96-98% of Pickup level
Level Accuracy:.................................................... ± 2%
NOTE:
Factory tested at 25°C
1–24 850 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL
Page 33
CHAPTER 1: INTRODUCTION SPECIFICATIONS
Inputs
AC CURRENTS
CT Rated Primary: ...............................................1 to 12000 A
CT Rated Secondary:.........................................1 A or 5 A based on relay ordering
Burden: ....................................................................< 0.2 VA at rated secondary
Conversion Range: .............................................Standard CT: 0.02 to 46 x CT rating RMS symmetrical
Sensitive Ground CT (5A/1A): 0.002 to 4.6 x CT rating RMS
symmetrical
Short Term CT Withstand:...............................1 second at 100 x rated current
2 seconds at 40 x rated current
continuous at 3 x rated current
AC VOLTAGE
VT Range:................................................................10 to 260 V
Nominal Frequency: ..........................................20 to 65 Hz
Burden: ....................................................................<0.25 VA at 120 V
Conversion Range: .............................................1 to 275 V
Voltage Withstand: ............................................continuous at 260 V to neutral
1 min/hr at 420 V to neutral
ANALOG INPUTS
Current Input (mA DC):......................................0 to 1mA, 0 to 5mA, 0 to 10mA, 0 to 20mA, 4 to 20mA
(configurable)
Input Impedance:................................................375 Ω ± 10%
Conversion range: ..............................................0 to +21 mA DC
Accuracy:................................................................± 1% of full scale,
Type:..........................................................................Passive
Analog Input Supply: .........................................+24 V DC at 100 mA max.
Sampling Interval: ..............................................50 ms
FREQUENCY
Nominal frequency setting:............................50 Hz, 60 Hz
Sampling frequency: .........................................64 samples per power cycle
128 samples per power cycle (available for transient
recorder
Tracking frequency range: .............................3 to 72 Hz
ARC FLASH SENSOR/FIBER
Number of Point Sensors: ...............................4
Detection Radius:................................................180 degree
Maximum Fiber Length (Point Sensor): .....18 ft
Fiber Size:................................................................1000 um
Mode:........................................................................Multi-mode
Connector:..............................................................Small Media Interface (SMI)
Fiber Type:..............................................................Plastic Optical Fiber
Bend Radius: .........................................................25 mm maximum
CONTACT INPUTS
Number of Inputs:...............................................Based on relay ordering
Type:..........................................................................Wet or Dry
Wet Contacts:.......................................................300 V DC maximum
Selectable thresholds: ......................................17, 33, 84, 166 VDC
Tolerance:...............................................................±20%
Recognition time:................................................1 ms (typical)
Debounce time: ...................................................0.0 to 16.0 ms in steps of 0.5 ms
Continuous current draw (burden): ............2 mA
850 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL 1–25
Page 34
SPECIFICATIONS CHAPTER 1: INTRODUCTION
CLOCK
Setup: .......................................................................Date and T ime, Daylight Saving Time, UTC (Coordinated
Universal Time)
Backup Retention: .............................................. 1 hour
IRIG-B INPUT
Auto-detect: ..........................................................DC and AM
Amplitude Modulation:..................................... 1 V to 10 V pk-to-pk
DC Shift:................................................................... TTL
Input Impedance: ...............................................40 kΩ
Isolation: .................................................................2 kV
RTD INPUTS
Types (3-wire):.......................................................100 Ω Platinum, 120 Ω Nickel, 100 Ω Nickel, 10 Ω Copper
Sensing current: .................................................. 5 mA
Range:......................................................................–40 to +250°C (-40 to +482°F)
Accuracy:................................................................±2°C (±4°F)
Isolation: .................................................................36 V pk-pk (a group of RTDs to ground)
Lead Resistance:................................................. 25 Ohms max. per lead for platinum or nickel and 3 Ohms
max. per lead for copper RTDs
OHMS INPUT
Type: .........................................................................Resistance (ohms)
Range:......................................................................0 to 500 Ω or 0.5 to 5.1 kΩ
Bias current:.......................................................... 1.9 mA through the full range
Accuracy:................................................................ ± 1% (of full scale based on input range)
1–26 850 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL
Page 35
CHAPTER 1: INTRODUCTION SPECIFICATIONS
Outputs
ANALOG OUTPUTS
Range (configurable):........................................0 to 1mA, 0 to 5mA, 0 to 10mA, 0 to 20mA, 4 to 20mA
Max. load resistance: ........................................10 kΩ @ 1 mA,
600 Ω @ 20 mA
Accuracy:................................................................± 1% of full scale
Isolation:.................................................................. 500V DC for one minute (functional isolation between analog
inputs and output group; and each group of chassis)
Driving Signal:.......................................................any Analog quantity
Sampling Interval: ..............................................100 ms
Upper and lower limit
(for the driving signal):................................-90 to 90 pu in steps of 0.001
TRIP/CLOSE OUTPUT RELAYS
(Relays #1 and #2 from Slot F, Relays #9 and #10 from Slot G)
Type:..........................................................................FORM-A
Configuration:.......................................................2 (two) electromechanical
Contact material: ................................................silver-alloy
Operate time:........................................................<8 ms
Continuous current:...........................................10 A
Make and carry for 0.2s:..................................30 A per ANSI C37.90
Break (DC inductive, L/R=40 ms):.................24 V / 1 A
48 V / 0.5 A
125 V / 0.3 A
250 V / 0.2 A
Break (DC resistive):............................................24 V / 10 A
48 V / 6 A
125 V / 0.5 A
250 V / 0.3 A
Break (AC inductive):..........................................720 VA @ 250 VAC Pilot duty A300
Break (AC resistive):............................................277 VAC / 10 A
Operation Mode:..................................................Self-Reset , Latched, Pulsed, Non-Failsafe, Failsafe
FORM-A VOLTAGE MONITOR
Applicable voltage:.............................................20 to 250 VDC
Trickle current:......................................................1 to 2.5 mA
Timer acurracy: ...................................................± 3% of operate time or ± 1/4 cycle (whichever is greater)
850 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL 1–27
Page 36
SPECIFICATIONS CHAPTER 1: INTRODUCTION
AUXILIARY OUTPUT RELAYS
(Relays #3, #4 and the Critical Failure Relay from Slot F, and Relays #11, #12 and #16 from
Slot G)
Type: .........................................................................FORM-C
Configuration: ......................................................electromechanical
Contact material:................................................silver-alloy
Operate time:........................................................ <8 ms
Continuous current:........................................... 10 A
Make and carry for 0.2s:.................................. 30 A per ANSI C37.90
Break (DC inductive, L/R=40 ms):.................24 V / 1 A
48 V / 0.5 A
125 V / 0.3 A
250 V / 0.2 A
Break (DC resistive): ...........................................24 V / 10 A
48 V / 6 A
125 V / 0.5 A
250 V / 0.3 A
Break (AC inductive):.......................................... 720 VA @ 250 VAC Pilot duty A300
Break (AC resistive):............................................ 277 VAC / 10 A
Operation Mode: .................................................Self-Reset, Latched, Pulsed, Non-Failsafe, Failsafe
Breaking Capacity:.............................................For Form-C relays the following ratings are applied to meet
UL508 requirements: 1 second “ON”/10 seconds “OFF” per
output relay at maximum rating
FASTPATH:
For 2 IO_A module configuration the following ratings are applied to meet UL508
requirements: 1 second “on”/ 10 seconds “off” per output relay at max rating.
PULSED OUTPUTS
Mode:........................................................................ 3-phase positive and negative active energy measurement ,
Principle: .................................................................Pulsed output is energized for one second and then de-
Power Supply
POWER SUPPLY
Nominal DC Voltage:.........................................125 to 250 V
Minimum DC Voltage:.......................................88 V
Maximum DC Voltage:...................................... 300 V
Nominal AC Voltage: ......................................... 100 to 240 V at 50/60 Hz
Minimum AC Voltage: ....................................... 88 V at 50 to 60 Hz
Maximum AC Voltage:......................................265 V at 50 to 60 Hz
Voltage loss ride through:...............................20 ms duration
POWER SUPPLY (FOR “L” DC ONLY OPTION)
Nominal DC Voltage:.........................................24 V to 48 V
Minimum DC Voltage:.......................................20 V
Maximum DC Voltage:...................................... 60 V
POWER CONSUMPTION
Typical:..................................................................... 20 W / 40 VA
Maximum: ..............................................................34 W / 70 VA
3-phase positive and negative reactive energy
measurements
energized for one second after the programed energy
increment.
1–28 850 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL
Page 37
CHAPTER 1: INTRODUCTION SPECIFICATIONS
Communications
ETHERNET – BASE OFFERING
Modes:......................................................................10/100 Mbps
One Port: .................................................................RJ45
Protocol: ..................................................................Modbus TCP
ETHERNET – CARD OPTION
Modes:......................................................................100 MB
Two Ports:...............................................................ST (with this option both enabled ports are on the
communications card; the Ethernet port located on the base
CPU is disabled)
Protocols:................................................................Modbus TCP, DNP3.0, IEC60870-5-104, IEC 61850, IEC 61850
GOOSE, IEEE 1588, SNTP, IEC 62439-3 clause 4 (PRP)
Wavelength: ..........................................................1310nm
Typical link distance: .........................................4 km
USB
Standard specification: ....................................Compliant with USB 2.0
Protocols:................................................................Modbus TCP, TFTP
SERIAL
RS485 port: ............................................................Isolated
Baud rates:.............................................................Supports 9600, 19200, 38400, 57600, and 115200 kbps
Response time:.....................................................10 ms typical
Parity:........................................................................None, Odd, Even
Protocol: ..................................................................Modbus RTU, DNP 3.0, IEC 60870-5-103
Maximum distance: ...........................................1200 m (4000 feet)
Isolation:..................................................................2 kV
WIFI
Standard specification: ....................................IEEE802.11bgn
Range: ......................................................................30 ft (direct line of sight)
850 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL 1–29
Page 38
SPECIFICATIONS CHAPTER 1: INTRODUCTION
Testing & Certification
APPROVALS
Applicable Council Directive According to
CE compliance Low voltage directive EN60255-5 / EN60255-27
EMC Directive EN60255-26
R&TTE Directive ETSI EN300 328 ETSI EN301 489-1 ETSI
North America cULus UL508
ISO Manufactured under a registered
quality program
TESTING AND CERTIFICATION
Test Reference Standard Test Level
Dielectric voltage withstand EN60255-5/IEC60255-27 2.3 kV
Impulse voltage withstand EN60255-5/IEC60255-27 5 kV
Insulation resistance IEC60255-5/IEC60255-27 500 VDC (test level)
Damped Oscillatory IEC60255-22-1 2.5 kV CM, 1 kV DM, 1 MHz
Electrostatic Discharge EN61000-4-2/IEC60255-22-2 Level 4
RF immunity EN61000-4-3/IEC60255-22-3 Level 3
Fast Transient Disturbance EN61000-4-4/IEC60255-22-4 Class A and B
Surge Immunity EN61000-4-5/IEC60255-22-5 Level 3
Conducted RF Immunity EN61000-4-6/IEC60255-22-6 Level 3
Harmonics and Interharmonics IEC61000-4-13 Class 3
Power Frequency Immunity IEC60255-22-7 Class A & B
Voltage interruption and Ripple DCIEC60255-11 PQT levels based on
Radiated & Conducted Emissions CISPR11 /CISPR22/ IEC60255-25 Class A
Sinusoidal Vibration IEC60255-21-1 Class 1
Shock & Bump IEC60255-21-2 Class 1
Seismic IEC60255-21-3 Class 2
Power magnetic Immunity IEC61000-4-8 Level 5
Pulse Magnetic Immunity IEC61000-4-9 Level 4
Damped Magnetic Immunity IEC61000-4-10 Level 4
Voltage Dip & interruption IEC61000-4-11 N/A (DC PSU)
Harmonic Immunity IEC61000-4-13 Class 3
Conducted RF Immunity 0-150kHz IEC61000-4-16 Not CE requirement.
Ingress Protection IEC60529 IP54 front
Environmental (Cold) IEC60068-2-1 -40C 16 hrs
Environmental (Dry heat) IEC60068-2-2 85C 16hrs
Relative Humidity Cyclic IEC60068-2-30 6 day humidity variant 2
EFT IEEE/ANSI C37.90.1 4kV, 5 kHz
EN61000-6-2 / EN61000-6-4
EN301-489-17
C22.2.No 14
ISO9001
IEC61000-4-29,
IEC61000-4-11 and
IEC61000-4-17
The test will be done at a
later date.
1–30 850 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL
Page 39
CHAPTER 1: INTRODUCTION SPECIFICATIONS
Damped Oscillatory IEEE/ANSI C37.90.1 2.5 kV, 1 MHz
Dielectric Between contacts IEEE C37.90 1500Vrms
Make and Carry IEEE C37.90 30A /200 ops
Electrostatic Discharge (ESD) IEEE/ANSIC 37.90.3 8kV CD/ 15 kV AD
Product Safety IEC60255-27 As per Normative sections
Rated Burden, IEC60255-1 Sec 6.10
Contact Performance IEC60255-1 Sec 6.11
Safety UL508 e57838 NKCR
UL C22.2-14 e57838 NKCR7
Physical
DIMENSIONS
Size: ...........................................................................Refer to Chapter 2
Weight:..................................................................... 9 kg [20.0 lbs]
Environmental
Ambient temperatures:
Storage/Shipping: -40C to 85C
Operating: -40C to 60C
Humidity: Operating up to 95% (non condensing) @ 55C (As per
Altitude: 2000m (max)
Pollution Degree: II
Overvoltage Category: II
Ingress Protection: IP54 Front
Insulation Class: 1
IEC60068-2-30 Variant 2, 6 days)
850 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL 1–31
Page 40
CAUTIONS AND WARNINGS CHAPTER 1: INTRODUCTION
Cautions and Warnings
Before attempting to install or use the device, review all safety indicators in this document
to help prevent injury, equipment damage, or downtime.
Safety words and definitions
The following symbols used in this document indicate the following conditions
DANGER:
Indicates a hazardous situation which, if not avoided, will result in death or serious
injury.
IMPORTANT:
CAUTION:
FASTPATH:
CAUTION:
CAUTION:
CAUTION:
Indicates a hazardous situation which, if not avoided, could result in death or serious
injury.
Indicates a hazardous situation which, if not avoided, could result in minor or
moderate injury.
Indicates practices not related to personal injury.
General Cautions and Warnings
The following general safety precautions and warnings apply.
Before attempting to use the equipment, it is important that all danger and caution
indicators are reviewed.
If the equipment is used in a manner not specified by the manufacturer or functions
abnormally, proceed with caution. Otherwise, the protection provided by the
equipment may be impaired and can result in impaired operation and injury.
Hazardous voltages can cause shock, burns or death.
Installation/service personnel must be familiar with general device test practices,
electrical awareness and safety precautions must be followed.
Before performing visual inspections, tests, or periodic maintenance on this device or
associated circuits, isolate or disconnect all hazardous live circuits and sources of
electric power.
Failure to shut equipment off prior to removing the power connections could expose
you to dangerous voltages causing injury or death.
Ensure that all connections to the product are correct so as to avoid accidental risk of
shock and/or fire, for example from high voltage connected to low voltage terminals.
Follow the requirements of this manual, including adequate wiring size and type,
terminal torque settings, voltage, current magnitudes applied, and adequate isolation/
clearance in external wiring from high to low voltage circuits.
Use the device only for its intended purpose and application.
1–32 850 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL
Page 41
CHAPTER 1: INTRODUCTION CAUTIONS AND WARNINGS
Ensure that all ground paths are un-compromised for safety purposes during device
operation and service.
All recommended equipment that should be grounded and must have a reliable and
un-compromised grounding path for safety purposes, protection against
electromagnetic interference and proper device operation.
Equipment grounds should be bonded together and connected to the facility’s main
ground system for primary power.
Keep all ground leads as short as possible.
In addition to the safety precautions mentioned all electrical connections made must
respect the applicable local jurisdiction electrical code.
It is recommended that a field external switch, circuit breaker be connected near the
equipment as a means of power disconnect. The external switch or circuit breaker is
selected in accordance with the power rating.
This product itself is not Personal Protective Equipment (PPE). However, it can be used
in the computation of site specific Arc Flash analysis when the arc flash option is
ordered. If a new appropriate Hazard Reduction Category code for the installation is
determined, user should follow the cautions mentioned in the arc flash installation
section.
follow the cautions mentioned in the arc flash installation section.If a new appropriate Har
The critical fail relay must be connected to annunciate the status of the device when
the Arc Flash option is ordered.
Ensure that the control power applied to the device, the AC current, and voltage input
match the ratings specified on the relay nameplate. Do not apply current or voltage in
excess of the specified limits.
Only qualified personnel are to operate the device. Such personnel must be thoroughly
familiar with all safety cautions and warnings in this manual and with applicable
country, regional, utility, and plant safety regulations.
Hazardous voltages can exist in the power supply and at the device connection to
current transformers, voltage transformers, control, and test circuit terminals. Make
sure all sources of such voltages are isolated prior to attempting work on the device.
Hazardous voltages can exist when opening the secondary circuits of live current
transformers. Make sure that current transformer secondary circuits are shorted out
before making or removing any connection to the current transformer (CT) input
terminals of the device.
For tests with secondary test equipment, ensure that no other sources of voltages or
currents are connected to such equipment and that trip and close commands to the
circuit breakers or other switching apparatus are isolated, unless this is required by
the test procedure and is specified by appropriate utility/plant procedure.
When the device is used to control primary equipment, such as circuit breakers,
isolators, and other switching apparatus, all control circuits from the device to the
primary equipment must be isolated while personnel are working on or around this
primary equipment to prevent any inadvertent command from this device.
Use an external disconnect to isolate the mains voltage supply.
850 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL 1–33
Page 42
CAUTIONS AND WARNINGS CHAPTER 1: INTRODUCTION
CAUTION:
FASTPATH:
FASTPATH:
LED transmitters are classified as IEC 60825-1 Accessible Emission Limit (AEL) Class
1M. Class 1M devices are considered safe to the unaided eye. Do not view directly with
optical instruments.
To ensure the settings file inside the relay is updated, wait 30 seconds after a setpoint
change before cycling power.
This product is rated to Class A emissions levels and is to be used in Utility, Substation
Industrial environments. Not to be used near electronic devices rated for Class B levels.
1–34 850 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL
Page 43
CHAPTER 1: INTRODUCTION MUST-READ INFORMATION
Must-read Information
The following general statements apply and are repeated in the relevant sections of the
manual.
FASTPATH:
• WiFi and USB do not currently support CyberSentry security. For this reason WiFi is
disabled by default if the CyberSentry option is purchased. The user can enable WiFi,
but be aware that doing so violates the security and compliance model that
CyberSentry is supposed to provide.
• Before upgrading firmware, it is very important to save the current 850 settings to a
file on your PC. After the firmware has been upgraded, it is necessary to load this file
back into the 850.
• The SNTP, IRIG-B and PTP settings take effect after rebooting the relay.
• Commands may be issued freely through other protocols than Modbus (i.e., DNP, IEC
104, and, IEC 61850) without user authentication or encryption of data taking place,
even if the relay has the advanced security feature enabled.
• Note that the factory role password may not be changed.
• In 850 both DNP and IEC104 protocol can work at the same time, but the user has to
consider that there is only one point map. So, both protocols use the same configured
points.
• The 52b contact is closed when the breaker is open and open when the breaker is
closed.
• The Phase Directional element responds to the forward load current. In the case of a
following reverse fault, the element needs some time – in the order of 8 ms – to
change the directional signal. Some protection elements such as Instantaneous
Overcurrent may respond to reverse faults before the directional signal has changed.
A coordination time of at least 10 ms must therefore be added to all the instantaneous
protection elements under the supervision of the Phase Directional element . If current
reversal is a concern, a longer delay – in the order of 20 ms – is needed.
• The same curves used for the time overcurrent elements are used for Neutral
Displacement. When using the curve to determine the operating time of the Neutral
Displacement element, substitute the ratio of neutral voltage to Pickup level for the
current ratio shown on the horizontal axis of the curve plot.
• If the 3-phase VT uses a delta connection and FREQUENCY INPUT is set to J2-3VT, the
positive sequence voltage is used as the supervision voltage. In such condition, the
true supervision level is internally changed to 1/sqrt(3) of the user setting since the
base of VT here is the phase-phase voltage.
• To monitor the trip coil circuit integrity, use the relay terminals “FA_1 NO” and “FA_1
COM” to connect the Trip coil, and provide a jumper between terminals “FA_1 COM”
and “FA_1 OPT/V” voltage monitor).
• In Power factor monitoring, SWITCH-IN and SWITCH-OUT are mutually exclusive
settings.
• The relay is not approved as, or intended to be, a revenue metering instrument. If used
in a peak load control system, the user must consider the accuracy rating and method
of measurement employed, and the source VTs and CTs, in comparison with the
electrical utility revenue metering system.
• In bulk oil circuit breakers, the interrupting time for currents is less than 25% of the
interrupting rating and can be significantly longer than the normal interrupting time.
• For future reference, the user is advised to take a printout of the conversion report
immediately after the conversion. All conversion reports are removed and become
inaccessible if the user closes or re-launches the 8 Series Setup software.
850 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL 1–35
Page 44
FOR FURTHER ASSISTANCE CHAPTER 1: INTRODUCTION
For Further Assistance
For product support, contact the information and call center as follows:
GE Grid Solutions
650 Markland Street
Markham, Ontario
Canada L6C 0M1
Worldwide telephone: +1 905 927 7070
Europe/Middle East/Africa telephone: +34 94 485 88 54
North America toll-free: 1 800 547 8629
Fax: +1 905 927 5098
Worldwide e-mail: multilin.tech@ge.com
Europe e-mail: multilin.tech.euro@ge.com
Website: http://www.gegridsolutions.com/multilin/
1–36 850 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL
Page 45
GE
Grid Solutions
850 Feeder Protection System
Chapter 2: Installation
Mechanical Installation
Installation
This section describes the mechanical installation of the system, including dimensions for
mounting and information on module withdrawal and insertion.
Product Identification
The product identification label is located on the side panel of the 850. This label indicates
the product model, serial number, and date of manufacture.
Figure 2-1: Product Label
850 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL 2–1
Page 46
MECHANICAL INSTALLATION CHAPTER 2: INSTALLATION
>@
>@
>@
>@
>@
>@
Dimensions
The dimensions (in inches [millimeters]) of the 850 are shown below. Additional dimensions
for mounting, and panel cutouts, are shown in the following sections.
Figure 2-2: 850 Dimensions
Mounting
The unit can be mounted two ways: standard panel mount or optional tab mounting, if
required.
• Standard panel mounting:
From the front of the panel, slide the empty case into the cutout. From the rear of the
panel, screw the case into the panel at the 8 screw positions (see figures in Standard
panel mount section).
• Optional tab mounting:
The “V” tabs are located on the sides of the case and appear as shown in the
following figure. Use needle nose pliers to bend the retaining "V" tabs outward to
about 90°. Use caution and do not bend and distort the wall of the enclosure adjacent
to the tabs. The relay can now be inserted and can be panel wired.
2–2 850 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL
Page 47
CHAPTER 2: INSTALLATION MECHANICAL INSTALLATION
Needle nose pliers
Figure 2-3: “V” Tabs Located on Case Side
Standard Panel Mount The standard panel mount and cutout dimensions are illustrated below.
CAUTION:
To avoid the potential for personal injury due to f ire hazards, ensure the unit is
mounted in a safe location and/or within an appropriate enclosure.
Figure 2-4: Standard panel mount
850 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL 2–3
Page 48
MECHANICAL INSTALLATION CHAPTER 2: INSTALLATION
Figure 2-5: Panel cutout dimensions
FASTPATH:
Draw-out Unit Withdrawal and Insertion
Unit withdrawal and insertion may only be performed when control power has been
removed from the unit.
Turn off control power before drawing out or re-inserting the relay to prevent maloperation.
Follow the steps outlined in the diagrams below to insert and withdraw the Draw-out unit.
2–4 850 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL
Page 49
CHAPTER 2: INSTALLATION MECHANICAL INSTALLATION
67(3
6&$/(
67(3
+$1'/(72%(/,)7('72
326,7,21:+,/(6/,',1*
'5$:28781,7,172
&$37,9(81,7
67(3
0$,17$,1+$1'/(/,)7('326,7,21
817,/'5$:28781,7
,6)8//<,16(57('
386++$1'/('2:1
$1'7,*+7(17+(6&5(:
:,7+,1/%72548(
+$1'/(6+28/'%()/86+
:,7+)52173$1(/685)$&(
Figure 2-6: Unit withdrawal and insertion diagram
Removable Power Supply
Follow the steps outlined in the Insert or Remove Power Supply diagram to insert (#1) or
remove (#2) the power supply from the unit.
850 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL 2–5
Page 50
MECHANICAL INSTALLATION CHAPTER 2: INSTALLATION
Figure 2-7: Insert or Remove the Power Supply
Figure 2-8: Unlatch Module (location is marked by arrow)
2–6 850 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL
Page 51
CHAPTER 2: INSTALLATION MECHANICAL INSTALLATION
Removable Magnetic Module
Follow the steps outlined in the diagram below to insert or remove the magnetic module
from the unit.
Figure 2-9: Insert or Remove the Magnetic Module
850 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL 2–7
Page 52
ELECTRICAL INSTALLATION CHAPTER 2: INSTALLATION
Arc Flash Sensor
The Arc Flash sensor houses the fiber optics and metal membrane that are used to detect
the arc flash. Two mounting screw holes are provided to affix the sensors to the panel.
Figure 2-10: AF Sensor -front, side and top view
CAUTION:
If the 8 Series is used in the computation for reducing the Hazard Reduction Category
code, operands for sensor failures must be assigned to an auxiliary output relay which
must be connected into the control logic of the breaker equipment to ensure safe
operations when the output relay is asserted. In the event of this assertion, the Hazard
Reduction Category code cannot be maintained unless backup protection is continuing
to maintain it.
Electrical Installation
Typical Wiring Diagram
The following illustrates the electrical wiring of the Draw-out unit.
2–8 850 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL
Page 53
J1 J2 J3 J4 J5 J6 J7 J8 K7 K8 J9
J10
J11
J12
J13
J14 A1 A2 A3
LINE
NEUTRAL
GROUND
TRIP
CLOSE
AUXILIARY
AUXILIARY
CRITICAL
FAILURE
RELAY
F3
F4
F5
F6
F7
F8
F9
F10
F11
F12
F22
F23
F24
V
V
F13
F14
F15
F16
F17
F18
F19
F20
DIGITAL INPUTS
DIGITAL INPUT 1
DIGITAL INPUT 2
DIGITAL INPUT 3
DIGITAL INPUT 4
DIGITAL INPUT 5
DIGITAL INPUT 6
DIGITAL INPUT 7
COMMON
OUTPUT RELAYS
F1
F2
52
OUTPUT CONTACTS
SHOWN WITH NO
CONTROL POWER
SEE TRIP AND
CLOSE COIL
MONITORING
IN INSTRUCTION
MANUAL
BUS
GROUND
BUS
GND
STUD
PWR SUPPLY
892771A6.cdr
USB
PERSONAL
COMPUTER
ETHERNET
CURRENT INPUTS
VOLTAGE INPUTS
SLOT F: I/O_A
[BACK PANEL ETHERNET PORT RJ45 OR ST]
[FRONT PANEL LOCAL
PROGRAMMING PORT]
IRIG-B
COMMUNICATIONS
RS485
CONTROL
POWER
TRI
CIRCUIT
P
CLOSE
CIRCUIT
L
O
A
D
SLOTS J&K
SLOT A
SLOT D: COMMUNICATIONS
USB
TYPE B
Front Panel
ETHERNET
RJ45
Rear Panel
PERSONAL
COMPUTER
VAV
B
V
C
VAV
B
V
C
D1
D2
D5
D4D3 D6
COM
D7
D8 D9
D10
RESERVED
CAN
PHASE A PHASE B PHASE C
GROUND
I
B
N
I
C
IsgI
G
I
A
N
N
ETHERNET
FIBER1STFIBER2
ST
OPEN DELTA VT CONNECTION
J9 J10 J11 J12 J13 J14
850 Feeder Protection System
TRIP
COIL
CLOSE
COIL
52a
52b
SEE GROUND
INPUT WIRING IN
INSTRUCTION MANUAL
WYE VT
CONNECTION
N
N
F21
+24 V
AUXILIARY
AUXILIARY
AUXILIARY
G3
G4
G5
G6
G7
G8
G9
G10
G11
G12
G22
G23
G24
G13
G14
G15
G16
G17
G18
G19
G20
DIGITAL INPUTS
DIGITAL INPUT 1
DIGITAL INPUT 2
DIGITAL INPUT 3
DIGITAL INPUT 4
DIGITAL INPUT 5
DIGITAL INPUT 6
DIGITAL INPUT 7
COMMON
OUTPUT RELAYS
G1
G2
SLOT G or H: I/O_A (OPTIONAL)
G21
+24 V
AUXILIARY
AUXILIARY
ACCESS POINT
WIFI
G1 G2 G3 G4 G5 G6 G7 G8 G9
G10
G11
G12
G13
G14 G15
G16 G17 G18 G19 G20 G21 G22 G23 G24
DCmA I/O
ANALOG OUTPUT
ANALOG INPUT
RTD
11
23 4567 11
23 4
SHIELD
SHIELD
SHIELD
RETURN
HOT
COMP
RESERVED
RESERVED
RETURN
RETURN
Phase A Amps
Phase B Amps
Phase C Amps
Ground Amps
Phase A Volts
Phase B Volts
Phase C Volts
Common
ANY MEASURED OR METERED
ANALOG PARAMETER
H1
H2
H3
H4
H5
H6
H7
H8
H9
H10
H11
H12
8
9
10
CH 1
CH 2
CH 3
CH 4
FIBER INPUT 3
FIBER INPUT 4
FIBER INPUT 1
FIBER INPUT 2
ARC FLASH
SLOT H: I/O_F (OPTIONAL)
RESERVED
RESERVED
RESERVED
J16
J15
V
X
V
X
SEE VT WIRING IN
INSTRUCTION MANUAL
VT
AUX
CHAPTER 2: INSTALLATION ELECTRICAL INSTALLATION
Figure 2-11: Typical wiring diagram – Draw-out unit
850 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL 2–9
Page 54
ELECTRICAL INSTALLATION CHAPTER 2: INSTALLATION
SCREW
WASHER
LOWER
TERMINAL
DIVIDER
TERMINAL
BLOCK
1
2
3
Terminal Identification
All the terminal strips are labeled with a slot letter to identify the module slot position and
numbers to identify the terminals within the module.
CAUTION:
FASTPATH:
Make sure that the first letter on the terminal strip corresponds to the slot location
identified on the chassis silkscreen.
Terminal Connections
When installing two lugs on one terminal, both lugs must be “right side up” as shown in the
picture below. This is to ensure the adjacent lower terminal block does not interfere with
the lug body.
Figure 2-12: Orient the Lugs Correctly
Figure 2-13: Correct Installation Method
2–10 850 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL
Page 55
CHAPTER 2: INSTALLATION ELECTRICAL INSTALLATION
Figure 2-14: INCORRECT INSTALLATION METHOD (lower lug reversed)
A broad range of applications are available for the 850 relays. As such, it is not possible to
present typical connections for all possible schemes. The information in this section covers
the important aspects of interconnections, in the general areas of instrument transformer
inputs, other inputs, outputs, communications and grounding. The figure below shows the
rear terminal layout of the 850
Platform.
850 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL 2–11
Page 56
ELECTRICAL INSTALLATION CHAPTER 2: INSTALLATION
Figure 2-15: Rear Terminal Layout of the 8 Series Platform
Table 2-1: Power Supply
H - HV Power Supply
Terminal Description
1 Line
2 Neutral
3 Ground
Table 2-2: Power Supply
L - LV Power Supply
Terminal Description (DC Voltage input polarity)
1 +ve (positive)
2 -ve (negative)
3 Ground
2–12 850 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL
Page 57
CHAPTER 2: INSTALLATION ELECTRICAL INSTALLATION
Table 2-3: Comms
SE - Comms - Basic Ethernet 1E/1P/2E - Comms - Advanced Ethernet
Terminal Description Terminal Description
1 IRIG-B (+) 1 IRIG-B (+)
2 IRIG-B (-) 2 IRIG-B (-)
3 RS485_1 (+) 3 RS485_1 (+)
4 RS485_1 (-) 4 RS485_1 (-)
5 RS485_1 COM 5 RS485_1 COM
6 RESERVED 6 RESERVED
7 RESERVED 7 RESERVED
8 RESERVED 8 RESERVED
9 RESERVED 9 RESERVED
10 RESERVED 10 RESERVED
RJ45 ETHERNET RJ45 NOT USED
Table 2-4: HV IO
A - HV I/O - 2 FA (Vmon), 3FC, 7 Contact Inputs
Terminal Description
1 FA_1 COM TRIP
2 FA_1 NO TRIP
3 FA_1 OPT/V TRIP
4 FA_2 COM CLOSE/AUX
5 FA_2 NO CLOSE/AUX
6 FA_2 OPT/V CLOSE/AUX
7 FC_1 NC AUX
8 FC_1 COM AUX
9 FC_1 NO AUX
10 FC_2 NC AUX
11 FC_2 COM AUX
12 FC_2 NO AUX
13 CONTACT IN_1
14 CONTACT IN_2
15 CONTACT IN_3
16 CONTACT IN_4
17 CONTACT IN_5
18 CONTACT IN_6
19 CONTACT IN_7
20 CONTACT IN COM
21 DC +24
22 FC_3 NC Critical Fail Relay
23 FC_3 COM Critical Fail Relay
24 FC_3 NO Critical Fail Relay
850 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL 2–13
Page 58
ELECTRICAL INSTALLATION CHAPTER 2: INSTALLATION
Table 2-5: AC Analog
AC Inputs - 4 X 1/5A CT, 4 VT AC Inputs - 1 X 1/5A CT
Terminal Description Terminal Description
1 CT1_IN 1 RESERVED
2 CT1_RETURN 2 RESERVED
3 CT2_IN 3 RESERVED
4 CT2_RETURN 4 RESERVED
5 CT3_IN 5 RESERVED
6 CT3_RETURN 6 RESERVED
7 CT4_IN 7 CT5_IN
8 CT4_RETURN 8 CT5_RETURN
9 VT1_IN 9 RESERVED
10 VT1_RETURN 10 RESERVED
11 VT2_IN 11 RESERVED
12 VT2_RETURN 12 RESERVED
13 VT3_IN 13 RESERVED
14 VT3_RETURN 14 RESERVED
15 VT4_IN 15 RESERVED
16 VT4_RETURN 16 RESERVED
Wire Size Use the following guideline when selecting wires or lugs to connect to terminal strips A, B,
C, D, E, F, G, H, and terminal blocks J, K. Note that the first two bullets are applicable to
terminal blocks J and K only:
• 12 AWG to 22 AWG (3.3 mm2 to 0.3 mm2): Single wire termination with/without 9.53
mm (0.375”) maximum diameter ring terminals.
• 14 AWG to 22 AWG (2.1 mm2 to 0.3 mm2): Multiple wire termination with 9.53 mm
(0.375”) maximum diameter ring terminals. Two ring terminals maximum per circuit.
• Suggested wiring screw tightening torques are: terminal strips A-H tighten to 4.5 in-lbs
(0.5 N-m) and terminal blocks J, K to 15 in-lb (1.7 N-m).
Figure 2-16: Fiber Connector Types (S - ST)
2–14 850 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL
Page 59
CHAPTER 2: INSTALLATION ELECTRICAL INSTALLATION
Phase Sequence and Transformer Polarity
For correct operation of the relay features, follow the instrument transformer polarities,
shown in the Typical Wiring Diagram above. Note the solid square markings that are
shown with all instrument transformer connections. When the connections adhere to the
drawing, the arrow shows the direction of power flow for positive watts and the positive
direction of vars. The phase sequence is user programmable for either ABC or ACB rotation.
The 850 relay has four (4) current inputs in each J slot and K slot. Three of them are used
for connecting to the phase CT phases A, B, and C. The fourth input is a ground input that
can be connected to either a ground CT placed on the neutral from a Wye connected
transformer winding, or to a “donut” type CT measuring the zero sequence current from a
grounded system. The relay CTs are placed in a packet mounted to the chassis of the
relay. There are no internal ground connections on the current inputs. Current
850
transformers with 1 to 12000 A primaries may be used.
CAUTION:
Verify that the relay’s nominal input current of 1 A or 5 A matches the secondary rating
of the connected CTs. Unmatched CTs may result in equipment damage or inadequate
protection.
CAUTION:
IMPORTANT: The phase and ground current inputs correctly measure up to 46 times the
current input’s nominal rating. Time overcurrent curves become horizontal lines for
currents above 20 × PKP.
Ground CT Inputs
There are two dedicated ground inputs referred throughout this manual as the Ground
Current and the Sensitive Ground Current inputs.
Before making ground connections, be aware that the relay automatically calculates the
neutral (residual) current from the sum of the three phase current phasors. The following
figures show three possible ground connections using the ground current input (Terminals
J7 and J8) and three possible sensitive ground connections using the sensitive ground
current input (Terminals K7 and K8).
The ground input (Terminals J7 and J8) is used in conjunction with a Zero Sequence CT as
source, or in the neutral of wye-connected source CTs. The ground current input can be
used to polarize both the neutral and sensitive ground directional elements. When using
the residual connection, set the GROUND
CT PRIMARY setpoint. The sensitive ground current input is intended for use either
PHASE
with a CT in a source neutral of a high-impedance grounded system, or on ungrounded
systems. On ungrounded systems it is connected residually with the phase current inputs.
In this case, the SENSTV
equal to the PHASE
connected to a Zero Sequence CT for increased sensitivity and accuracy when physically
possible in the system.
CT PRIMARY setpoint to a value equal to the
GND CT PRIMARY setpoint should be programmed to a value
CT PRIMARY setpoint. The sensitive ground current input can be
850 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL 2–15
Page 60
ELECTRICAL INSTALLATION CHAPTER 2: INSTALLATION
892773A2.cdr
8 Series
J1
J2
J3
J4
J5
J7J6J8J7 J8J8 J7
892774A2.cdr
8 Series
J1
J2
J3
J4
J5
K7J6K8K7 K8K8 K7
Figure 2-17: Ground Inputs
Figure 2-18: Sensitive Ground Inputs
2–16 850 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL
Page 61
CHAPTER 2: INSTALLATION ELECTRICAL INSTALLATION
892776A3.CDR
TO BUS VTs
A
C
B
J15
AUX
J16
VV
1 2
2V1
V
AUX
J15 J16
Van
Vab
52
TO BUS VTs
A
C
B
J15
AUX
J16
VV
1 2
Vbn
52
TO BUS VTs
A
C
B
J15
AUX
J16
VV
1 2
Vcn
52
TO BUS VTs
A
C
B
52
2V1
V
AUX
J15 J16
Vbc
TO BUS VTs
A
C
B
52
2V1
V
AUX
J15 J16
Vca
TO BUS VTs
A
C
B
52
Voltage Inputs
The 850 relays have four channels for AC voltage inputs, each with an isolating
transformer. Voltage transformers up to a maximum 5000:1 ratio may be used. The
nominal secondary voltage must be in the 10 to 240 V range. In Main-Tie-Main bus transfer
scheme, the three phase inputs are mostly used for “Bus voltage”. The Bus VT connections
most commonly used, wye and delta (or open delta), are shown in the typical wiring
diagram. The single Auxiliary voltage input is commonly used as the “line voltage”. The line
VT input channel, used for the synchrocheck feature, can be connected for phase-neutral
voltages V
Figure 2-19: Line VT Connections
, Vbn, or Vcn; or for phase-phase voltages Vab, Vbc, or Vca as shown.
an
CAUTION:
FASTPATH:
If Delta VTs are used for three-phase voltages, the zero sequence voltage (V0) and
neutral/sensitive ground polarizing voltage (–V0) are zero. Also, with the Delta VT
connection, the phase-neutral voltage cannot be measured and is not displayed.
Restricted Earth Fault Inputs
Restricted Earth Fault protection is often applied to transformers having grounded Wye
windings to provide ground fault detection for faults near the transformer neutral. Each
current bank on the relay has 3 phase current inputs and one ground input. Any of the
available inputs on the relay current banks can be selected as a signal input for an RGF
element.
Although the 850 is designed for feeder protection, it can provide Restricted Earth Fault
protection on transformers that do not have dedicated protection.
The phase and ground input CT connections to the relay are shown below:
850 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL 2–17
Page 62
ELECTRICAL INSTALLATION CHAPTER 2: INSTALLATION
J1 J2 J3 J4 J5 J6 J7 J8
CURRENT INPUTS
PHASE A PHASE B PHASE C
GROUND
I
A
N
I
C
I
B
I
G
NN
N
FEEDER
TRANSFORMER
892775A1.cdr
Ground connection to neutral
must be on the source side
UNSHIELDED CABLE
LOAD
ABCN G
Ground
outside CT
Source
LOAD
SHIELDED CABLE
996630A5
AB C
Source
To ground;
must be on
load side
Stress cone
shields
Figure 2-20: Restricted Ground Fault Inputs
Zero-Sequence CT Installation
The figure below shows the various CT connections and the exact placement of a Zero
Sequence current CT, so that ground fault current can be detected. Twisted pair cabling on
the Zero Sequence CT is recommended.
Figure 2-21: Zero Sequence (Core Balance) CT Installation
2–18 850 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL
Page 63
CHAPTER 2: INSTALLATION ELECTRICAL INSTALLATION
Control Power
Control power is supplied to the relay such that it matches the relay’s installed power
supply range.
CAUTION:
CAUTION:
Control power supplied to the relay must match the installed power supply range. If the
applied voltage does not match, damage to the unit may occur. All grounds MUST be
connected for normal operation regardless of control power supply type.
For more details, please refer to the Power Supply subsection located in the Introduction
chapter.
The relay should be connected directly to the ground bus, using the shortest practical
path. A tinned copper, braided, shielding and bonding cable should be used. As a
minimum, 96 strands of number 34 AWG should be used. Belden catalog number 8660
is suitable.
Figure 2-22: Control Power Connection
FASTPATH:
Contact Inputs
Depending on the order code, the 850 relay has a different number of contact inputs which
can be used to operate a variety of logic functions for circuit switching device control,
external trips, blocking of protection elements, etc. The relay has ‘contact inputs’ and
‘virtual inputs’ that are combined in a form of programmable logic to facilitate the
implementation of various schemes.
The voltage threshold at which the contact inputs detect a closed contact input is
programmable as 17 V DC for 24 V sources, 33 V DC for 48 V sources, 84 V DC for 110 to
125 V sources, and 166 V DC for 250 V sources.
Wet or Dry input signal types can be connected to contact input terminals as shown in the
figure: Wet and Dry Contact Input Wiring Examples.
Dry inputs use an internal +24V that is supplied by the 850. The voltage threshold must be
set to 17V for the inputs to be recognized using the internal +24V.
The same type of input signal must be connected to all contact inputs on the same contact
input card.
Figure 2-23: Wet and Dry Contact Input Wiring Examples
850 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL 2–19
Page 64
ELECTRICAL INSTALLATION CHAPTER 2: INSTALLATION
INPUT
SIGNAL
SWITCH
(DRY)
INPUT
SIGNAL
SWITCH
(WET)
EXTERNAL
DC POWER
SUPPLY
2–20 850 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL
Page 65
CHAPTER 2: INSTALLATION ELECTRICAL INSTALLATION
Output Relays
The locations of the output relays have a fixed assignment for the platform called the
master identifier. I/O options that include inputs occupy the fixed assigned output
locations so in these cases the relay assignment maps to the master identifier.
The critical output relay is reserved as Relay_8 and it is omitted and is not programmable.
Table 2-6: Master Identifier and Example of 2 x IO for “A” I/O option
Master Identifier 2 x IO for “A” I/O option example
TERM # SLOT F SLOT G or H TERM # SLOT F SLOT G or H
1 RELAY_1 RELAY_9 1 RELAY_1 RELAY_9
2 RELAY_1 RELAY_9 2 RELAY_1 RELAY_9
3 RELAY_1 RELAY_9 3 RELAY_1 RELAY_9
4 RELAY_2 RELAY_10 4 RELAY_2 RELAY_10
5 RELAY_2 RELAY_10 5 RELAY_2 RELAY_10
6 RELAY_2 RELAY_10 6 RELAY_2 RELAY_10
7 RELAY_3 RELAY_11 7 RELAY_3 RELAY_11
8 RELAY_3 RELAY_11 8 RELAY_3 RELAY_11
9 RELAY_3 RELAY_11 9 RELAY_3 RELAY_11
10 RELAY_4 RELAY_12 10 RELAY_4 RELAY_12
11 RELAY_4 RELAY_12 11 RELAY_4 RELAY_12
12 RELAY_4 RELAY_12 12 RELAY_4 RELAY_12
13 RELAY_5 RELAY_13 13 Digital In_1 Digital In_8
14 RELAY_5 RELAY_13 14 Digital In_2 Digital In_9
15 RELAY_5 RELAY_13 15 Digital In_3 Digital In_10
16 RELAY_6 RELAY_14 16 Digital In_4 Digital In_11
17 RELAY_6 RELAY_14 17 Digital In_5 Digital In_12
18 RELAY_6 RELAY_14 18 Digital In_6 Digital In_13
19 RELAY_7 RELAY_15 19 Digital In_7 Digital In_14
20 RELAY_7 RELAY_15 20 Common Common
21 RELAY_7 RELAY_15 21 +24V +24V
22 RELAY_8 RELAY_16 22 RELAY_8 RELAY_16
23 RELAY_8 RELAY_16 23 RELAY_8 RELAY_16
24 RELAY_8 RELAY_16 24 RELAY_8 RELAY_16
Table 2-7: Example of 2 x I/O for “A” I/O option
TERM # MASTER 850 TERM # MASTER 850
1 RELAY_1 TRIP 1 RELAY_9 AUX 9
2 RELAY_1 TRIP 2 RELAY_9 AUX 9
3 RELAY_1 TRIP 3 RELAY_9 AUX 9
4 RELAY_2 CLOSE 4 RELAY_10 AUX 10
5 RELAY_2 CLOSE 5 RELAY_10 AUX 10
6 RELAY_2 CLOSE 6 RELAY_10 AUX 10
7 RELAY_3 AUX 3 7 RELAY_11 AUX 11
8 RELAY_3 AUX 3 8 RELAY_11 AUX 11
9 RELAY_3 AUX 3 9 RELAY_11 AUX 11
10 RELAY_4 AUX 4 10 RELAY_12 AUX 12
11 RELAY_4 AUX 4 11 RELAY_12 AUX 12
12 RELAY_4 AUX 4 12 RELAY_12 AUX 12
13 RELAY_5 Digital In_1 13 RELAY_13 Digital In_8
850 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL 2–21
Page 66
ELECTRICAL INSTALLATION CHAPTER 2: INSTALLATION
TERM # MASTER 850 TERM # MASTER 850
14 RELAY_5 Digital In_2 14 RELAY_13 Digital In_9
15 RELAY_5 Digital In_3 15 RELAY_13 Digital In_10
16 RELAY_6 Digital In_4 16 RELAY_14 Digital In_11
17 RELAY_6 Digital In_5 17 RELAY_14 Digital In_12
18 RELAY_6 Digital In_6 18 RELAY_14 Digital In_13
19 RELAY_7 Digital In_7 19 RELAY_15 Digital In_14
20 RELAY_7 Common 20 RELAY_15 Common
21 RELAY_7 +24V 21 RELAY_15 +24V
22 RELAY_8 CRITICAL FR 22 RELAY_16 AUX 16
23 RELAY_8 CRITICAL FR 23 RELAY_16 AUX 16
24 RELAY_8 CRITICAL FR 24 RELAY_16 AUX 16
Table 2-8: Example I/O for “F” I/O option
TERM # MASTER SLOT H
1 RELAY_9 Digital In_1
2 RELAY_9 Digital In_2
3 RELAY_9 Digital In_3
4 RELAY_10 Digital In_4
5 RELAY_10 Digital In_5
6 RELAY_10 Digital In_6
7 RELAY_11 Digital In_7
8 RELAY_11 Digital In_8
9 RELAY_11 Digital In_9
10 RELAY_12 Digital In_10
11 RELAY_12 Common
12 RELAY_12 +24V
Table 2-9: Example I/O for “L” I/O option
TERM # MASTER SLOT G TERM # MASTER SLOT G
1 RELAY_9 Analog Out_1 10 RELAY_12 Digital In_1
2 RELAY_9 Analog Out_2 11 RELAY_12 Digital In_2
3 RELAY_9 Analog Out_3 12 RELAY_12 Digital In_3
4 RELAY_10 Analog Out_4 13 RELAY_13 Digital In_4
5 RELAY_10 Analog Out_5 14 RELAY_13 Return
6 RELAY_10 Analog Out_6 15 RELAY_13 Shield
7 RELAY_11 Analog Out_7 16 RELAY_14 Reserved
8 RELAY_11 Return 17 RELAY_14 Reserved
9 RELAY_11 Shield 18 RELAY_14 Reserved
2–22 850 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL
Page 67
CHAPTER 2: INSTALLATION ELECTRICAL INSTALLATION
SCADA, PLC, OR
PERSONAL COMPUTER
COM
ISOLATION
DATA
8-Series IED
SHIELD
892780A4.CDR
UP TO 32, 8-Series
OR OTHER IEDs,
MAXIMUM CABLE
LENGTH OF
1200 m (4000 ft.)
LAST
DEVICE
(*) TERMINATING IMPEDANCE AT E ACH END
(typically 120 ohms and 1 nF)
TWISTED PAIR
Z (*)
T
RS485 +
RS485 -
COMMON
RS485 +
RS485 -
COMMON
IED
RS485 +
IED
RS485 -
COMMON
GROUND THE SHIELD AT THE
SCADA/PLC/COMPUTER ONLY
OR THE 8-Series ONLY
DATA
ISOLATION
D3
D4
D5
Z (*)
T
Serial Communications
One two-wire RS485 port is provided. Up to 32 8 Series IEDs can be daisy-chained together
on a communication channel without exceeding the driver capability. For larger systems,
additional serial channels must be added. Commercially available repeaters can also be
used to add more than 32 relays on a single channel. Suitable cable should have a
characteristic impedance of 120 ohms (for example, Belden #9841) and total wire length
should not exceed 1200 meters (4000 ft.). Commercially available repeaters allow for
transmission distances greater than 1200 meters.
Voltage differences between remote ends of the communication link are not uncommon.
For this reason, surge protection devices are internally installed across all RS485
terminals.Internally, an isolated power supply with an opto-coupled data interface is used
to prevent noise coupling.
Figure 2-24: RS485 wiring diagram
CAUTION:
850 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL 2–23
To ensure that all devices in a daisy-chain are at the same potential, it is imperative
that the common terminals of each RS485 port are tied together and grounded only
once, at the master or at the 850. Failure to do so may result in intermittent or failed
communications.
The source computer/PLC/SCADA system should have similar transient protection devices
installed, either internally or externally. Ground the shield at one point only, as shown in the
figure above, to avoid ground loops. Correct polarity is also essential. The 850
wired with all the positive (+) terminals connected together and all the negative (–)
terminals connected together. Each relay must be daisy-chained to the next one. Avoid
star or stub connected configurations. The last device at each end of the daisy-chain
should be terminated with a 120 ohm ¼ watt resistor in series with a 1 nF capacitor across
the positive and negative terminals. Observing these guidelines ensure a reliable
communication system immune to system transients.
IEDs must be
Page 68
ELECTRICAL INSTALLATION CHAPTER 2: INSTALLATION
GE MULTILIN
8-SERIES
IRIG-B(-)
RECEIVER
TO OTHER DEVICES
SHIELDED CABLE
GPS SATELLITE SYSTEM
GPS CONNECTION
OPTIONAL
IRIG-B(+)
D1
D2
+
–
892781A3.CDR
IRIG-B
TIME CODE
GENERATOR
(DC SHIFT OR
AMPLITUDE MODULATED
SIGNAL CAN BE USED)
IRIG-B
IRIG-B is a standard time code format that allows time stamping of events to be
synchronized among connected devices within 1 millisecond. The IRIG-B time code
formats are serial, width-modulated codes which can be either DC level shift or amplitude
modulated (AM) form. The type of form is auto-detected by the 850
equipment is available for generating the IRIG-B signal; this equipment may use a GPS
satellite system to obtain the time reference so that devices at different geographic
locations can also be synchronized.
Figure 2-25: IRIG-B connection
relay. Third party
2–24 850 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL
Page 69
GE
Grid Solutions
850 Feeder Protection System
Chapter 3: Interfaces
Interfaces
There are two methods of interfacing with the 850.
• Interfacing via the relay keypad and display.
• Interfacing via the EnerVista 8 Series Setup software.
This section provides an overview of the interfacing methods available with the 850 using
the relay control panel and EnerVista 8 Series Setup
interface parameters (for example, settings, actual values, etc.), refer to the individual
chapters.
FIRST ACCESSING THE RELAY
When first accessing the relay, log in as Administrator either through the front panel or
through EnerVista connected serially (so that no IP address is required). Use the default
password.
Basic Security
If the relay is in the commissioning phase and you want to bypass authentication, switch
the “Setpoint access” setting on or assign it to a contact input. Once the setting is on, you
have complete administrator access from the front panel. If a contact input is chosen, the
access is also conditional on the activation of the respective contact input.
For more information on setpoint access and other security features available with basic
security, refer to the Basic Security section in the Setpoints chapter.
CyberSentry
If logging in through EnerVista, choose Device authentication and login as Administrator.
Note: If the relay is in the commissioning phase and the user wants to bypass
authentication, the user may use the setpoint access feature to gain administrative access
to the front panel in the same way as with basic security (see the “Basic Security” section).
For more information on security features available with CyberSentry, refer to the
CyberSentry security section in the Setpoints chapter.
software. For additional details on
850 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL 3–1
Page 70
FRONT CONTROL PANEL INTERFACE CHAPTER 3: INTERFACES
ESCAPE
ENTER HELP
IN SERVICE
TRIP
ALARM
PICK UP
AR ENABLED
AR IN PROGRESS
AR LOCKOUT
CLOSE
RESET
OPEN F1
BKR OPEN
BKR CLOSED
LOCAL MODE
SYNCHECK OK
TARGETS STATUS METERING SETPOINTS RECORDS
Navigation
Pushbuttons
Menu tabs associated
with pushbuttons for
screens navigation
Pushbuttons for
setpoints, and Up/ Down
value selections
“HELP”:help with
setting selection
“ESCAPE”:return to
previous menu
“Home”:return to
default screen
“ENTER”: enter selected
setting
“RESET”: reset targets,LEDs,
output relays
LEDs #1and LED #4(non-
programmable)
LED#2,LED#3,
and LEDs 5 to 14
(programmable)
Function PBs with LEDs
(programmable)
USB port
Display
LED labels
TEST MODE
MESSAGE
Front Control Panel Interface
The relay provides an easy to use faceplate for menu navigation using 5 navigation
pushbuttons and a high quality graphical display. Conveniently located on the panel is a
group of 7 pushbuttons for Up/Down value selection, Enter, Home, Escape, Help, and Reset
functions. The faceplate also includes 3 programmable function pushbuttons with LEDs.
Fourteen other status LEDs are available, 12 of which are programmable.
Figure 3-1: 850 Front Control Panel
3–2 850 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL
850 Graphical Display Pages
The front panel liquid crystal display (LCD) allows visibility under varied lighting conditions.
When the keypad and display are not being used, system information is displayed after a
user-defined period of inactivity. Pressing the Menu key during the display of the default
message, returns the display to the last message shown before the default message
appeared. Any Trip, Alarm, or Pickup is displayed immediately, automatically overriding the
default message.
Page 71
CHAPTER 3: INTERFACES FRONT CONTROL PANEL INTERFACE
Level 1 Level 2
Level 1 Level 2
Setpoints
Device
System
Inputs
Outputs
Protection
Monitoring
Control
FlexLogic
S
tatus
Breakers
Metering
Records
Events
Transients
Fault Reports
Breakers
Dig Counters
Clear Records
Targets
Data Logger
Testing
Summary
Currents
Voltages
Frequency
Harmonics
Synchrocheck
Power
Energy
Current Demand
Thermal Capacity
Power Demand
Directional Power
Wattmetric Gnd Flt
Fast Underfrequency
Arc Flash
RTDs
Analog Inputs
elays
Vir
Contact Inputs
Output R
tual Inputs
Arc Flash
Virtual Outputs
Communications
Information
Device Status
Autoreclose 1
Clock
Last Trip Data
Flex States
Figure 3-2: 850 Display Page Hierarchy
850 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL 3–3
Page 72
FRONT CONTROL PANEL INTERFACE CHAPTER 3: INTERFACES
TARGETS STATUS METERING
SETPOINTS
RECORDS
Working with
Graphical Display
Pages
The display contains five main menu items labeled Targets, Status, Metering, Setpoints,
and Records located at the bottom of the screen. Choosing each main menu item displays
the corresponding sub-menu.
Figure 3-3: Typical paging operation from the Main Menu
3–4 850 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL
There are two ways to navigate throughout the 850 menu: using the pushbuttons
corresponding to the soft tabs from the screen, or by selecting the item from the list of
items on the screen using the “Up” and “Down” pushbuttons to move the yellow
highlighted line, and pressing the pushbutton “Enter”.
Figure 3-4: Tab Pushbuttons
Page 73
CHAPTER 3: INTERFACES FRONT CONTROL PANEL INTERFACE
<< NIOC 2 NIOC 3
NIOC 4
>>
ESCAPE
ENTER
HELP
RESET
ENTER
ESCAPE RESET
The tab pushbuttons are used to enter the menu corresponding to the label on the tabs. If
more than 5 tabs exist, the first and the last tab are labelled with arrows to allow you to
scroll to the other tabs.
Figure 3-5: Keypad Pushbuttons
Each Keypad pushbutton serves the following function:
The Home pushbutton is used to display the home screen, and all screens defined under
the Front Panel/Screens menu as default screens.
The Enter pushbutton has a dual function. It is used to display a sub-menu when an item is
highlighted. It is also used to save the desired value for any selected setpoint.
The Up, and Down pushbuttons are used to select/highlight an item from a menu, as well
as select a value from the list of values for a chosen item.
The Escape pushbutton is used to display the previous menu. This pushbutton can also be
used to cancel a setpoint change.
850 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL 3–5
Page 74
FRONT CONTROL PANEL INTERFACE CHAPTER 3: INTERFACES
The Reset pushbutton clears all latched LED indications, target messages, and latched
output relays, providing the conditions causing these events are not present.
To change/view an item on from the 850 menus:
1. Use the pushbuttons that correspond to the tabs (Targets, Status, Metering, Setpoints,
Records) on the screen to select a menu.
2. Use the Up and Down pushbuttons to highlight an item.
3. Press Enter to view a list of values for the chosen item. (Some items are view-only.)
4. Use the Up and Down pushbuttons to highlight a value.
5. Press Enter to assign the highlighted value to the item.
3–6 850 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL
Page 75
CHAPTER 3: INTERFACES FRONT CONTROL PANEL INTERFACE
Single Line Diagram BKR1 LED setting for Breaker symbol color configuration
In all 8 Series devices the breaker symbol color is configurable through the first LED
assigned to operate with the BKR 1 Open operand.
Figure 3-6: BKR1 Operand LED settings and screen symbols
Single Line Diagram for 850
The 850 has a single line diagram (SLD) that represents the power system. The single line
diagram provided is pre-configured to show:
• Breaker status
• AC input connection
• System voltage
Accompanying the single line diagram are typical metered values associated with the
power system.
The single line diagram is configured as the default menu but this can be changed under
Setpoints > Device > Front Panel > Default Screen.
Figure 3-7: SLD and typical metered values screen
The breaker status icon changes state according to the breaker status input and the color
of the icon changes in accordance with the LED color setting.
The parameters displayed in the Front panel screen example are as follows.
850 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL 3–7
Page 76
FRONT CONTROL PANEL INTERFACE CHAPTER 3: INTERFACES
IN SERVICE
TRIP
ALARM
PICK UP
AR ENABLED
AR IN PROGRESS
AR LOCKOUT
BKR OPEN
BKR CLOSED
LOCAL MODE
SYNCHECK OK
TEST MODE
MESSAGE
Parameter Input for the value
Load Cur Metering\Generator\General\Load Current
Unbln Metering\Generator\General\Unbalance Current
Volt (L-L) Metering\Ph VT Bnk1-J2\J2 V AVG L-L
Freq Relay measured frequency metering (from freq tracking)
V/ Hz Metering\Volts per Hertz\Volts Per Hertz 1
S: Metering\Power 1\Pwr1 Apparent
P: Metering\Power 1\Pwr1 Real
Q: Metering\Power 1\Pwr1 Reactive
PF Metering\Power 1\Pwr1 PF
LED Status Indicators
Front panel LED details:
•Number of LEDs: 17
• Programmability: any logic variable, or virtual input
• Reset mode: self-reset or latched
The 850 front panel provides two columns of 7 LED indicators each, and 3 LED pushbutton
indicators. The “IN-SERVICE” (LED 1) and the “PICKUP” (LED 4) indicators from the first LED
column are non-programmable LEDs. The bottom 3 LED indicators from the first column,
and the 7 LED indicators from the second LED column are fully programmable. The
indicators “TRIP” (LED 2), and “ALARM” (LED 3), are also programmable, and can be
triggered by either a selection of FlexLogic operand assigned in their own menu, or by the
operation of any protection, control or monitoring element with function selected as Trip,
Alarm, or Latched Alarm.
The RESET key is used to reset any latched LED indicator or Target Message once the
condition has been cleared (latched conditions can also be reset via the RESETTING menu).
Figure 3-8: Typical LED Indicator Panel
• IN SERVICE:
– Green color = Relay powered up, passed self-test has been programmed, and
ready to serve. This LED indicates that control power is applied, all monitored
inputs, outputs, and internal systems are OK, and that the device has been
programmed.
– Red color = Relay failed self test, has not been programmed, or out of service
• TRIP:
This LED indicates that the element selected to produce a trip has operated. This
indicator always latches; as such, a Reset command must be initiated to allow the
3–8 850 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL
latch to be reset.
Page 77
CHAPTER 3: INTERFACES FRONT CONTROL PANEL INTERFACE
• ALARM:
This LED indicates that the FlexLogic™ operand serving as an Alarm switch has
operated. Latching of the indicator depends on the selected protection function. A
Reset command must be initiated to allow the latch to be reset.
• PICKUP:
This LED indicates that at least one element is picked up. This indicator is never
latched.
• TEST MODE
This LED indicates that the relay has been set into Test Mode.
• MESSAGE
This LED indicates the presence of Target Messages detected by the relay.
Breaker status indication is based on the breaker’s 52a and 52b contacts. With both
contacts wired to the relay and configured, closed breaker status is determined by closed
52a contact and opened 52b contact. Vice-versa the open breaker status is determined by
opened 52a contact and closed 52b contact. If both 52a and 52b contacts are open, due
to a breaker being racked out from the switchgear, both the Breaker Open and Breaker
Closed LED Indicators will be off.
The Event Cause indicators in the first column are described as follows:
Events Cause LEDs are turned ON or OFF by protection elements that have their respective
target settings selected as either “Self-Reset” or “Latched”. If a protection element target
setting is “Self-Reset”, then the corresponding Event Cause LEDs remain ON as long as the
operate operand associated with the element remains asserted. If a protection element
target setting is “Latched”, then the corresponding Event Cause LEDs turn ON when the
operate operand associated with the element is asserted and will remain ON until the
RESET button on the front panel is pressed after the operand is reset.
Default labels are installed on every 850. A custom LED template is available for editing
and printing, refer to publication GET-20035 from
http://www.gegridsolutions.com/multilin.
The default labels can be replaced by user-printed labels. User customization of LED
operation has maximum benefit in installations where languages other than English are
used to communicate with operators.
FASTPATH:
For LED and Pushbutton programming details, please refer to Section 4: Setpoints > Device
> Front Panel.
850 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL 3–9
Page 78
FRONT CONTROL PANEL INTERFACE CHAPTER 3: INTERFACES
Home Screen Icons
The next figure shows the icons available on the front screen. For descriptions of these
screen icons see the following tables.
Figure 3-9: Home Screen Icons
Table 3-1: Security Icon
Security State Security Icon Color
User not logged in Icon is green and locked
User logged in Icon is red and unlocked
Table 3-2: Setpoint Group Icon
Description
Identifies the active setpoint group
Table 3-3: Wifi Icon
Wifi State Wifi Icon Color
Disabled Icon is grey and crossed by a red line
Disconnected Grey
Connecting Orange
Connected Green
Table 3-4: File Saving Icon
Description
Indicates that a setting is being saved on the relay (i.e., when changing one of relay settings).
Icon is ON (relay is saving to flash memory)
Icon is OFF (relay is not saving to flash memory)
NOTE:
Do not remove power from the relay whenever the File saving icon is ON. When power is
removed the data being saved can also be lost.
Table 3-5: Active Target Icon
Description
When the target auto navigation setting is disabled, the message LED and the Active Target icon are
the only indication of active target messages.
Table 3-6: Breaker Health Icon
Description
The Breaker Health icon is blue when the setting for the breaker health function is not disabled.
When the setting is disabled the icon is grey.
3–10 850 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL
Page 79
CHAPTER 3: INTERFACES FRONT CONTROL PANEL INTERFACE
Relay Messages
Target Messages Targets are messages displayed on the screen when any change of state of protection,
control, monitoring, or digital signal takes place. For the user’s convenience, the targets for
each element are enable by default. The user can disable targets for any particular
element by selecting and entering the setting “Disabled” within the element’s menu.
Target Messages are displayed in order of their activation, whereas in cases of
simultaneous activation, they are displayed in the order outlined below (from highest to
lowest priority):
1. Targets generated by pressing programmable pushbutton
2. Targets generated by Contact inputs
3. Targets generated by Protection, Control and Monitoring elements
4. Targets generated by communications.
In cases where the Pickup and Operate flags from an element are detected at the same
time, the Pickup flag is not displayed. The Operate flag is displayed instead.
LED #6, from the first column of LEDs, is factory configured to be triggered by the FlexLogic
operand ANY TARGET, to indicate the presence of at least one target message. This LED is
labeled as “MESSAGE”. The LED can be programmed to any other FlexLogic operand by
choice.
MESSAGE TIMEOUT:
The timeout applies to each screen that is different than the default screen to which the
user navigates. Examples include viewing, metering, or navigating to a screen with setting,
etc. If no further navigation is performed, no pushbutton is touched, and/or no target is
initiated for the time specified in the message timeout setpoint, the display goes back to
the default screen (the metering summary screen).
The target message interrupts the message timeout. It overrides it. The message timeout
starts timing after each target message, and if no more activity is recorded for the
specified time, the display goes back to the default screen.
Pressing a programmable pushbutton activates a new screen with a Target Message
corresponding to the programmed PB action. The PB Target Message is displayed for 10
seconds then defaults to the screen that was displayed before pressing the pushbutton.
The PB Target Message is recorded in the list with other generated Target Messages.
Target Messages can be cleared either by pressing the PB corresponding to the tab
“CLEAR”, or by initiating a RESET command. The “CLEAR” command clears only the Target
Messages, while initiating a RESET clears not only the Target Messages, but also any
latched LEDs and output relays.
850 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL 3–11
Page 80
FRONT CONTROL PANEL INTERFACE CHAPTER 3: INTERFACES
Self-test Errors The relay performs self-diagnostics at initialization (after power up), and continuously as a
background task to ensure that the hardware and software are functioning correctly.
There are two types of self-test warnings indicating either a minor or major problem. Minor
errors indicate a problem with the relay that does not compromise protection and control
functionality of the relay. Major errors indicate a problem with the relay which takes it out
of service.
CAUTION:
Self-Test Warnings may indicate a serious problem with the relay hardware!
Upon detection of a minor problem, the relay does the following:
• Displays a detailed description of the error on the relay display as a target message
• Records the minor self-test error in the Event Recorder
•Flashes the “ALARM” LED
Upon detection of a major problem, the relay does the following:
• De-energizes critical failure relay
• Inhibits operation of all output relays and freezes the current state
• Blocks protection and control elements
• Turns the "IN SERVICE" LED to red
• Flashes the "ALARM" LED
• Displays “Major Self-test error” with the error code as a target message
• Records the major self-test failure in the Event Recorder
Under both conditions, the targets cannot be cleared if the error is still active.
Figure 3-10: Minor Errors
3–12 850 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL
Page 81
CHAPTER 3: INTERFACES FRONT CONTROL PANEL INTERFACE
Figure 3-11: Major Errors
Table 3-7: Minor Self-test Errors
Self-test Error
Message
1
Order Code Error Hardware doesn’t
CPU S/N Invalid CPU card doesn’t have
Slot“$” IO S/N
2
Invalid
Comms S/N
Invalid
CPanel S/N Invalid Control Panel doesn’t
PSU S/N Invalid Power Supply Unit
RTC Error The CPU cannot read
Product Serial
Invalid
Comm Alert #1 Communication error
Comm Alert #2 Every 1 second
Comm Alert #3 Every 1 second
FLASH Error The permanent storage
SPI Error Communication error
Invalid MAC
Address
Calibration Error Unit has default
Description of Problem How Often the Test is
Performed
Every 1 second If alert doesn’t self-reset then
match order code
Every 1 second
valid data to match the
order code.
IO card located in slot $
Every 1 second
doesn’t have valid data
to match the order
code.
Comms card doesn’t
Every 1 second
have valid data to
match the order code.
Every 1 second
have valid data to
match the order code.
Every 1 second
doesn’t have valid data
to match the order
code.
Every 1 second
the time from the real
time clock
The product serial
Every 1 second
number doesn’t match
the product type
Every 1 second
between CPU and
Comms board
Every 1 second
memory has been
corrupted
Every 1 second
between CPU and LEDs,
Keypad or peripheral
memory devices
MAC address is not in
Every 1 second
the product range
Boot-up and Every 1
calibration values
second
What to do
contact factory. Otherwise
monitor re-occurrences as
errors are detected and selfreset
850 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL 3–13
Page 82
FRONT CONTROL PANEL INTERFACE CHAPTER 3: INTERFACES
Self-test Error
Message
1
Clock Not Set The clock has the
Description of Problem How Often the Test is
Performed
Every 1 second Set clock to current time
What to do
default time
WiFi Default
Settings
Link Error Primary 3Port 1 or Port 4
SSID and Passphrase is
the factory default
(depending on order
code) is not connected
Every 1 second Set SSID and Passphrase
Every 1 second Ensure Ethernet cable is
connected, check cable
functionality (i.e. physical
damage or perform
continuity test), and ensure
master or peer device is
functioning. If none of these
apply, contact the factory.
Link Error
Secondary
Port 5 is not connected Every 1 second Ensure Ethernet cable is
connected, check cable
functionality (i.e. physical
damage or perform
continuity test), and ensure
master or peer device is
functioning. If none of these
apply, contact the factory.
Traffic Error
Primary
Abnormally high
amount of Broadcast
and Uni-cast traffic on
Every 1 second Contact site IT department to
check network for
malfunctioning devices
port 1 or port 4
Traffic Error
Secondary
Abnormally high
amount of Broadcast
and Uni-cast traffic on
Every 1 second Contact site IT department to
check network for
malfunctioning devices
port 5
Ambient
Temperature
>80C
The ambient
temperature
surrounding the
product has exceeded
Every 1 second Inspect mounting enclosure
for unexpected heat sources
(i.e loose primary cables) and
remove accordingly
80C
Event Rate High Abnormally high
amounts of events have
been generated so the
relay has stopped
logging to prevent
Every 1 second Ensure settings are not set
close to nominal ratings.
Ensure Flexlogic equations
do not have impractical
timing for status events
further issues
IRIG-B Failure A bad IRIG-B input
signal has been
detected
Every 1 second Ensure IRIG-B cable is
connected, check cable
functionality (i.e. physical
damage or perform
continuity test), ensure IRIG-B
receiver is functioning, and
check input signal level (it
may be less than
specification). If none of
these apply, contact the
factory.
Version Mismatch CPU and Comms do not
have the same revision
on firmware
SelfTestFWUpdateThe updating of the
firmware failed
Boot-up and Every 1
second
Ensure that both the CPU and
Comms FW was uploaded
during the upgrade process
Every 1 second Re-try uploading firmware. If
the upload doesn’t work a
second time contact factory
1. – Failure is logged after the detection of 5 consecutive failures
2. $ – is the slot ID (i.e., F, G, H etc.)
3.To disable Link Error Primary target when not in-use with SE order code, change IP
address to 127.0.0.1
3–14 850 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL
Page 83
CHAPTER 3: INTERFACES FRONT CONTROL PANEL INTERFACE
Table 3-8: Major Self-test Errors
Self-test Error
Message
Major Self-Test
(error code)
Latched
Target
Message
Yes Unit hardware fa ilure
Description of
Problem
detected
How Often the Test
is Performed
Every 1 second Contact the factory and
What to do
supply the failure code as
noted on the display.
Out of Service When the relay is shipped from the factory, the DEVICE IN SERVICE is set to “Not Ready”.
The IN SERVICE LED will be orange and the critical fail relay will be de-energized but this will
not be classified as a major self-test. An out of service event will be generated in the event
recorder.
Flash Messages Flash messages are warning, error, or general information messages displayed in response
to pressing certain keys. The factory default flash message time is 5 seconds.
Label Removal
The following procedure describes how to use the label removal tool.
1. Bend the tabs of the tool upwards as shown in the image.
850 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL 3–15
Page 84
FRONT CONTROL PANEL INTERFACE CHAPTER 3: INTERFACES
2. Slide the label removal tool under the LED label as shown in the next image. Make sure
the bent tabs are pointing away from the relay. Move the tool inside until the tabs
enter the pocket.
3. Remove the tool with the LED label.
The following describes how to remove the user-programmable pushbutton label from the
front panel.
850
1. Slide the label tool under the user-programmable pushbutton label as shown in the
next image. Make sure the bent tab is pointing away from the relay.
2. Remove the tool and user-programmable pushbutton label as shown in image.
3–16 850 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL
Page 85
CHAPTER 3: INTERFACES SOFTWARE INTERFACE
Software Interface
EnerVista 8 Series Setup Software
Although settings can be entered manually using the control panel keys, a PC can be used
to download setpoints through the communications port. The EnerVista 8 Series
software is available from GE Multilin to make this as convenient as possible. With
Setup
EnerVista 8 Series Setup software running, it is possible to:
• Program and modify settings
• Load and save setting files to and from a disk
• Read actual values
• Monitor status
• Read pre-trip data and event records
• Get help on any topic
• Upgrade the 850 firmware
The EnerVista 8 Series Setup software allows immediate access to all 850 features with
easy to use pull down menus in the familiar Windows environment. This section provides
the necessary information to install EnerVista 8 Series Setup
firmware, and write and edit setting files.
The EnerVista 8 Series Setup software can run without a 850 connected to the computer.
In this case, settings may be saved to a file for future use. If a 850
communications are enabled, the 850
addition, measured values, status and trip messages can be displayed with the actual
value screens.
can be programmed from the setting screens. In
software, upgrade the relay
is connected to a PC and
Hardware & Software
Requirements
Installing the
EnerVista 8 Series
Setup Software
The following requirements must be met for the software.
• Dual-core processor
• Microsoft Windows™ 7 or 8.1; 32-bit or 64-bit is installed and running properly.
• At least 1 GB of free hard disk space is available.
• At least 2 GB of RAM is installed.
• 1280 x 800 display screen
The software can be installed from either the GE EnerVista CD or the GE Multilin website at
http://www.gegridsolutions.com/.
After ensuring the minimum requirements indicated earlier, use the following procedure to
install the EnerVista 8 Series Setup
1. Insert the GE EnerVista CD into your CD-ROM drive.
2. Click the Install Now button and follow the installation instructions to install the no-
charge EnerVista software on the local PC.
3. When installation is complete, start the EnerVista Launchpad application.
4. Click the IED Setup section of the LaunchPad toolbar.
software from the enclosed GE EnerVista CD.
850 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL 3–17
Page 86
SOFTWARE INTERFACE CHAPTER 3: INTERFACES
5. In the EnerVista Launchpad window, click the Add Product button and select the
850 Protection System as shown below. Select the Web option to ensure the most
recent software release, or select CD if you do not have a web connection, then click
the Add Now button to list software items for the 850.
6. EnerVista Launchpad obtains the latest installation software from the Web or CD and
automatically starts the installation process. A status window with a progress bar is
shown during the downloading process.
7. Select the complete path, including the new directory name, where the EnerVista 8
Series Setup software is being installed.
8. Click on Next to begin the installation. The files are installed in the directory indicated,
the USB driver is loaded into the computer, and the installation program automatically
creates icons and adds the EnerVista 8 Series Setup software to the Windows start
menu.
9. The 850 device is added to the list of installed IEDs in the EnerVista Launchpad
window, as shown below.
3–18 850 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL
Page 87
CHAPTER 3: INTERFACES SOFTWARE INTERFACE
If you are going to communicate from your computer to the 850 Relay using the USB
port:
10. Plug the USB cable into the USB port on the 850 Relay then into the USB port on your
computer.
11. Launch EnerVista 8 Series Setup software from LaunchPad.
12. In EnerVista > Device Setup:
850 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL 3–19
Page 88
SOFTWARE INTERFACE CHAPTER 3: INTERFACES
13. Select USB as the Interface type.
14. Select the Read Order Code button.
Connecting EnerVista 8 Series Setup software to the Relay
Using the Quick
Connect Feature
The Quick Connect button can be used to establish a fast connection through the front
panel USB port of a relay, or through the Ethernet port. The following window appears
when the QuickConnect button is pressed:
As indicated by the window, the "Quick Connect" feature can quickly connect the software
to a front port if the USB is selected in the interface drop-down list. Select “USB” and press
the Connect button. Ethernet or WiFi can also be used as the interface for Quick Connect
as shown next.
3–20 850 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL
Page 89
CHAPTER 3: INTERFACES SOFTWARE INTERFACE
When connected, a new Site called “Quick Connect” appears in the Site List window.
The Site Device has now been configured via the Quick Connect feature for either USB or
Ethernet communications. Proceed to Connecting to the Relay next, to begin
communications.
Configuring Ethernet
Communications
FASTPATH:
Before starting, verify that the Ethernet cable is properly connected to the RJ-45 Ethernet
port.
850 supports a maximum of 3 TCP/IP sessions.
1. Install and start the latest version of the EnerVista 8 Series Setup software (available
from the GE EnerVista CD or Website). See the previous section for the installation
procedure.
2. Click on the Device Setup button to open the Device Setup window and click the Add
Site button to define a new site.
3. Enter the desired site name in the "Site Name" field. If desired, a short description of
the site can also be entered. In this example, we will use “Substation 1” as the site
name.
4. The new site appears in the upper-left list.
5. Click the Add Device button to define the new device.
6. Enter the desired name in the "Device Name" field, and a description (optional).
850 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL 3–21
Page 90
SOFTWARE INTERFACE CHAPTER 3: INTERFACES
7. Select “Ethernet” from the Interface drop-down list. This displays a number of
interface parameters that must be entered for proper Ethernet functionality.
8. Enter the IP address, slave address, and Modbus port values assigned to the 850 relay
(from the SETPOINTS > DEVICE > COMMUNICATIONS menu).
9. Click the Read Order Code button to connect to the 850 and upload the order code. If
a communications error occurs, ensure that the Ethernet communication values
correspond to the relay setting values.
10. Click OK when the relay order code has been received. The new device will be added
to the Site List window (or Online window) located in the top left corner of the main
EnerVista 8 Series Setup software window.
The 850 Site Device has now been configured for Ethernet communications. Proceed to
the following section to begin communications.
3–22 850 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL
Page 91
CHAPTER 3: INTERFACES SOFTWARE INTERFACE
Connecting to the
Relay
Now that the communications parameters have been properly configured, the user can
easily communicate with the relay.
1. Expand the Site list by double clicking on the site name or clicking on the «+» box to
list the available devices for the given site.
2. Desired device trees can be expanded by clicking the «+» box. The following list of
headers is shown for each device:
Device Definition
Status
Metering
Quick Setup
Setpoints
Records
Maintenance.
3. Expand the SETPOINTS > DEVICE > FRONT PANEL list item and double click on Display
Properties or Default Screens to open the settings window as shown next:
4. The settings window opens with a corresponding status indicator on the lower left of
the window.
5. If the status indicator is red, verify that the serial, USB, or Ethernet cable is properly
connected to the relay, and that the relay has been properly configured for
communications (steps described earlier).
The settings can now be edited, printed, or changed. Other setpoint and command
windows can be displayed and edited in a similar manner. "Actual Values" windows are
also available for display. These windows can be arranged, and resized, if desired.
850 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL 3–23
Page 92
SOFTWARE INTERFACE CHAPTER 3: INTERFACES
Working with Setpoints & Setpoints Files
Engaging a Device The software may be used in on-line mode (relay connected) to directly communicate with
a relay. Communicating relays are organized and grouped by communication interfaces
and into sites. Sites may contain any number of relays selected from the product series.
Entering Setpoints The System Setup page is used as an example to illustrate entering setpoints. In this
example, we are changing the voltage sensing setpoints.
1. Establish communications with the relay.
2. Select the Setpoint > System > Voltage Sensing menu item.
3. Select the Aux. VT Secondary setpoint by clicking anywhere in the parameter box. This
displays three arrows: two to increment/decrement the value and another to launch
the numerical keypad.
4. Clicking the arrow at the end of the box displays a numerical keypad interface that
allows the user to enter a value within the setpoint range displayed near the top of the
keypad: Click = to exit from the keypad and keep the new value. Click on X to exit from
the keypad and retain the old value.
3–24 850 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL
Page 93
CHAPTER 3: INTERFACES SOFTWARE INTERFACE
5. For setpoints requiring non-numerical pre-set values (e.g. Phase VT Connection
below), clicking anywhere within the setpoint value box displays a drop-down
selection menu arrow. Select the desired value from this list.
6. In the Setpoints > System Setup > Voltage Sensing dialog box, click on Save to save
the values into the 850. Click YES to accept any changes and exit the window. Click
Restore to retain previous values. Click Default to restore Default values.
7. For setpoints requiring an alphanumeric text string (e.g. "relay name"), the value may
be entered directly within the setpoint value box.
File Support Opening any file automatically launches the application or provides focus to the already
opened application.
New files are automatically added to the tree.
850 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL 3–25
Page 94
SOFTWARE INTERFACE CHAPTER 3: INTERFACES
Using Setpoints Files The software interface supports three ways of handling changes to relay settings:
• In off-line mode (relay disconnected) to create or edit relay settings files for later
download to communicating relays.
• Directly modifying relay settings while connected to a communicating relay, then
saving the settings when complete.
• Creating/editing settings files while connected to a communicating relay, then saving
them to the relay when complete.
Settings files are organized on the basis of file names assigned by the user. A settings file
contains data pertaining to the following types of relay settings:
• Device Definition
•Relay Setup
•System Setup
•Protection
• Control
• Inputs/Outputs
• Monitoring
•Flexlogic
•Quick setup
• Protection summary
• IEC 61850 configurator
• Modbus user map
Factory default values are supplied and can be restored after any changes.
The 850 displays relay setpoints with the same hierarchy as the front panel display.
Downloading & Saving
Setpoints Files
Setpoints must be saved to a file on the local PC before performing any firmware
upgrades. Saving setpoints is also highly recommended before making any setpoint
changes or creating new setpoint files.
The setpoint files in the window are accessed in the Files Window. Use the following
procedure to download and save setpoint files to a local PC.
1. Ensure that the site and corresponding device(s) have been properly defined and
configured as shown in Connecting to the Relay, above.
2. Select the desired device from the site list.
3. Select the Read Device Settings from the online menu item, or right-click on the
device and select Read Device Settings to obtain settings information from the
device.
4. After a few seconds of data retrieval, the software requests the name and destination
path of the setpoint file. The corresponding file extension is automatically assigned.
Press Receive to complete the process. A new entry is added to the tree, in the File
pane, showing path and file name for the setpoint file.
3–26 850 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL
Page 95
CHAPTER 3: INTERFACES SOFTWARE INTERFACE
Adding Setpoints Files
to the Environment
The EnerVista 8 Series Setup software provides the capability to review and manage a
large group of setpoint files. Use the following procedure to add an existing file to the list.
1. In the offline pane, right-click on Files and select the Add Existing Settings File item
as shown:
2. The Open dialog box will appear, prompting the user to select a previously saved
setpoint file. As for any other MS Windows® application, browse for the file to be
added then click Open. The new file and complete path will be added to the file list.
850 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL 3–27
Page 96
SOFTWARE INTERFACE CHAPTER 3: INTERFACES
Creating a New
Setpoints File
The software allows the user to create new setpoint files independent of a connected
device. These can be uploaded to a relay at a later date. The following procedure illustrates
how to create new setpoint files.
1. In the Offline pane, right click and select the New Settings File item. The following box
appears, allowing for the configuration of the setpoint file for the correct firmware
version. It is important to define the correct firmware version to ensure that setpoints
not available in a particular version are not downloaded into the relay.
2. Select the Firmware Version, and Order Code options for the new setpoint file.
3. For future reference, enter some useful information in the Description box to facilitate
the identification of the device and the purpose of the file.
4. To select a file name and path for the new file, click the button beside the File Name
box.
5. Select the file name and path to store the file, or select any displayed file name to
replace an existing file. All 850 setpoint files should have the extension ‘.cid’ (for
example, ‘850 1.cid’).
6. Click OK to complete the process. Once this step is completed, the new file, with a
complete path, is added to the 850 software environment.
NOTE:
File names for setting files cannot have a decimal point other than the one that is added in
front of CID.
3–28 850 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL
Page 97
CHAPTER 3: INTERFACES SOFTWARE INTERFACE
Upgrading Setpoints
Files to a New
Revision
It is often necessary to upgrade the revision for a previously saved setpoint file after the
850 firmware has been upgraded. This is illustrated in the following procedure:
1. Establish communications with the 850 relay.
2. Select the Status > Information > Main CPU menu item and record the Firmware
Version.
3. Load the setpoint file to be upgraded into the EnerVista 8 Series Setup software
environment as described in the section, Adding Setpoints Files to the Environment.
4. In the File pane, select the saved setpoint file.
5. From the main window menu bar, select the Offline > Edit Settings File Properties
menu item and note the File Version of the setpoint file. If this version is different from
the Firmware Revision noted in step 2, select a New File Version that matches the
Firmware Revision from the pull-down menu.
6. For example, if the firmware revision is J0J08AA150.SFD (Firmware Revision 1.50) and
the current setpoint file revision is 1.10, change the New File Version to “1.5x”.
7. Enter any special comments about the setpoint file in the "Description" field.
8. Select the desired firmware version from the "New File Version" field.
9. When complete, click OK to convert the setpoint file to the desired revision. See
Loading Setpoints from a File below, for instructions on loading this setpoint file into
the 850.
Printing Setpoints The software allows the user to print partial or complete lists of setpoints. Use the following
procedure to print a list of setpoints:
1. Select a previously saved setpoints file in the File pane or establish communications
with a device.
2. If printing from an online device, select the Online > Print Device Information menu
item. If printing from a previously saved setpoints file, select the Offline > Print
Settings File menu item.
850 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL 3–29
Page 98
SOFTWARE INTERFACE CHAPTER 3: INTERFACES
3. The Print/Export Options dialog box appears. Select Setpoints in the upper section
and select either Include All Features (for a complete list) or Include Only Enabled
Features (for a list of only those features which are currently used) in the filtering
section and click OK.
4. Setpoint lists can be printed in the same manner by right clicking on the desired file (in
the file list) or device (in the device list) and selecting the Print Device Information or
Print Settings File options.
Printing Values from a
Connected Device
3–30 850 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL
A complete list of actual values can also be printed from a connected device with the
following procedure:
1. Establish communications with the desired device.
2. From the main window, select the Online > Print Device Information menu item
3. The Print/Export Options dialog box will appear. Select Actual Values in the upper
section and select either Include All Features (for a complete list) or Include Only
Enabled Features (for a list of only those features which are currently used) in the
filtering section and click OK.
Actual values lists can be printed in the same manner by right clicking on the desired
device (in the device list) and selecting the Print Device Information option.
Page 99
CHAPTER 3: INTERFACES SOFTWARE INTERFACE
Loading Setpoints
from a File
CAUTION:
An error message occurs when attempting to upload a setpoint file with a revision
number that does not match the relay firmware. If the firmware has been upgraded
since saving the setpoint file, see Upgrading Setpoints Files to a New Revision for
instructions on changing the revision number of a setpoint file.
The following procedure illustrates how to load setpoints from a file. Before loading a
setpoints file, it must first be added to the 850
environment as described in the section,
Adding Setpoints Files to the Environment.
1. Select the previously saved setpoints file from the File pane of the 850 software main
window.
2. Select the Offline > Edit Settings File Properties menu item and verify that the
corresponding file is fully compatible with the hardware and firmware version of the
target relay. If the versions are not identical, see Upgrading Setpoint Files to a New
Revision for details on changing the setpoints file version.
3. Right-click on the selected file and select the Write Settings File to Device item.
4. Select the target relay from the list of devices shown and click Send. If there is an
incompatibility, an error of the following type occurs:
If there are no incompatibilities between the target device and the settings file, the data is
transferred to the relay. An indication of the percentage completed is shown in the bottom
of the main window.
850 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL 3–31
Page 100
SOFTWARE INTERFACE CHAPTER 3: INTERFACES
Quick Setup
The Quick Setup item is accessed from the EnerVista software from different screens.
Online and offline settings changes are made from the corresponding Quick Setup screen.
Figure 3-12: 850 Quick Setup (Online) tree position
Figure 3-13: 850 Quick Setup (Offline) tree position
Quick Setup is designed to allow quick and easy user programming. Power system
parameters, and settings for some simple overcurrent elements are easily set. The Quick
Setup screen is shown as follows:
3–32 850 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL
Loading...