GE 869 Instruction Manual
GE
Grid Solutions
869
Motor Protection System
Motor Protection, Control and Management
Instruction manual
Product version: 2.0x
GE publication code: 1601-0450-A8 (GEK-119649G)
*1601-0450-A8*
© 2017 GE Multilin Incorporated. All rights reserved.
GE Multilin 869 Motor Protection System instruction manual for revision 2.0x.
869 Motor 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: 1601-0450-A8 (July 2017)
Note
May contain components with FCC ID: XF6-RS9110N1122
and IC ID: 8407A-RS9110N1122.
Table of Contents
1.INTRODUCTION Overview .............................................................................................................................................. 1 - 1
Description of the 869 Motor Protection System.............................................................. 1 - 2
Security Overview............................................................................................................................ 1 - 7
869 Order Codes............................................................................................................................... 1 - 8
Specifications...................................................................................................................................1 - 11
Device .......................................................................................................................................................... 1 - 11
Protection................................................................................................................................................... 1 - 11
Control......................................................................................................................................................... 1 - 20
Monitoring.................................................................................................................................................. 1 - 21
Recording................................................................................................................................................... 1 - 23
User-Programmable Elements ........................................................................................................ 1 - 24
Metering...................................................................................................................................................... 1 - 25
Inputs ........................................................................................................................................................... 1 - 27
Outputs........................................................................................................................................................ 1 - 28
Power Supply ........................................................................................................................................... 1 - 30
Communications .................................................................................................................................... 1 - 30
Testing & Certification..........................................................................................................................1 - 31
Physical....................................................................................................................................................... 1 - 32
Environmental.......................................................................................................................................... 1 - 32
Cautions and Warnings ..............................................................................................................1 - 33
Safety words and definitions............................................................................................................ 1 - 33
General Cautions and Warnings..................................................................................................... 1 - 33
Must-read Information................................................................................................................1 - 36
Storage........................................................................................................................................................ 1 - 37
For Further Assistance.................................................................................................................1 - 37
Repairs......................................................................................................................................................... 1 - 37
2.INSTALLATION Mechanical Installation................................................................................................................. 2 - 1
Product Identification..............................................................................................................................2 - 1
Dimensions...................................................................................................................................................2 - 2
Mounting ....................................................................................................................................................... 2 - 3
Standard Panel Mount.............................................................................................................................2 - 4
Depth Reducing Collar.............................................................................................................................2 - 5
Draw-out Unit Withdrawal and Insertion ......................................................................................2 - 7
Removable Power Supply .....................................................................................................................2 - 8
Removable Magnetic Module .............................................................................................................. 2 - 9
Arc Flash Sensor ..................................................................................................................................... 2 - 10
Sensor Fiber Handling & Storage....................................................................................................2 - 10
Sensor Installation..................................................................................................................................2 - 10
Electrical Installation ....................................................................................................................2 - 11
Typical Wiring Diagram....................................................................................................................... 2 - 11
Terminal Identification .........................................................................................................................2 - 14
Wire Size......................................................................................................................................................2 - 18
Phase Sequence and Transformer Polarity ............................................................................... 2 - 19
Ground and Sensitive Ground CT Inputs ..................................................................................... 2 - 20
Zero-Sequence CT Installation ......................................................................................................... 2 - 21
Differential CT Inputs ............................................................................................................................ 2 - 22
Voltage Inputs..........................................................................................................................................2 - 23
Control Power........................................................................................................................................... 2 - 24
Contact Inputs ......................................................................................................................................... 2 - 25
Output Relays .......................................................................................................................................... 2 - 25
869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL I
Serial Communications ........................................................................................................................2 - 27
IRIG-B............................................................................................................................................................2 - 29
3.INTERFACES Front Control Panel Interface......................................................................................................3 - 2
Graphical Display Pages ...................................................................................................................... 3 - 2
Working with Graphical Display Pages.......................................................................................... 3 - 4
Single Line Diagram................................................................................................................................. 3 - 6
Rugged and Membrane Front Panel LEDs .................................................................................... 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 - 18
Upgrading the Software......................................................................................................................3 - 20
Connecting EnerVista 8 Series Setup software to the Relay..............................................3 - 21
Using the Quick Connect Feature...................................................................................................3 - 21
Configuring Ethernet Communications........................................................................................3 - 22
Connecting to the Relay......................................................................................................................3 - 23
Working with Setpoints & Setpoints Files ....................................................................................3 - 24
Engaging a Device..................................................................................................................................3 - 25
Entering Setpoints ..................................................................................................................................3 - 25
File Support................................................................................................................................................3 - 26
Using Setpoints Files..............................................................................................................................3 - 26
Downloading & Saving Setpoints Files..........................................................................................3 - 27
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 - 30
Loading Setpoints from a File ...........................................................................................................3 - 31
Uninstalling Files and Clearing Data..............................................................................................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
SLD Configurator.....................................................................................................................................3 - 38
FlexCurve Editor.......................................................................................................................................3 - 45
Transient Recorder (Waveform Capture).....................................................................................3 - 46
Protection Summary.............................................................................................................................3 - 50
Offline Settings File Conversion........................................................................................................3 - 52
Convert SR 469 Files..............................................................................................................................3 - 52
Convert 369 Files.....................................................................................................................................3 - 53
Conversion Summary Report............................................................................................................3 - 53
Results Window.......................................................................................................................................3 - 54
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
II 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL
Custom Configuration............................................................................................................................. 4 - 7
Real-time Clock .......................................................................................................................................... 4 - 9
PTP Configuration......................................................................................................................................4 - 9
Clock..............................................................................................................................................................4 - 11
SNTP Protocol...........................................................................................................................................4 - 12
Security ....................................................................................................................................................... 4 - 13
Basic Security...........................................................................................................................................4 - 14
CyberSentry ..............................................................................................................................................4 - 16
Communications .................................................................................................................................... 4 - 23
Modbus Protocol.....................................................................................................................................4 - 23
RS485............................................................................................................................................................4 - 28
WiFi................................................................................................................................................................4 - 28
USB ................................................................................................................................................................4 - 31
Ethernet Ports...........................................................................................................................................4 - 31
Routing.........................................................................................................................................................4 - 33
DNP Protocol.............................................................................................................................................4 - 36
DNP / IEC104 Point Lists ......................................................................................................................4 - 37
IEC 60870-5-104 .....................................................................................................................................4 - 40
IEC 60870-5-103 .....................................................................................................................................4 - 41
IEC 61850....................................................................................................................................................4 - 42
Remote Modbus Device.......................................................................................................................4 - 45
Transient Recorder ................................................................................................................................ 4 - 46
Data Logger .............................................................................................................................................. 4 - 48
Fault Reports ............................................................................................................................................ 4 - 50
Event Data ................................................................................................................................................. 4 - 52
Flex States.................................................................................................................................................. 4 - 52
Front Panel ................................................................................................................................................ 4 - 52
Programmable LEDs..............................................................................................................................4 - 52
Programmable Pushbuttons.............................................................................................................4 - 53
Tab Pushbuttons.....................................................................................................................................4 - 58
Annunciator...............................................................................................................................................4 - 61
Display Properties ..................................................................................................................................4 - 63
Default Screens........................................................................................................................................4 - 64
Home Screens..........................................................................................................................................4 - 65
Resetting..................................................................................................................................................... 4 - 66
Installation................................................................................................................................................. 4 - 66
System ................................................................................................................................................4 - 68
Current Sensing....................................................................................................................................... 4 - 68
Voltage Sensing ...................................................................................................................................... 4 - 69
Traditional VT............................................................................................................................................4 - 69
Power System .......................................................................................................................................... 4 - 70
Motor............................................................................................................................................................ 4 - 71
Setup.............................................................................................................................................................4 - 71
Variable Frequency Drives.................................................................................................................4 - 76
Preset Values ............................................................................................................................................4 - 81
Switching Device .................................................................................................................................... 4 - 82
Breakers ......................................................................................................................................................4 - 82
Contactor....................................................................................................................................................4 - 84
FlexCurves .................................................................................................................................................4 - 86
Inputs...................................................................................................................................................4 - 88
Contact Inputs ......................................................................................................................................... 4 - 88
Virtual Inputs ............................................................................................................................................ 4 - 91
Analog Inputs ........................................................................................................................................... 4 - 93
Remote Inputs.......................................................................................................................................... 4 - 97
Outputs ...............................................................................................................................................4 - 98
Output Relays .......................................................................................................................................... 4 - 98
Output Relay 1 (F1) Trip..................................................................................................................... 4 - 100
869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL III
Output Relay 2 (F4) programmed as Close..............................................................................4 - 102
Auxiliary Output Relays ....................................................................................................................4 - 104
Output Relay 3 (F7) Start Inhibit....................................................................................................4 - 106
Virtual Outputs ......................................................................................................................................4 - 106
Analog Outputs.....................................................................................................................................4 - 107
Protection....................................................................................................................................... 4 - 108
Motor Elements..................................................................................................................................... 4 - 110
Percent Differential.............................................................................................................................4 - 110
Thermal Model (49)..............................................................................................................................4 - 117
Current Unbalance (46).....................................................................................................................4 - 138
Mechanical Jam (50LR) .....................................................................................................................4 - 143
Undercurrent (37).................................................................................................................................4 - 146
Loss of Excitation (40).........................................................................................................................4 - 149
Overload Alarm.....................................................................................................................................4 - 155
Short Circuit............................................................................................................................................4 - 157
Ground Fault (50SG)............................................................................................................................4 - 160
Acceleration Time................................................................................................................................4 - 164
Underpower (37P) ................................................................................................................................4 - 167
2-Speed Motor.......................................................................................................................................4 - 170
2-Speed Thermal Model....................................................................................................................4 - 170
2-Speed Acceleration.........................................................................................................................4 - 171
2-Speed Undercurrent.......................................................................................................................4 - 174
Current Elements .................................................................................................................................4 - 176
Inverse Time Overcurrent Curves.................................................................................................4 - 176
Percent of Load-To-Trip....................................................................................................................4 - 183
Phase Time Overcurrent Protection (51P).................................................................................4 - 184
Phase Instantaneous Overcurrent Protection (50P)............................................................4 - 187
Phase Directional Overcurrent Protection (67P)....................................................................4 - 189
Neutral Time Overcurrent Protection (51N).............................................................................4 - 192
Neutral Instantaneous Overcurrent Protection (50N).........................................................4 - 195
Neutral Directional Overcurrent Protection (67N)................................................................4 - 198
Ground Time Overcurrent Protection (51G).............................................................................4 - 203
Ground Instantaneous Overcurrent Protection (50G).........................................................4 - 205
Negative Sequence Instantaneous Overcurrent Protection (50_2)..............................4 - 207
Voltage Elements .................................................................................................................................4 - 210
Phase Reversal (47) .............................................................................................................................4 - 211
Undervoltage Curves .........................................................................................................................4 - 213
Phase Undervoltage Protection (27P).........................................................................................4 - 214
Phase Overvoltage Protection (59P)............................................................................................4 - 217
Auxiliary Undervoltage (27X)..........................................................................................................4 - 220
Auxiliary Overvoltage Protection (59X)......................................................................................4 - 223
Neutral Overvoltage Protection (59N)........................................................................................4 - 226
Negative Sequence Overvoltage Protection (59_2).............................................................4 - 229
Volts per Hertz (24) ..............................................................................................................................4 - 231
Impedance Elements ......................................................................................................................... 4 - 236
Out-of-step (78).....................................................................................................................................4 - 238
Power Elements....................................................................................................................................4 - 243
Directional Power (32)........................................................................................................................4 - 244
Reactive Power (40Q) .........................................................................................................................4 - 249
Frequency Elements...........................................................................................................................4 - 252
Underfrequency (81U) .......................................................................................................................4 - 252
Overfrequency (81O) ..........................................................................................................................4 - 255
Frequency Rate of Change (81R)..................................................................................................4 - 258
Monitoring......................................................................................................................................4 - 262
Breaker...................................................................................................................................................... 4 - 262
Trip and Close Circuit Monitoring.................................................................................................4 - 262
Breaker Arcing Current......................................................................................................................4 - 270
Breaker Health ......................................................................................................................................4 - 273
IV 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL
Broken Rotor Bar ..................................................................................................................................4 - 277
Electrical Signature Analysis (ESA) ...............................................................................................4 - 282
Stator Inter-turn Fault ........................................................................................................................4 - 293
Functions..................................................................................................................................................4 - 297
Power Factor.......................................................................................................................................... 4 - 297
Demand....................................................................................................................................................4 - 302
Pulsed Outputs...................................................................................................................................... 4 - 310
Digital Counters....................................................................................................................................4 - 313
Harmonic Detection............................................................................................................................4 - 316
Speed .........................................................................................................................................................4 - 319
RTD Temperature .................................................................................................................................4 - 324
RTD Trouble.............................................................................................................................................4 - 329
Loss of Communications ..................................................................................................................4 - 330
Control..............................................................................................................................................4 - 332
Setpoint Group.......................................................................................................................................4 - 332
Start Supervision...................................................................................................................................4 - 335
Thermal Inhibit......................................................................................................................................4 - 336
Maximum Starting Rate....................................................................................................................4 - 338
Time Between Starts ..........................................................................................................................4 - 340
Restart Delay .........................................................................................................................................4 - 341
Reduced Voltage Starting.................................................................................................................4 - 342
Local Control Mode (breakers and switches) ..........................................................................4 - 346
Breaker Control .....................................................................................................................................4 - 356
Contactor Control.................................................................................................................................4 - 359
Switch Control (9)..................................................................................................................................4 - 362
Virtual Input Control............................................................................................................................4 - 365
Trip Bus......................................................................................................................................................4 - 366
Breaker Failure (50BF) ........................................................................................................................4 - 368
Setup..........................................................................................................................................................4 - 369
Initiate .......................................................................................................................................................4 - 371
Arc Flash Protection ............................................................................................................................4 - 373
VT Fuse Failure (VTFF) .........................................................................................................................4 - 375
FlexLogic .........................................................................................................................................4 - 377
Timers ........................................................................................................................................................4 - 387
Non-volatile Latches...........................................................................................................................4 - 387
FlexLogic Equation...............................................................................................................................4 - 388
Viewing FlexLogic Graphics............................................................................................................ 4 - 390
FlexElements...........................................................................................................................................4 - 391
Testing..............................................................................................................................................4 - 399
Simulation................................................................................................................................................4 - 399
Setup..........................................................................................................................................................4 - 400
Pre-Fault...................................................................................................................................................4 - 400
Fault ...........................................................................................................................................................4 - 401
Post-Fault ................................................................................................................................................4 - 402
Test LEDs ..................................................................................................................................................4 - 403
Contact Inputs .......................................................................................................................................4 - 403
Output Relays ........................................................................................................................................4 - 403
Ethernet Loopback Test.....................................................................................................................4 - 404
5.STATUS Summary ............................................................................................................................................. 5 - 2
Configurable SLD.......................................................................................................................................5 - 2
Annunciator .................................................................................................................................................5 - 3
Tab Pushbuttons........................................................................................................................................5 - 3
Motor...................................................................................................................................................... 5 - 5
Breakers ............................................................................................................................................... 5 - 7
869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL V
Switches................................................................................................................................................5 - 7
Last Trip Data .....................................................................................................................................5 - 8
Arc Flash ...............................................................................................................................................5 - 8
Contact Inputs....................................................................................................................................5 - 8
Output Relays.....................................................................................................................................5 - 9
Virtual Inputs.......................................................................................................................................5 - 9
Virtual Outputs................................................................................................................................5 - 10
Flex State...........................................................................................................................................5 - 10
Communications............................................................................................................................5 - 11
GOOSE Rx and Tx ....................................................................................................................................5 - 11
Information.......................................................................................................................................5 - 15
Main CPU.....................................................................................................................................................5 - 15
Comms CPU...............................................................................................................................................5 - 15
Hardware Versions.................................................................................................................................5 - 15
Environment..............................................................................................................................................5 - 16
Device Status...................................................................................................................................5 - 17
Clock ....................................................................................................................................................5 - 18
PTP Status..........................................................................................................................................5 - 18
6.METERING Summary..............................................................................................................................................6 - 4
Motor ......................................................................................................................................................6 - 5
Percent Differential Current ................................................................................................................. 6 - 5
Motor Load................................................................................................................................................... 6 - 5
Speed.............................................................................................................................................................. 6 - 6
Broken Rotor Bar....................................................................................................................................... 6 - 6
Stator Inter-Turn Fault............................................................................................................................ 6 - 7
Bearing, Mechanical and Stator Fault............................................................................................. 6 - 7
Short Circuit................................................................................................................................................. 6 - 9
Impedance........................................................................................................................................6 - 10
Positive Sequence Impedance..........................................................................................................6 - 10
Currents..............................................................................................................................................6 - 10
Voltages .............................................................................................................................................6 - 12
Frequency.........................................................................................................................................6 - 13
Harmonics 1(Harmonics 2)........................................................................................................6 - 14
Harmonic Detection.....................................................................................................................6 - 15
Power...................................................................................................................................................6 - 16
Energy.................................................................................................................................................6 - 17
Power Factor....................................................................................................................................6 - 18
Current Demand 1.........................................................................................................................6 - 18
Power Demand...............................................................................................................................6 - 19
Directional Power ..........................................................................................................................6 - 19
Arc Flash ............................................................................................................................................6 - 20
RTDs .....................................................................................................................................................6 - 20
RTD Maximums...............................................................................................................................6 - 21
Analog Inputs...................................................................................................................................6 - 21
FlexElements....................................................................................................................................6 - 21
7.RECORDS Events.....................................................................................................................................................7 - 1
Transient Records.............................................................................................................................7 - 2
Fault Reports.......................................................................................................................................7 - 2
Data Logger.........................................................................................................................................7 - 2
Motor Start Records ........................................................................................................................7 - 2
VI 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL
Motor Start Statistics...................................................................................................................... 7 - 3
Learned Data ..................................................................................................................................... 7 - 4
Remote Modbus Device................................................................................................................ 7 - 8
Breakers .............................................................................................................................................7 - 10
Breaker Arcing Current ........................................................................................................................7 - 10
Breaker Health......................................................................................................................................... 7 - 10
Digital Counters ..............................................................................................................................7 - 10
Remote Modbus Device..............................................................................................................7 - 11
Clear Records...................................................................................................................................7 - 13
8.MAINTENANCE Environmental Health Report.....................................................................................................8 - 1
Motor Health Report.......................................................................................................................8 - 3
General Maintenance..................................................................................................................... 8 - 6
In-service Maintenance..........................................................................................................................8 - 6
Out-of-service Maintenance................................................................................................................8 - 6
Unscheduled Maintenance (System Interruption) .....................................................................8 - 6
A.APPENDIX A Application Notes.............................................................................................................................A - 1
Contactor Current Supervision ...........................................................................................................A - 1
B.APPENDIX B Warranty.............................................................................................................................................. B - 1
Revision history.................................................................................................................................B - 1
Major Updates ............................................................................................................................................B - 2
869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL VII
VIII 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL
GE
Grid Solutions
869 Motor Protection System
Chapter 1: Introduction
Introduction
The Multilin 869 relay is a microprocessor-based unit intended for the management and
primary protection of medium and large sized motors. Base relay models provide thermal
overload and overcurrent protection plus a number of current and voltage based backup
functions.
Overview
The relay features an enhanced thermal model with custom curves, current unbalance
biasing, voltage dependent curves and running and stopped exponential cooling curves.
An optional RTD module allows for the thermal model RTD bias function. Motor start and
supervision functions include thermal inhibit, maximum starting rate, time between starts,
restart delay, acceleration time, and emergency restart. Mechanical jam, current
unbalance elements and VFD application support are also included as basic functions.
Stator differential, sensitive directional power and phase/neutral directional elements are
more advanced features.
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 USB port of any personal
computer.
869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 1–1
DESCRIPTION OF THE 869 MOTOR PROTECTION SYSTEM CHAPTER 1: INTRODUCTION
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:
feature and show all logic signals passed between individual features. Information related
to the selection of settings for each setpoint is also provided.
Setpoints. The logic diagrams include a reference to every setpoint related to a
Description of the 869 Motor 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 k Hz
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 digital 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 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 through 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
software for display and diagnostics.
1–2 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL
CHAPTER 1: INTRODUCTION DESCRIPTION OF THE 869 MOTOR PROTECTION SYSTEM
892825A4.CDR
Phase CT
RTD
27P
59P 59N
59_2
VTFF 81U 81O
87S
METERING
TRANSIENT RECORDER
EVENT RECORDER
FAULT REPORT
TRIP
52
CLOSE
MONITORING
50BF
51P
50P
67P
50_2
50LR
49
BUS
Breaker
32
869
Motor Protection System
Neutral CT
M
50G/N51G/N
67N
86
55
START
3
3
Ground CT
1
Differential
core
balance CT
3
37
47
50G
51G
Internal Summation Percent Differential
Core Balance Percent Differential
81R
40
40Q
78
24
66
38
49S
AFP
27P
LIGHT
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.
Figure 1-1: Single Line Diagram
Table 1-1: ANSI Device Numbers and Functions
ANSI Device Description
12/14 Over Speed Protection/ Under Speed Protection
24 Volts per Hertz
27P Phase Undervoltage
32 Directional Power
37 Undercurrent
37P Underpower
869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 1–3
38 Bearing RTD Temperature
40 Loss of Excitation
40Q Reactive Power
46 Current Unbalance
47 Phase Reversal
49 Thermal Model
49S Stator RTD Temperature
50BF Breaker Failure
50G Ground Instantaneous Overcurrent
DESCRIPTION OF THE 869 MOTOR PROTECTION SYSTEM CHAPTER 1: INTRODUCTION
ANSI Device Description
50SG Ground Fault
50LR Mechanical Jam
50N Neutral Instantaneous Overcurrent
50P Phase Instantaneous Overcurrent
50_2 Negative Sequence Instantaneous Overcurrent
51G Ground Time Overcurrent
51N Neutral Time Overcurrent
51P Phase Time Overcurrent
52 AC Circuit Breaker
55 Power Factor
59N Neutral Overvoltage
59P Phase Overvoltage
59X Auxiliary Overvoltage
59_2 Negative Sequence Overvoltage
66 Maximum Starting Rate
67N Neutral Directional Element
67P Phase Directional Element
78 Out-of-Step Protection
81O Overfrequency
81U Underfrequency
81R Frequency Rate of Change
86 Start Inhibit
87S Stator Differential
AFP Arc Flash Protection
VTFF Voltage Transformer Fuse Failure
Table 1-2: Other Device Functions
Description
Acceleration Time
Analog Input
Analog Output
Breaker Arcing Current (I2t)
Broken Rotor Bar
Switching Device Control
Breaker Control
Breaker Health
Data Logger
Demand
Digital Counters
Event Recorder
Fault Report
Flexelements
FlexLogic Equations
Flexstates
IEC 61850 Communications
Mechanical Jam
Metering: current, voltage, power, PF, energy, frequency, harmonics, THD
1–4 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL
CHAPTER 1: INTRODUCTION DESCRIPTION OF THE 869 MOTOR PROTECTION SYSTEM
Description
Modbus User Map
Motor Health Report
Motor Learned Data
Motor Start Records
Motor Start Statistics
Non-volatile Latches
OPC-UA Communications
Output Relays
Overload Alarm
Setpoint Groups (6)
Short Circuit
Stator Inter-Turn Fault
Trip Bus (6)
Transient Recorder (Oscillography)
Trip and Close Coil Monitoring
User-programmable LEDs
User-programmable Pushbuttons
Virtual Inputs (32)
Virtual Outputs (32)
Reduced Voltage Starting
RTD Temperature
869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 1–5
DESCRIPTION OF THE 869 MOTOR PROTECTION SYSTEM CHAPTER 1: INTRODUCTION
Setpoints
Device
System
Inputs
Outputs
Protection
Monitoring
Control
FlexLogic
S
tatus
Breakers
Contact Inputs
Output Relays
Virtual Inputs
Virtual Outputs
Targets
Motor
Metering
Records
Events
Transients
Motor Start Records
Breakers
Dig Counters
Clear Records
Currents
Voltages
Frequency
Harmonics
Harmonic Detection
Energy
RTDs
Data Logger
Fault Reports
Motor Start Statistics
Current Demand
Power Demand
Learned Data
Directional Power
Arc Flash
Arc Flash
Testing
PTP Status
Clock
Device Status
Information
Communications
Flex States
Last Trip Data
Summary
Power Factor
Analog Inputs
RTD Maximums
FlexElements
Summary
Switches
Motor
Impedance
Power
Figure 1-2: Main Menu Hierarchy
1–6 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL
CHAPTER 1: INTRODUCTION SECURITY OVERVIEW
Security Overview
The following security features are available:
BASIC SECURITY
The basic security feature is present in the default offering of the 869 relay. The
869 introduces the notion of roles for different levels of authority. Roles are used as login
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 869 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
device operations and configurations based on specific roles
devices using the Secure Shell (SSH) protocol, the
FASTPATH:
allows access to 869
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 869
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 869 device:
• Device Authentication – in which case the authentication is performed on the
device itself, using the predefined roles as users (No RADIUS involvement).
869
– 869 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 869
– 869 authentication using RADIUS server may be done only through EnerVista.
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.
869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 1–7
869 ORDER CODES CHAPTER 1: INTRODUCTION
NOTE
When both 869 device and server authentication are enabled, the 869 automatically
directs authentication requests to the 869
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 869
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 869
system.
869
device accounts to gain access to the
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 869 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 869.
869 Order Codes
NOTE:
NOTE:
1–8 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL
Support of some of the features described in the "Setpoints" section are order code
dependent. Each 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.
Refer to https://www.gegridsolutions.com/multilin/catalog/869.htm for available order
code combinations.
The information to specify an 869 relay is provided in the following Order Code figure:
CHAPTER 1: INTRODUCTION 869 ORDER CODES
869 E ** ** ** H * * A * N G * * * * * * * * * N *
Interface 869 | | | | |||||||||||||||||| 869 Motor Protection System
Application E | | | | | | | | | | | | | | | | | | | | | Standard
Phase Currents ³
Slot J Bank 1/2
P1| ||||||||||||||||||| 1A three-phase current inputs (J1)
P5| ||||||||||||||||||| 5A three-phase current inputs (J1)
Phase Currents ³
Slot K Bank 1
NN | | | | | | | | | | | | | | | | | | | No phase current inputs
P1 | | | | | | | | | | | | | | | | | | | 1A three-phase current inputs (K1)
P5 | | | | | | | | | | | | | | | | | | | 5A three-phase current inputs (K1)
Ground Currents G1 |||||||||||||||||| 1A ground input (J1)
G5|||||||||||||||||| 5A ground input (J1)
B1||||||||||||||||||
1A ground (J1) + 50:0.025A
(K1, included with current protection M option only)
B5||||||||||||||||||
5A ground (J1) + 50:0.025A
(K1, included with current protection M option only)
0B|||||||||||||||||| 50:0.025A (J1), only available if NN is selected for Slot K Bank 1
Power Supply L | | | | | | | | | | | | | | | | | 24 to 48 V DC
H | | | | | | | | | | | | | | | | | 110 to 250 V DC/110 to 230 V AC
Slot B - LV IO N |||||||||||||||| None
R|||||||||||||||| 6 X RTDS (Pt100, Ni100, Ni120)
S|||||||||||||||| 6 X RTDS (Pt100, Ni100, Ni120, Cu10)
Slot C- LV IO N | | | | | | | | | | | | | | | None
R | | | | | | | | | | | | | | | 6 X RTDS (Pt100, Ni100, Ni120)
S | | | | | | | | | | | | | | | 6 X RTDS (Pt100, Ni100, Ni120, Cu10)
Slot F - HV IO A
||||||||||||||||||||||||||||2 Form A (Vmon), 3 Form C, 7 Digital Inputs (Low/High Voltage, Int/Ext
Supply)
Slot G - HV IO N | | | | | | | | | | | | | None
A | | | | | | | | | | | | | 2 Form A, 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 IO N |||||||||||| None (High Voltage I/O)
F|||||||||||| 10 Digital Inputs + 4 Arc Flash Inputs
A|||||||||||| 2 Form A, 3 Form C, 7 Digital Inputs (Low/High Voltage, Int/Ext Supply)
Faceplate M | | | | | | | | | | | Basic = Membrane Keypad
G | | | | | | | | | | | Standard = Rugged Keypad
Current Protection S | | | |||||||
Basic: 12/14, 19, 37, 38, 46, 49, 50P, 50N, 50G, 50_2, 50LR(Mechanical
Jam), 51P, 51N, 51G, 66, 86
M|||||||||| Standard: Basic + 67P, 67N, 87S (2nd CT Bank required for 87S)
Voltage Monitoring and Protection S | | | | | | | | | Standard: 27P, 27X, 47, 59P, 59N, 59X, 81O, 81U, VTFF
P | | | | | | | | | Advanced : Standard + 32, 40, 40Q, 55, 59_2, 78
Control B | ||||||| Basic: Breaker/Contactor Control, Virtual Inputs
F|||||||| Standard: Basic + FlexLogic, 50BF, Trip Bus
T||||||||
Advanced HMI: Standard + Tab PBs, Annunciator Panel, Configurable
SLDs with Bay Control
Monitoring B
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Basic: Motor Health Report, Motor Start Report , Motor Learned Data,
Data Logger, Breakers Coil Monitoring, Breaker Arcing, Harmonics,
THD, Demand
C | | | | | | | Standard: Basic + Breaker Health Report, Broken Rotor Bar
A | | | | | | | Advanced: Standard + Harmonic Detection, Stator Inter-turn Fault
E | | | | | | | Extended: Advanced + ESA Functions
Communications S E
||||||||||Standard: Front USB, 1 x Rear RS485: Modbus RTU, DNP3.0, IEC60870-
5-103 + 1 x Ethernet (Modbus TCP, DNP)
1E
||||||||||Advanced: Front USB, 1 x Rear RS485 + 2 x Ethernet Fiber, MODBUS
RTU/TCP, DNP3.0, IEC 60870-5-103/104, 1588, SNTP, OPC-UA
1P||||| Advanced + PRP
2A||||| Advanced + IEC 61850
2E||||| Advanced + PRP + IEC 61850
3A||||| Advanced + Extended IEC 61850
3E||||| Advanced + PRP + Extended IEC 61850
Advanced Communications Connector N | | | | None
S | | | | ST, Multi-mode 1310 nm
C | | | | RJ45, Copper 10/100M
Figure 1-3: 869 Order Codes
869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 1–9
869 ORDER CODES CHAPTER 1: INTRODUCTION
892800BA.PDF
Wireless Communication N | | | None
W| | | WiFi 802.11
Security B | | Basic
A | | Advanced: CyberSentry Level 1
Future Option N| Not Available
1
Wye 469-869 Retrofit Kit, terminal block wiring assembly for wye (for
retrofit kit only)
2
Delta 469-869 Retrofit Kit, terminal block wiring assembly for delta
(for retrofit kit only)
FASTPATH:
FASTPATH:
Harsh Environment Coating is a standard feature on all 8 Series units.
Advanced security is only available with advanced communications (1E, 1P, 2A, 2E, 3A, 3E).
When the advanced communications option is selected, the Ethernet port on the main CPU
is disabled.
Retrofit order codes must be configured using the GE Multilin Online Store (OLS) based on
the existing relay order code and additional requirements.
Navigate to https://www.gegridsolutions.com/multilin/catalog/869.htm
and click Buy
Retrofit Kit for further information.
Accessories
• 18J0-0030 8 Series Depth Reducing Collar - 1 3/8"
• 18J0-0029 8 Series Depth Reducing Collar - 3"
• 8 Series Retrofit Kit, 469 to 869
1–10 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL
CHAPTER 1: INTRODUCTION SPECIFICATIONS
Specifications
To obtain the total operating time, i.e. from the presence of a trip condition to initiation of a
trip, add 8 ms output relay time to the operate times listed below.
Device
ANNUNCIATOR PANEL
Number of Elements: ........................................1 (36 indicators)
Layout:.....................................................................Grid of 2x2 or 3x3
Data Storage:........................................................Non-volatile memory
Mode:........................................................................Self-reset, latched, acknowledgeable
Display Text:..........................................................3 lines of 15 characters maximum
Visual Indication:.................................................Flashing: 2Hz @ 50% duty cycle
CUSTOM CONFIGURATIONS
Config Mode:.........................................................Simplified, Regular
Protection
ACCELERATION TIME (37P)
Acceleration Current: ........................................1.00 to 10.00 x FLA in steps of 0.01
Operating Mode: .................................................Definite Time, Adaptive
Timing Accuracy:................................................±100 ms or ±0.5% of total time (whichever is greater),
applicable to definite time mode only
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,
whichever is greater
For > 0.2 x CT: ± 1.5% of reading
Operate Time:.......................................................4 ms at >6 x Pickup at 60 Hz
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
AUXILIARY OVERVOLTAGE (59X)
Operating Parameter:.......................................Vx (Phasor)
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 240 V
Overvoltage Curves: ..........................................Definite Time, Inverse Time, FlexCurves A/B/C/D
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
Pickup Accuracy:.................................................‘Auxiliary voltage input channel error
Operate Time:.......................................................< 30 ms at 1.1 x pickup at 60Hz
Curve Timing Accuracy: ..................................at >1.1 x PKP: 3.5% of operate time ± ½ cycle (whichever is
greater) from pickup to operate
Timer Accuracy:..................................................± 3% of operate time or ± ½ cycle (whichever is greater)
869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 1–11
SPECIFICATIONS CHAPTER 1: INTRODUCTION
CURRENT UNBALANCE (46)
Unbalance: ............................................................Unbal = (I2 / I1) x A
A
= (I
A
factor
factor
avg
= 1 if l
/ FLA) if l
avg
Trip/Alarm Pickup Level:..................................4.0 to 50.0% in steps of 0.1%
Trip Operating Curves: .....................................Definite Time: T=TDM sec
Inverse Time: T= (TDM/[Unbal]
Trip Pickup Delay:...............................................0.00 to 180.00 s in steps of 0.01 s when Trip Curve = Definite
Time
Trip Time Dial Multiplier (TDM):.....................0.00 to 180.00 in steps of 0.01 when Trip Curve = Inverse
Curve
Trip Maximum Time: .........................................0.00 to 1000.00 s in steps of 0.01 s
Trip Minimum Time:........................................... 0.00 to 1000.00 s in steps of 0.01 s
Trip Reset Time:................................................... 0.00 to 1000.00 s in steps of 0.01 s
Alarm Time Delay:..............................................0.00 to 180.00 s in steps of 0.01 s
Single Phasing Pickup Level: .........................unbalance level > 40% or when I
in any phase is less than the cutoff current
Single Phasing Time Delay: ...........................2 seconds
Pickup Accuracy: ................................................±2%
Operate Time: ...................................................... <2 cycles at 1.10 x pickup (NOTE 1)
Timing Accuracy:................................................±3% of delay setting time or ± 20 ms, whichever is greater
Element: ..................................................................Trip and Alarm
Single Phasing Element: .................................. Trip
factor
>= FLA
x 100%
< FLA
avg
2
) sec
>=25%FLA and current
avg
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 (NOTE 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
1–12 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL
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
GROUND FAULT (50G)
Pickup Level :.........................................................For 1A/5A Ground CT Type: 0.01 to 10.00 x CT in steps of 0.01
x CT;
For 50/0.025 Ground CT Type: 0.50 to 15.00 A in steps of
0.01A
Dropout Level: ......................................................97 to 98% of Pickup
Alarm Pickup Delay:...........................................0.00 to 180.00 s in steps of 0.01 s
Trip Pickup Start Delay:....................................0.00 to 180.00 s in steps of 0.01 s
Trip Pickup Run Delay:......................................0.00 to 180.00 s in steps of 0.01 s
Magnitude Accuracy:........................................50:0.025A CT: ± 5% of reading or ± 0.2A (in primary)
whichever is greater
1A/5A CT: 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:.......................................................<16 ms @ 60Hz (I > 2.0 x PKP), with 0 ms time delay
<20 ms @ 50Hz (I > 2.0 x PKP), with 0 ms time delay
Timing Accuracy:................................................±3% of delay setting at ±1 cycle (whichever is greater) from
pickup to operate
LOSS OF EXCITATION (40)
Operating Condition:.........................................Positive-sequence impedance
Characteristic: ......................................................2 independent negative mho circles (LOE circle 1, 2)
Circle 1(2) Diameter: ..........................................0.1 to 300.0 Ω (in secondary) in steps of 0.1Ω
Circle 1(2) Offset: .................................................0.1 to 300.0 Ω (in secondary) in steps of 0.1Ω
Reach (Impedance) Accuracy:......................± 5%
Under Voltage (UV) Supervision Level: ......0.00 to 1.50 x VT in steps of 0.01 x VT
UV Pickup Accuracy: .........................................as per phase voltage inputs
Pickup Delay: ........................................................0.00 to 600.00 s in steps of 0.01 s
Timer Accuracy:..................................................± 3% of delay setting or ± ½ cycle (whichever is greater)
Operate Time:.......................................................< 3 cycles
MECHANICAL JAM
Operating Condition:.........................................Phase Overcurrent
Arming Condition:...............................................Motor not starting
Pickup Level:..........................................................1.00 to 10.00 x FLA in steps of 0.01
Dropout Level: ......................................................97 to 98% of Pickup
Level Accuracy:....................................................For 0.1 to 2.0 x CT: ±0.5% of reading; at > 2.0 x CT rating:
±1.5% of reading
Pickup Delay: ........................................................0.10 to 180.00 s in steps of 0.01
Dropout Delay:.....................................................0.00 to 180.00 s in steps of 0.01
Timer Accuracy:..................................................±3% of delay setting time or ±20 ms, whichever is greater
869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 1–13
SPECIFICATIONS CHAPTER 1: INTRODUCTION
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
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
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
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
1–14 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL
CHAPTER 1: INTRODUCTION SPECIFICATIONS
OUT-OF-STEP (78)
Characteristic: ......................................................Single blinder with offset mho supervisory
Measured Impedance:......................................Positive-sequence
Current Supervision Pickup Level:...............0.05 to 10.00 x CT in steps of 0.01 x CT
Fwd/Reverse Reach (sec.): ..............................0.10 to 500.00 Ω in steps of 0.01 Ω
Left and Right Blinders (sec.): ........................0.10 to 500.00 Ω in steps of 0.01 Ω
Impedance Accuracy: ......................................±5%
Blinder RCA: ...........................................................40 to 90º in steps of 1º
Angle Accuracy: ..................................................± 2º
Timer Accuracy:..................................................±3% of operate time or ±¼ cycle (whichever is greater)
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
FASTPATH:
Typical times are average Operate Times including variables such as frequency change
instance, test method, etc., and may vary by ± 0.5 cycles.
OVERLOAD ALARM
Operating Parameter:.......................................Average phase current (RMS)
Pickup Level:..........................................................0.50 to 3.00 x FLA in steps of 0.01 x FLA
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 × CT rating ±1.5% of reading
Pickup Delay: ........................................................0.00 to 180.00 s in steps of 0.01 s
Dropout Delay:.....................................................0.00 to 180.00 s in steps of 0.01 s
Timer Accuracy: ..................................................±3% of delay setting or ± ½ cycle (whichever is greater) from
pickup to operate
PERCENT DIFFERENTIAL (87S)
Methods: .................................................................Internal summation and Core balance
Pickup Level:..........................................................0.05 to 1.00 x CT in steps of 0.01
Slope 1 and 2:.......................................................1 to 100% in steps of 1
Break 1:....................................................................0.50 to 2.00 x CT in steps of 0.01
Break 2:....................................................................2.00 to 30.00 x CT in steps of 0.01
Operate Time:.......................................................<16 ms at >3 × Pickup at 60 Hz;
<20 ms at >3 × Pickup at 50 Hz
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
869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 1–15
SPECIFICATIONS CHAPTER 1: INTRODUCTION
NOTE
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
2
t, I4t
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
FASTPATH:
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)
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
PHASE REVERSAL
Phase Reversal Condition:..............................V2/V1=100% when phase to phase voltages are greater than
50% of VT
Configuration: ......................................................ABC or ACB phase rotation
Pickup/Dropout Time Delay: .........................0.00 to 180.00 s in steps of 0.01 s
Timer Accuracy:.................................................. ±3% of delay setting or ±1% cycle (whichever is greater)
from pickup to operate
1–16 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL
CHAPTER 1: INTRODUCTION SPECIFICATIONS
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
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 Time)
Dropout Time Delay: .........................................0.000 to 6000.000 s in steps of 0.001s (Definite Time)
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
REACTIVE POWER (40Q)
Operating Condition:.........................................Three-phase reactive power
Positive/Negative var Trip/Alarm Pickup
Level:....................................................................0.02 to 2.00 x Rated in steps of 0.01
Positive/Negative var Trip/Alarm Pickup
Level:....................................................................1 to 25000 kvar in steps of 1 kvar
Pickup Level Accuracy: ....................................±1.0% of reading
Positive/Negative var Trip/Alarm Pickup
Delay:..................................................................0.00 to 600.00 s in steps of 0.01 s
Timer Accuracy:..................................................±3.0% of delay time or ±10 ms, whichever is greater
Hysteresis:..............................................................2 to 3%
Operate Time:.......................................................< 45 ms at 60 Hz
< 50 ms at 50 Hz
Elements: ................................................................Trip and Alarm
RTD PROTECTION
Pickup:......................................................................1°C to 250°C in steps of 1°C
Hysteresis:..............................................................2°C
Timer Accuracy:..................................................<2 s
Elements: ................................................................Trip and Alarm
869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 1–17
SPECIFICATIONS CHAPTER 1: INTRODUCTION
SHORT CIRCUIT
Inputs: ......................................................................RMS Phase Currents
Pickup Level: .........................................................1.00 to 30.00 x CT in steps of 0.01 x CT
Dropout Level:......................................................97 to 98% of Pickup
Pickup Delay:........................................................0.00 to 180.00 s in steps of 0.01 s
Level Accuracy: ...................................................For 1.0 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: ...................................................... <16 ms @ 60Hz (I > 2.0 x PKP), with 0 ms time delay
<20 ms @ 50Hz (I > 2.0 x PKP), with 0 ms time delay
Timer Accuracy:.................................................. ±3% of delay setting or ±1/2 cycle (whichever is greater)
from pickup to operate
Elements:................................................................Trip or Alarm
THERMAL MODEL (49)
Thermal Overload Curves:..............................Motor curve, FlexCurve, Standard Motor curve with voltage
dependent function, FlexCurve with voltage dependent
function, IEC curve
Motor Curve Time Multiplier:......................... 0.00 to 25.00 in steps of 0.01
FlexCurve Time Multiplier:..............................0.00 to 600.00 in steps of 0.01
IEC Curve Time Constant:...............................0 to 1000 in steps of 1
Thermal Overload Pickup: ..............................Overload factor x FLA
Overload Factor (OL): ........................................1.00 to 1.50 in steps of 0.01
Motor Full Load Current (FLA): ......................1 to 5000 A in steps of 1
Standard Overload Curve, Cutoff
Effect:.................................................................
Standard Overload Curve, Shift
Effect:.................................................................
Motor Rated Voltage:........................................1 to 50000 V in steps of 1
Thermal Model Biasing: ...................................Current Unbalance, RTDs
Thermal Model Update Rate: ........................ 1 power cycle
Stopped/Running Cool Time Constants:.. 1 to 1000 min. in steps of 1
Stopped/Running Cool Time Constant
Decay: ................................................................Exponential
Hot/Cold Safe Stall Ratio:................................ 0.01 to 1.00 in steps of 0.01
Current Accuracy: .............................................. Per phase current inputs
Current Source:.................................................... True RMS
Timer Accuracy:.................................................. ±100 ms or ±2%, whichever is greater
Timer Accuracy for Voltage Dependent
Overload:...........................................................±100 ms or ±4%, whichever is greater
UNDERCURRENT (37)
Operating Parameter: ......................................Per-phase current Ia, Ib, Ic (Phasor)
Trip/Alarm Pickup Level:..................................0.10 to 0.95 x FLA in steps of 0.01 x FLA
Dropout Level:......................................................102 to 103% of Pickup
Trip/Alarm Time Delay: .................................... 0.00 to 180.00 s in steps of 0.01 s
Pickup Accuracy: ................................................For 0.1 to 2.0 x CT: ±0.5% of reading or ±0.4% of rated,
whichever is greater
Operate Time: ...................................................... <45 ms at 60 Hz,<50 ms at 50 Hz
Timer Accuracy:.................................................. ±3% of delay setting or ± 2 power cycles (whichever is
greater) from pickup to operate
Stages:..................................................................... Trip and Alarm
1–18 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL
CHAPTER 1: INTRODUCTION SPECIFICATIONS
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.
UNDERPOWER
Operating Condition:.........................................Three-phase real power
Number of Elements: ........................................1, alarm and trip stages
Trip/Alarm Pickup Level: ..................................1 to 25000 kW in steps of 1
Pickup Level Accuracy: ....................................±1.0% of reading
Hysteresis:..............................................................3%
Trip/Alarm Pickup Delay:.................................0 to 180.00 s in steps of 0.01
Timer Accuracy: ..................................................±3% of delay time or ±10 ms, whichever is greater, pick up to
operate
Operate Time:.......................................................<45 ms at 60 Hz; <50 ms at 50 Hz (NOTE 1)
VOLTS PER HERTZ (24)
Voltages:..................................................................Phasor only
Pickup Level:..........................................................0.80 to 4.00 in steps of 0.01 pu
Dropout Level: ......................................................97 to 98% of pickup
Level Accuracy:....................................................±0.02 pu
Timing Curves: .....................................................Definite T ime; IEC Inverse A/B/C; FlexCurves A, B, C, and D
TD Multiplier: .........................................................0.05 to 600.00 s in steps of 0.01
Reset Delay:...........................................................0.00 to 6000.000 s in steps of 0.01
Timer Accuracy:..................................................±3% of operate time or ±15 cycles (whichever is greater) for
values greater than 1.1 x pickup
Number of Elements: ........................................2
Number of Elements: ........................................1
(NOTE 1) When the setpoint “Motor Load Filter Interval” is programmed as non-zero, it
might increase the trip/alarm times by 16.7 ms (or 20 ms at 50 Hz) for each additional
cycle in the filter interval for the following protection elements: Acceleration Time, Current
Unbalance, Mechanical Jam, Overload Alarm, Thermal Model, Undercurent, Power Factor,
and Underpower.
869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 1–19
SPECIFICATIONS CHAPTER 1: INTRODUCTION
Control
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
BREAKER CONTROL
Operation: ..............................................................Asserted FlexLogic Operands
Function:.................................................................Opens/closes, blocks, bypasses blocks to the feeder breaker
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
LOCAL CONTROL MODE
Number of Elements: ........................................ 1
Select Before Operate Mode: ........................Disabled, Enabled
Mode:........................................................................ Local Mode ON, Local Mode OFF
Display Status:.....................................................LM (local mode) displayed in banner
Tagging: ..................................................................Disabled, Enabled
MAXIMUM STARTING RATE
Monitored Time Interval:................................. 1 to 300 minutes in steps of 1
Maximum Number of Starts:......................... 1 to 16 starts in steps of 1
Timer Accuracy:.................................................. ±2s or ±1% of total time (whichever is greater)
RESTART DELAY
Restart Delay:....................................................... 0 to 65000 seconds in steps of 1
Timer Accuracy:.................................................. ±2s or ±1% of total time (whichever is greater)
REDUCED VOLTAGE START
Mode:........................................................................ Current Only, Current and Timer, Current or Timer
Start Current Level:............................................0.25 to 3.00 of FLA, in steps of 0.01
Start Timer: ............................................................ 1.0 to 600.0 s in steps of 0.1
SWITCH CONTROL
Operation: ..............................................................Local (PB control and SLD) and Remote (asserted FlexLogic
operands)
Function:.................................................................Opens/Closes the disconnect switch
Timers:.....................................................................0.000 to 6000.000 s in steps of 0.001 s
TIME BETWEEN STARTS
Time Between Starts:........................................0 to 300 minutes in steps of 1
Timer Accuracy:.................................................. ±2s or ±1% of total time (whichever is greater)
1–20 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL
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