GE B90 Instruction Manual

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LISTED

52TL

IND.CONT. EQ.

E83849

IISO 9001

Grid Solutions

B90

Low Impedance Bus Differential

System

Instruction Manual

Product version: 7.6x

GE publication code: 1601-0115-AF1 (GEK-130992)

1601-0115-AF1

Copyright © 2017 GE Multilin Inc. All rights reserved. B90 Low Impedance Bus Differential System Instruction Manual for version 7.6x. B90, FlexLogic, FlexElement, FlexCurve, FlexAnalog, FlexInteger, FlexState, EnerVista,

CyberSentry, HardFiber, Multilin, and GE Multilin are trademarks or 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: 1601-0115-AF1 (June 2017)

B90 Low Impedance Bus Differential System

Table of contents

1INTRODUCTION 1.1 Safety symbols and definitions ........................................................................... 1-1

1.1.1 General cautions and warnings.................................................................................... 1-1

1.2 For further assistance........................................................................................... 1-2

2PRODUCT

DESCRIPTION

2.1 Product description ............................................................................................... 2-1

2.2 Security .................................................................................................................... 2-4

2.3 Order codes............................................................................................................. 2-7

2.3.1 Replacement modules.....................................................................................................2-12

2.4 Signal processing.................................................................................................2-13

2.4.1 UR signal processing ........................................................................................................2-13

2.5 Specifications........................................................................................................ 2-15

2.5.1 Protection elements..........................................................................................................2-16

2.5.2 User-programmable elements ....................................................................................2-17

2.5.3 Monitoring..............................................................................................................................2-18

2.5.4 Metering..................................................................................................................................2-19

2.5.5 Inputs.......................................................................................................................................2-19

2.5.6 Power supply........................................................................................................................2-20

2.5.7 Outputs....................................................................................................................................2-21

2.5.8 Communications ................................................................................................................2-23

2.5.9 Inter-relay communications..........................................................................................2-24

2.5.10 CyberSentry security.........................................................................................................2-25

2.5.11 Graphical front panel........................................................................................................2-25

2.5.12 Environmental......................................................................................................................2-26

2.5.13 Type tests...............................................................................................................................2-27

2.5.14 Production tests..................................................................................................................2-27

2.5.15 Approvals ...............................................................................................................................2-28

2.5.16 Maintenance.........................................................................................................................2-28

3 INSTALLATION 3.1 Unpack and inspect ............................................................................................... 3-1

3.2 Panel cutouts.......................................................................................................... 3-2

3.2.1 Rear terminal layout ........................................................................................................... 3-5

3.3 Wiring.......................................................................................................................3-7

3.3.1 Typical wiring ......................................................................................................................... 3-7

3.3.2 Dielectric strength..............................................................................................................3-13

B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL iii

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3.3.3 Control power......................................................................................................................3-13

3.3.4 CT and VT modules............................................................................................................3-14

3.3.5 Contact inputs and outputs.......................................................................................... 3-15

3.3.6 RS232 port.............................................................................................................................3-26

3.3.7 CPU communication ports ............................................................................................3-27

3.3.8 IRIG-B.......................................................................................................................................3-29

3.4 Direct input and output communications .......................................................3-30

3.4.1 Description............................................................................................................................3-30

3.4.2 Fiber: LED and ELED transmitters............................................................................... 3-33

3.4.3 Fiber laser transmitters...................................................................................................3-33

3.4.4 G.703 interface....................................................................................................................3-34

3.4.5 RS422 interface................................................................................................................... 3-38

3.4.6 RS422 and fiber interface ..............................................................................................3-40

3.4.7 G.703 and fiber interface................................................................................................3-41

3.4.8 IEEE C37.94 interface.......................................................................................................3-41

3.4.9 C37.94SM interface...........................................................................................................3-44

3.5 Activate relay ........................................................................................................3-47

3.6 Install software.....................................................................................................3-48

3.6.1 EnerVista communication overview......................................................................... 3-48

3.6.2 System requirements....................................................................................................... 3-49

3.6.3 Install software....................................................................................................................3-50

3.7 Add device to software........................................................................................3-51

3.7.1 Set IP address in UR.......................................................................................................... 3-51

3.7.2 Configure serial connection..........................................................................................3-56

3.7.3 Configure Ethernet connection................................................................................... 3-57

3.7.4 Configure modem connection.....................................................................................3-59

3.7.5 Automatic discovery of UR devices...........................................................................3-59

3.8 Connect to the B90...............................................................................................3-60

3.8.1 Connect to the B90 in EnerVista .................................................................................3-60

3.8.2 Use Quick Connect via the front panel RS232 port............................................ 3-61

3.8.3 Use Quick Connect via a rear Ethernet port..........................................................3-62

3.9 Set up CyberSentry and change default password........................................3-63

3.10 Import settings .....................................................................................................3-63

3.11 Connect to D400 gateway...................................................................................3-64

3.11.1 Oscillography files.............................................................................................................. 3-64

3.11.2 Event records.......................................................................................................................3-64

3.11.3 Log files...................................................................................................................................3-64

3.11.4 Setting files............................................................................................................................3-65

4INTERFACES 4.1 EnerVista software interface................................................................................4-1

4.1.1 Introduction.............................................................................................................................4-1

4.1.2 Settings files ............................................................................................................................4-1

4.1.3 Event viewing..........................................................................................................................4-2

4.1.4 File support..............................................................................................................................4-3

4.1.5 EnerVista main window.....................................................................................................4-3

4.1.6 Protection summary window..........................................................................................4-4

4.1.7 Settings templates................................................................................................................4-5

4.1.8 Secure and lock FlexLogic equations..........................................................................4-9

4.1.9 Settings file traceability...................................................................................................4-12

4.2 Front panel interface ...........................................................................................4-14

4.2.1 Front panel............................................................................................................................4-14

4.2.2 Front panel display............................................................................................................ 4-16

4.2.3 Front panel navigation keys .........................................................................................4-37

4.2.4 LED indicators......................................................................................................................4-39

4.2.5 Front panel labelling.........................................................................................................4-43

iv B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL

TABLE OF CONTENTS

4.2.6 Menu navigation.................................................................................................................4-50

4.2.7 Change settings..................................................................................................................4-52

4.2.8 View actual values.............................................................................................................4-57

4.2.9 Change passwords............................................................................................................4-58

4.2.10 Invalid password entry ....................................................................................................4-60

4.3 Logic diagrams.....................................................................................................4-60

4.4 FlexLogic design using Engineer .......................................................................4-61

4.4.1 Design logic...........................................................................................................................4-63

4.4.2 Send file to and from device .........................................................................................4-73

4.4.3 Monitor logic .........................................................................................................................4-74

4.4.4 View front panel and print labels................................................................................4-75

4.4.5 Generate connectivity report........................................................................................4-76

4.4.6 Preferences...........................................................................................................................4-76

4.4.7 Toolbars..................................................................................................................................4-80

5 SETTINGS 5.1 Settings menu......................................................................................................... 5-1

5.2 Overview.................................................................................................................. 5-3

5.2.1 Introduction to elements .................................................................................................. 5-3

5.3 Product setup.......................................................................................................... 5-5

5.3.1 B90 function............................................................................................................................ 5-5

5.3.2 Security ..................................................................................................................................... 5-5

5.3.3 Display properties..............................................................................................................5-23

5.3.4 Graphical front panel........................................................................................................5-24

5.3.5 Clear relay records.............................................................................................................5-36

5.3.6 Communications ................................................................................................................5-37

5.3.7 Modbus user map..............................................................................................................5-99

5.3.8 Real-time clock....................................................................................................................5-99

5.3.9 User-programmable fault report.............................................................................5-104

5.3.10 Oscillography..................................................................................................................... 5-105

5.3.11 User-programmable LEDs ..........................................................................................5-107

5.3.12 User-programmable self-tests .................................................................................5-111

5.3.13 Control pushbuttons......................................................................................................5-112

5.3.14 User-programmable pushbuttons..........................................................................5-113

5.3.15 Flex state parameters ...................................................................................................5-119

5.3.16 User-definable displays................................................................................................ 5-120

5.3.17 Direct inputs and outputs............................................................................................5-122

5.3.18 Installation.......................................................................................................................... 5-128

5.4 System setup.......................................................................................................5-129

5.4.1 AC inputs .............................................................................................................................5-129

5.4.2 Power system.................................................................................................................... 5-129

5.4.3 FlexCurves...........................................................................................................................5-130

5.4.4 Bus..........................................................................................................................................5-137

5.5 FlexLogic ..............................................................................................................5-139

5.5.1 FlexLogic operands ........................................................................................................ 5-139

5.5.2 FlexLogic rules..................................................................................................................5-147

5.5.3 FlexLogic evaluation......................................................................................................5-147

5.5.4 FlexLogic example ..........................................................................................................5-148

5.5.5 FlexLogic equation editor............................................................................................ 5-153

5.5.6 FlexLogic timers...............................................................................................................5-153

5.5.7 Non-volatile latches.......................................................................................................5-153

5.6 Grouped elements..............................................................................................5-154

5.6.1 Overview..............................................................................................................................5-154

5.6.2 Setting group 1.................................................................................................................5-154

5.6.3 Bus differential..................................................................................................................5-155

5.6.4 Breaker failure (ANSI 50BF).........................................................................................5-160

B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL v

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5.6.5 Voltage elements............................................................................................................ 5-168

5.6.6 Current elements ............................................................................................................ 5-169

5.6.7 End fault protection.......................................................................................................5-176

5.7 Control elements ............................................................................................... 5-179

5.7.1 Overview ............................................................................................................................. 5-179

5.7.2 Trip bus ................................................................................................................................5-179

5.7.3 Setting groups.................................................................................................................. 5-181

5.7.4 Digital elements...............................................................................................................5-182

5.7.5 Monitoring elements ..................................................................................................... 5-185

5.8 Inputs/outputs ................................................................................................... 5-190

5.8.1 Contact inputs.................................................................................................................. 5-190

5.8.2 Virtual inputs..................................................................................................................... 5-192

5.8.3 Contact outputs...............................................................................................................5-193

5.8.4 Virtual outputs.................................................................................................................. 5-196

5.8.5 Resetting............................................................................................................................. 5-196

5.8.6 Direct inputs and outputs........................................................................................... 5-197

5.9 Testing................................................................................................................. 5-201

5.9.1 Test mode function........................................................................................................ 5-201

5.9.2 Test mode forcing........................................................................................................... 5-202

5.9.3 Force contact inputs ..................................................................................................... 5-202

5.9.4 Force contact outputs.................................................................................................. 5-203

6 ACTUAL VALUES 6.1 Actual Values menu ...............................................................................................6-1

6.2 Front panel...............................................................................................................6-2

6.3 Status........................................................................................................................6-3

6.3.1 Contact inputs........................................................................................................................6-3

6.3.2 Virtual inputs...........................................................................................................................6-3

6.3.3 RxGOOSE boolean inputs..................................................................................................6-4

6.3.4 RxGOOSE DPS inputs ...........................................................................................................6-4

6.3.5 Contact outputs.....................................................................................................................6-4

6.3.6 Virtual outputs........................................................................................................................6-4

6.3.7 RxGOOSE status.....................................................................................................................6-5

6.3.8 RxGOOSE statistics...............................................................................................................6-5

6.3.9 Flex States................................................................................................................................6-6

6.3.10 Ethernet.....................................................................................................................................6-6

6.3.11 Real time clock synchronizing.........................................................................................6-6

6.3.12 Direct inputs ............................................................................................................................6-7

6.3.13 Direct devices status...........................................................................................................6-7

6.3.14 Remaining connection status .........................................................................................6-8

6.3.15 Parallel Redundancy Protocol (PRP) .............................................................................6-8

6.3.16 TxGOOSE status.....................................................................................................................6-9

6.4 Metering...................................................................................................................6-9

6.4.1 Metering conventions.........................................................................................................6-9

6.4.2 Bus zone.................................................................................................................................6-10

6.4.3 Currents ..................................................................................................................................6-10

6.4.4 Voltages..................................................................................................................................6-11

6.4.5 Frequency.............................................................................................................................. 6-11

6.4.6 RxGOOSE analogs.............................................................................................................. 6-11

6.5 Records...................................................................................................................6-11

6.5.1 User-programmable fault reports ............................................................................. 6-11

6.5.2 Event records.......................................................................................................................6-12

6.5.3 Oscillography....................................................................................................................... 6-13

6.6 Product information.............................................................................................6-14

6.6.1 Model information.............................................................................................................6-14

6.6.2 Firmware revisions............................................................................................................6-14

vi B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL

TABLE OF CONTENTS

7 COMMANDS AND

TARGETS

8 APPLICATION OF

SETTINGS

7.1 Commands menu................................................................................................... 7-1

7.1.1 Virtual inputs........................................................................................................................... 7-2

7.1.2 Clear records.......................................................................................................................... 7-2

7.1.3 Set date and time.................................................................................................................7-2

7.1.4 Relay maintenance.............................................................................................................. 7-3

7.1.5 Security ..................................................................................................................................... 7-4

7.2 Targets menu.......................................................................................................... 7-4

7.2.1 Target messages.................................................................................................................. 7-5

7.2.2 Relay self-tests ......................................................................................................................7-5

8.1 Overview.................................................................................................................. 8-1

8.1.1 Introduction............................................................................................................................. 8-1

8.1.2 Sample busbar and data.................................................................................................. 8-1

8.2 Zoning and dynamic bus replica ......................................................................... 8-3

8.2.1 North bus zone ...................................................................................................................... 8-3

8.2.2 South bus zone...................................................................................................................... 8-4

8.3 Biased characteristic breakpoints...................................................................... 8-5

8.3.1 Description .............................................................................................................................. 8-5

8.3.2 High breakpoint .................................................................................................................... 8-5

8.3.3 Low breakpoint...................................................................................................................... 8-6

8.4 Slopes and high set threshold ............................................................................. 8-6

8.4.1 Description .............................................................................................................................. 8-6

8.4.2 External faults on C-1......................................................................................................... 8-7

8.4.3 External faults on C-2......................................................................................................... 8-9

8.4.4 External faults on C-3......................................................................................................... 8-9

8.4.5 External faults on C-4.......................................................................................................8-10

8.4.6 External faults on C-5.......................................................................................................8-10

8.5 Bus differential settings......................................................................................8-10

8.5.1 Description ............................................................................................................................8-10

8.6 Enhancing relay performance...........................................................................8-11

8.6.1 Using setting groups.........................................................................................................8-11

9 THEORY OF

OPERATION

9.1 Introduction ............................................................................................................ 9-1

9.1.1 Bus differential protection................................................................................................9-1

9.2 Dynamic bus replica.............................................................................................. 9-3

9.2.1 Dynamic bus replica mechanism................................................................................. 9-3

9.2.2 CT ratio matching................................................................................................................. 9-3

9.3 Differential principle.............................................................................................. 9-3

9.3.1 Biased differential characteristic.................................................................................. 9-3

9.3.2 Differential and restraining currents........................................................................... 9-4

9.3.3 Enhanced security ............................................................................................................... 9-5

9.4 Directional principle.............................................................................................. 9-6

9.4.1 Current directional protection........................................................................................ 9-6

9.5 Saturation detector ............................................................................................... 9-7

9.5.1 CT saturation detection..................................................................................................... 9-7

9.6 Output logic and examples .................................................................................. 9-9

9.6.1 Output logic............................................................................................................................. 9-9

9.6.2 Internal and external fault example..........................................................................9-10

10 MAINTENANCE 10.1 Monitoring ............................................................................................................. 10-1

10.1.1 Devices with Site Targets................................................................................................10-1

10.1.2 Data with Modbus Analyzer ..........................................................................................10-1

B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL vii

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10.2 General maintenance ..........................................................................................10-3

10.2.1 In-service maintenance..................................................................................................10-3

10.2.2 Out-of-service maintenance ........................................................................................10-3

10.2.3 Unscheduled maintenance (system interruption) ..............................................10-3

10.3 Retrieve files ..........................................................................................................10-3

10.3.1 CyberSentry security event files..................................................................................10-4

10.4 Convert device settings.......................................................................................10-5

10.5 Copy settings to other device ............................................................................10-7

10.6 Compare settings .................................................................................................10-7

10.6.1 Compare against defaults .............................................................................................10-7

10.6.2 Compare two devices ...................................................................................................... 10-8

10.7 Back up and restore settings .............................................................................10-8

10.7.1 Back up settings ................................................................................................................. 10-8

10.7.2 Restore settings............................................................................................................... 10-11

10.8 Upgrade software.............................................................................................. 10-13

10.9 Upgrade firmware ............................................................................................. 10-13

10.10 Replace front panel ........................................................................................... 10-15

10.11 Replace module ................................................................................................. 10-23

10.12 Battery ................................................................................................................. 10-24

10.12.1 Replace battery for SH/SL power supply ............................................................. 10-24

10.12.2 Dispose of battery ..........................................................................................................10-26

10.13 Clear files and data after uninstall ................................................................ 10-29

10.14 Repairs................................................................................................................. 10-29

10.15 Storage ................................................................................................................ 10-30

10.16 Disposal ............................................................................................................... 10-30

AFLEXANALOG

A.1 FlexAnalog items ................................................................................................... A-1

OPERANDS

B RADIUS SERVER

B.1 RADIUS server configuration ................................................................................B-1

CONFIGURATION

C COMMAND LINE

C.1 Command line interface ....................................................................................... C-1

INTERFACE

D MISCELLANEOUS D.1 Warranty ................................................................................................................. D-1

D.2 Revision history .....................................................................................................D-1

ABBREVIATIONS

INDEX

viii B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL

B90 Low Impedance Bus Differential System

Chapter 1: Introduction

Introduction

This chapter outlines safety and technical support information.

1.1 Safety symbols and definitions

Before attempting to install or use the device, review all safety indicators in this document to help prevent injury, equipment damage, or downtime.

The following safety and equipment symbols are used in this document.

Indicates a hazardous situation which, if not avoided, will result in death or serious injury.

Indicates a hazardous situation which, if not avoided, could result in death or serious injury.

Indicates a hazardous situation which, if not avoided, could result in minor or moderate injury.

Indicates practices not related to personal injury.

1.1.1 General cautions and warnings

The following general safety precautions and warnings apply.

Ensure that all connections to the product are correct so as to avoid accidental risk of shock and/or fire, for example such as can arise from high voltage connected to low voltage terminals.

Follow the requirements of this manual, including adequate wiring size and type, terminal torque settings, voltage, current magnitudes applied, and adequate isolation/clearance in external wiring from high to low voltage circuits.

Use the device only for its intended purpose and application. Ensure that all ground paths are uncompromised for safety purposes during device operation and service. Ensure that the control power applied to the device, the alternating current (AC), and voltage input match the ratings

specified on the relay nameplate. Do not apply current or voltage in excess of the specified limits.

B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 1-1

FOR FURTHER ASSISTANCE CHAPTER 1: INTRODUCTION

Only qualified personnel are to operate the device. Such personnel must be thoroughly familiar with all safety cautions and warnings in this manual and with applicable country, regional, utility, and plant safety regulations.

Hazardous voltages can exist in the power supply and at the device connection to current transformers, voltage transformers, control, and test circuit terminals. Make sure all sources of such voltages are isolated prior to attempting work on the device.

Hazardous voltages can exist when opening the secondary circuits of live current transformers. Make sure that current transformer secondary circuits are shorted out before making or removing any connection to the current transformer (CT) input terminals of the device.

For tests with secondary test equipment, ensure that no other sources of voltages or currents are connected to such equipment and that trip and close commands to the circuit breakers or other switching apparatus are isolated, unless this is required by the test procedure and is specified by appropriate utility/plant procedure.

When the device is used to control primary equipment, such as circuit breakers, isolators, and other switching apparatus, all control circuits from the device to the primary equipment must be isolated while personnel are working on or around this primary equipment to prevent any inadvertent command from this device.

Use an external disconnect to isolate the mains voltage supply. Personal safety can be affected if the product is physically modified by the end user. Modifications to the product

outside of recommended wiring configuration, hardware, or programming boundaries is not recommended end-use practice. Product disassembly and repairs are not permitted. All service needs to be conducted by the factory.

LED transmitters are classified as IEC 60825-1 Accessible Emission Limit (AEL) Class 1M. Class 1M devices are considered safe to the unaided eye. Do not view directly with optical instruments.

This product is rated to Class A emissions levels and is to be used in Utility, Substation Industrial environments. Not to be used near electronic devices rated for Class B levels.

1.2 For further assistance

For product support, contact the information and call center as follows:

GE Grid Solutions 650 Markland Street Markham, Ontario Canada L6C 0M1 Worldwide telephone: +1 905 927 7070 Europe/Middle East/Africa telephone: +34 94 485 88 54 North America toll-free: 1 800 547 8629 Fax: +1 905 927 5098 Worldwide e-mail: multilin.tech@ge.com Europe e-mail: multilin.tech.euro@ge.com Website: http://www.gegridsolutions.com/multilin

When contacting GE by e-mail, optionally include a device information file, which is generated in the EnerVista software by clicking the Service Report button. When using the optional graphical front panel, the report instead can be generated by connecting a USB drive to the front panel.

1-2 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL

CHAPTER 1: INTRODUCTION FOR FURTHER ASSISTANCE

Figure 1-1: Generate service report in EnerVista software

B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 1-3

FOR FURTHER ASSISTANCE CHAPTER 1: INTRODUCTION

1-4 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL

B90 Low Impedance Bus Differential System

Chapter 2: Product description

Product description

This chapter outlines the product, order codes, and specifications.

2.1 Product description

The B90 Low Impedance Bus Differential System is a microprocessor-based architecture that provides protection and metering for busbars with up to 24 feeders. The B90 protection system is a centralized architecture built on one B90 IED as per requirements of a particular application. The IED is a full-featured B90 and as such can be accessed and programmed individually. Protection and supervisory functions of the B90 include:

• Multi-zone differential protection with both restrained (percent, biased) and unrestrained (unbiased, instantaneous) functions incorporated. Differential protection is fast (typical response time: ¾ of a power cycle; maximum response time: 1 power cycle) and secure. Security is achieved by using fast and reliable CT saturation detection algorithm and a second, phase comparison operating principle.

• Check-zone functionality is provided by programming one of the differential zones to enclose the entire bus

• Dynamic bus replica functionality and multi-zone protection allowing application of the B90 to multi-section reconfigurable busbars

• Isolator monitoring feature monitors up to 48 isolators from the B90 IED

• End fault protection (dead zone protection) is provided for up to 24 breakers

• CT trouble monitoring function is provided for each zone of differential protection

• Breaker fail function is provided for up to 24 breakers

• An instantaneous overcurrent function is available per each current input of the B90 system

• A time overcurrent function is available per each current input of the B90 system for backup protection

• An undervoltage function is provided per each voltage input of the B90 system for supervision purposes

Voltage and current metering is built into the relay as a standard feature. Current parameters are available as total waveform RMS magnitude, or as fundamental frequency only RMS magnitude and angle (phasor).

Diagnostic features include an event recorder capable of storing 1024 time-tagged events and oscillography capable of storing up to 64 records with programmable trigger, content, and sampling rate. The internal clock used for time-tagging can be synchronized with an IRIG-B signal, using the Simple Network Time Protocol (SNTP) over the Ethernet port, or using the Precision Time Protocol (PTP). This precise time stamping allows the sequence of events to be determined between the B90 IEDs and throughout the system. Events can also be programmed (via FlexLogic data capture that can be set to record the measured parameters before and after the event for viewing on a computer. These tools significantly reduce troubleshooting time and simplify report generation in the event of a system fault.

™

equations) to trigger oscillography

B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 2-1

PRODUCT DESCRIPTION CHAPTER 2: PRODUCT DESCRIPTION

Several options are available for communication. An RS232 port (USB port with the graphical front panel) can be used to connect to a computer for the programming of settings and the monitoring of actual values. The rear RS485 port allows independent access by operating and engineering staff. It can be connected to system computers with baud rates up to

115.2 kbps. All serial ports use the Modbus RTU protocol. The IEC 60870-5-103 protocol is supported on the RS485 interface. IEC 60870-5-103, DNP, and Modbus cannot be enabled simultaneously on this interface. Also only one of the DNP, IEC 60870-5-103, and IEC 60870-5-104 protocols can be enabled at any time on the relay. When the IEC 60870-5-103 protocol is chosen, the RS485 port has a fixed even parity and the baud rate can be either 9.6 kbps or 19.2 kbps. The 100Base-FX or 100Base-TX Ethernet interface provides fast, reliable communications in noisy environments. The Ethernet port supports IEC 61850, Modbus/TCP, TFTP, and PTP (according to IEEE Std. 1588-2008 or IEC 61588), and it allows access to the relay via any standard web browser (B90 web pages). The IEC 60870-5-104 protocol is supported on the Ethernet port. The Ethernet port also supports the Parallel Redundancy Protocol (PRP) of IEC 62439-3 (clause 4, 2012) when purchased as an option.

Secure Routable GOOSE (R-GOOSE) is supported with software options. Settings and actual values can be accessed from the front panel or EnerVista software. The B90 uses flash memory technology that allows field upgrading as new features are added. Firmware and software are

upgradable. The following single-line diagram illustrates the relay functionality using American National Standards Institute (ANSI)

device numbers.

The available zones of differential protection and their size (maximum number of inputs) are optional and controlled by the software option portion of the order code. The breaker failure function is also optional. See the ordering section for information on the maximum number of zones and inputs for a given model. In addition, different applications can require differing numbers of B90s with different hardware configurations.

Table 2-1: ANSI device numbers and functions supported

Device number

27 Undervoltage 51 Time overcurrent 50 Instantaneous overcurrent 50BF Breaker failure 50/74 CT trouble 50EF End fault protection 50/87 Unrestrained bus differential

Function Device

number

Function

2-2 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL

CHAPTER 2: PRODUCT DESCRIPTION PRODUCT DESCRIPTION

Figure 2-1: Single-line diagram

Table 2-2: Other device functions

Function Function

Contact inputs (up to 120 per IED) Modbus communications Contact outputs (up to 72 per IED) Modbus user map Control pushbuttons Non-volatile latches CyberSentry™ security Oscillography Digital elements (48 per IED) Setting groups (6) Direct inputs and outputs (256) Time synchronization over IRIG-B or IEEE 1588 DNP 3.0 or IEC 60870-5-104 communications Time synchronization over SNTP Dynamic bus replica User definable displays End fault protection User-programmable fault reports Event recorder User-programmable LEDs

B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 2-3

SECURITY CHAPTER 2: PRODUCT DESCRIPTION

Function Function

IEC 60870-5-103 communications User-programmable pushbuttons FlexLogic equations User-programmable self-tests IEC 61850 communications Virtual inputs (64 per IED) IEC 62351-9 data and communications security Virtual outputs (96 per IED) Metering: current, voltage, frequency

2.2 Security

The following security features are available:

• Password security — Basic security present by default

• EnerVista security — Role-based access to various EnerVista software screens and configuration elements. The feature is present by default in the EnerVista software.

• CyberSentry security — Advanced security available using a software option. When purchased, the option is automatically enabled, and the default Password security and EnerVista security are disabled.

2.2.0.1 EnerVista security

The EnerVista security management system is a role-based access control (RBAC) system that allows an administrator to manage the privileges of multiple users. This allows for access control of UR devices by multiple personnel within a substation and conforms to the principles of RBAC as defined in ANSI INCITS 359-2004. The EnerVista security management system is disabled by default to allow the administrator direct access to the EnerVista software after installation. It is recommended that security be enabled before placing the device in service.

Basic password or enhanced CyberSentry security applies, depending on purchase.

2.2.0.2 Password security

Password security is a basic security feature present by default. Two levels of password security are provided: command and setting. Use of a password for each level controls whether

users can enter commands and/or change settings. The B90 supports password entry from a local or remote connection. Local access is defined as any access to settings or

commands via the front panel interface. This includes both keypad entry and the through the front panel RS232 port. Remote access is defined as any access to settings or commands via any rear communications port. This includes both Ethernet and RS485 connections. Any changes to the local or remote passwords enables this functionality.

When entering a settings or command password via EnerVista or any serial interface, the user must enter the corresponding connection password. If the connection is to the back of the B90, the remote password must be used. If the connection is to the RS232 port of the front panel, the local password applies.

Password access events are logged in the Event Recorder.

2.2.0.3 CyberSentry security

CyberSentry embedded security is available using software options that provide advanced security services. When an option is purchased, the basic password security is disabled automatically.

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, provides accounting of all user activities, and uses secure standardsbased strong cryptography for authentication and credential protection

• A Role-Based Access Control (RBAC) system that provides a permission model that allows access to UR device operations and configurations based on specific roles and individual user accounts configured on the AAA server (that is, Administrator, Supervisor, Engineer, Operator, Observer roles)

2-4 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL

CHAPTER 2: PRODUCT DESCRIPTION SECURITY

• Security event reporting through the Syslog protocol for supporting Security Information Event Management (SIEM)

systems for centralized cybersecurity monitoring

• Strong encryption of all access and configuration network messages between the EnerVista software and UR devices

using the Secure Shell (SSH) protocol, the Advanced Encryption Standard (AES), and 128-bit keys in Galois Counter Mode (GCM) as specified in the U.S. National Security Agency Suite B extension for SSH and approved by the National Institute of Standards and Technology (NIST) FIPS-140-2 standards for cryptographic systems

CyberSentry user roles

CyberSentry user roles (Administrator, Engineer, Operator, Supervisor, Observer) limit the levels of access to various UR device functions. This means that the EnerVista software allows for access to functionality based on the user’s logged in role.

Example: Administrative functions can be segmented away from common operator functions, or engineering type access, all of which are defined by separate roles (see figure) so that access of UR devices by multiple personnel within a substation is allowed.

One role of one type is allowed to be logged in at a time. For example, one Operator can be logged in but not a second Operator at the same time. This prevents subsets of settings from being changed at the same time.

Figure 2-2: CyberSentry user roles

The table lists user roles and their corresponding capabilities.

Table 2-3: Permissions by user role for CyberSentry

Roles Administrator Engineer Operator Supervisor Observer

Complete access Complete access

Device Definition R R R R R Settings |---------- Product Setup

|--------------- Security

(CyberSentry)

|--------------- Supervisory See table notes R R See table

|--------------- Display Properties RW RW R R R |--------------- Clear Relay Records

(settings) |--------------- Communications RW RW R R R |--------------- Modbus User Map RW RW R R R |--------------- Real Time Clock RW RW R R R |--------------- Oscillography RW RW R R R

B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 2-5

RW R R R R

RW RW R R R

except for CyberSentry Security

Command menu

Authorizes writing

notes

Default role

SECURITY CHAPTER 2: PRODUCT DESCRIPTION

Roles Administrator Engineer Operator Supervisor Observer

|--------------- Data Logger RW RW R R R |--------------- Demand RW RW R R R |--------------- User-Programmable

LEDs

|--------------- User-Programmable

Self Tests |--------------- Control Pushbuttons RW RW R R R |--------------- User-Programmable

Pushbuttons |--------------- Flex state

Parameters |--------------- User-Definable

Displays |--------------- Direct I/O RW RW R R R |--------------- Teleprotection RW RW R R R |--------------- Installation RW RW R R R

|--------------- Contact Inputs RW RW R R R |--------------- Contact Input

|---------- Transducer I/O RW RW R R R |---------- Testing RW RW R R R |---------- Front Panel Labels Designer NA NA NA NA NA |---------- Protection Summary NA NA NA NA NA Commands RW RW RW R R |---------- Virtual Inputs RW RW RW R R |---------- Clear Records RW RW RW R R |---------- Set Date and Time RW RW RW R R User Displays R R R R R Targets R R R R R Actual Values R R R R R |---------- Front panel labels designer R R R R R |---------- Status R R R R R |---------- Metering R R R R R |---------- Transducer I/O R R R R R

RW RW R R R

2-6 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL

CHAPTER 2: PRODUCT DESCRIPTION ORDER CODES

Roles Administrator Engineer Operator Supervisor Observer

|---------- Records R R R R R |---------- Product Info R R R R R Maintenance RW RW R R R |---------- Modbus Analyzer NA NA NA NA NA |---------- Change front panel RW RW RW R R |---------- Update firmware Yes No No No No |---------- Retrieve file Yes No No No No

Table Notes: RW = read and write access R = read access Supervisor = RW (default), Administrator = R (default), Administrator = RW (only if Supervisor role is disabled) NA = the permission is not enforced by CyberSentry security

CyberSentry user authentication

The following types of authentication are supported by CyberSentry to access the UR device:

• Device Authentication (local UR device authenticates)

• Server Authentication (RADIUS server authenticates) The EnerVista software allows access to functionality that is determined by the user role, which comes either from the local

UR device or the RADIUS server. The EnerVista software has a device authentication option on the login screen for accessing the UR device. When the

"Device" button is selected, the UR uses its local authentication database and not the RADIUS server to authenticate the user. In this case, it uses its built-in roles (Administrator, Engineer, Supervisor, Observer, Operator, or Administrator and Supervisor when Device Authentication is disabled) as login names and the associated passwords are stored on the UR device. As such, when using the local accounts, access is not user-attributable.

In cases where user-attributable access is required especially to facilitate auditable processes for compliance reasons, use RADIUS authentication only.

When the "Server" Authentication Type option is selected, the UR uses the RADIUS server and not its local authentication database to authenticate the user.

No password or security information is displayed in plain text by the EnerVista software or UR device, nor is such information ever transmitted without cryptographic protection.

CyberSentry server authentication

The UR has been designed to direct automatically the authentication requests based on user names. In this respect, local account names on the UR are considered as reserved and not used on a RADIUS server.

The UR detects automatically whether an authentication request is to be handled remotely or locally. As there are five local accounts possible on the UR, if the user ID credential does not match one of the five local accounts, the UR forwards automatically 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 UR accounts to gain access to the UR system.

2.3 Order codes

A B90 protection system consists of several UR-series B90 IEDs as per user needs and system configuration. At least three IEDs are required to provide differential and other protection functions for phases A, B, and C of the busbar. The fourth IED is required for breaker failure functionality and isolator status monitoring as well as extra input and output capability. A fifth IED is sometimes required for additional input and output capability.

B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 2-7

ORDER CODES CHAPTER 2: PRODUCT DESCRIPTION

Before ordering the B90 system, an analysis of the required protection and monitoring functions is required. Also, detailed analyses of required AC inputs and input/output contacts must be performed to select appropriate hardware configurations for each of the B90 IEDs.

The B90 is provided with an option of protecting 8, 16, or 24-feeder busbars. When ordered as an eight-feeder protection system, the B90 is configurable for up to eight-input bus differential, regardless of the number of physical current inputs available in the B90 IEDs.

The relay is available as a 19-inch rack horizontal mount unit and consists of the following modules: power supply, CPU, CTs and VTs, contact inputs and outputs, and inter-relay communications. Each of these modules can be supplied in a number of configurations specified at the time of ordering. The information required to completely specify the relay is provided in the following tables (see chapter 3 for full details of relay modules).

Order codes are subject to change without notice. See the web page for the product for the latest options.

The R-GOOSE protocol described in IEC 61850-8-1 is available through the IEC 61850 software option. R-GOOSE security requires the CyberSentry software option.

Table 2-4: B90 order codes

B90 - * ** - H * * - F ** - H ** - L ** - N ** - S ** - U ** - W/X ** Full Size Horizontal Mount

U | | | | | | | | | | | RS485 with 1 100Base-TX Ethernet, SFP RJ-45 +2 100Base-FX Ethernet ,

V | | | | | | | | | | | RS485 with 3 100Base-TX Ethernet, SFP with RJ-45

01 | | | | | | | | | | Six-zone 16-feeder bus protection 02 | | | | | | | | | | Six-zone 24-feeder bus protection 03 | | | | | | | | | | Single-zone 24-feeder bus protection 04 | | | | | | | | | | Six-zone 8-feeder bus protection + IEC 61850 05 | | | | | | | | | | Six-zone 16-feeder bus protection + IEC 61850 06 | | | | | | | | | | Six-zone 24-feeder bus protection + IEC 61850 07 | | | | | | | | | | Single-zone 24-feeder bus protection + IEC 61850 10 | | | | | | | | | | Six-zone 8-feeder bus protection + breaker failure 11 | | | | | | | | | | Six-zone 16-feeder bus protection + breaker failure 12 | | | | | | | | | | Six-zone 24-feeder bus protection + breaker failure 13 | | | | | | | | | | Single-zone 24-feeder bus protection + breaker failure 14 | | | | | | | | | | Six-zone 8-feeder bus protection + IEC 61850 + breaker failure 15 | | | | | | | | | | Six-zone 16-feeder bus protection + IEC 61850 + breaker failure 16 | | | | | | | | | | Six-zone 24-feeder bus protection + IEC 61850 + breaker failure 17 | | | | | | | | | | Single-zone 24-feeder bus protection + IEC 61850 + breaker failure A0 | | | | | | | | | | Six-zone 8-feeder bus protection + CyberSentry Lvl 1 A1 | | | | | | | | | | Six-zone 16-feeder bus protection + CyberSentry Lvl 1 A2 | | | | | | | | | | Six-zone 24-feeder bus protection + CyberSentry Lvl 1 A3 | | | | | | | | | | Single-zone 24-feeder bus protection + CyberSentry Lvl 1 A4 | | | | | | | | | | Six-zone 8-feeder bus protection + IEC 61850 + CyberSentry Lvl 1 A5 | | | | | | | | | | Six-zone 16-feeder bus protection + IEC 61850 + CyberSentry Lvl 1 A6 | | | | | | | | | | Six-zone 24-feeder bus protection + IEC 61850 + CyberSentry Lvl 1 A7 | | | | | | | | | | Single-zone 24-feeder bus protection + IEC 61850 + CyberSentry Lvl 1 A8 | | | | | | | | | | Six-zone 8-feeder bus protection + breaker failure + CyberSentry Lvl 1 A9 | | | | | | | | | | Six-zone 16-feeder bus protection + breaker failure + CyberSentry Lvl 1 AA | | | | | | | | | | Six-zone 24-feeder bus protection + breaker failure + CyberSentry Lvl 1 AB | | | | | | | | | | Single-zone 24-feeder bus protection + breaker failure + CyberSentry Lvl 1 AC | | | | | | | | | | Six-zone 8-feeder bus protection + IEC 61850 + breaker failure + CyberSentry Lvl

AD | | | | | | | | | | Six-zone 16-feeder bus protection + IEC 61850 + breaker failure + CyberSentry Lvl

AE | | | | | | | | | | Six-zone 24-feeder bus protection + IEC 61850 + breaker failure + CyberSentry Lvl

AF | | | | | | | | | | Single-zone 24-feeder bus protection + IEC 61850 + breaker failure + CyberSentry

B0 | | | | | | | | | | Six-zone 8-feeder bus protection + IEEE 1588 B1 | | | | | | | | | | Six-zone 16-feeder bus protection + IEEE 1588 B2 | | | | | | | | | | Six-zone 24-feeder bus protection + IEEE 1588 B3 | | | | | | | | | | Single-zone 24-feeder bus protection + IEEE 1588 B4 | | | | | | | | | | Six-zone 8-feeder bus protection + IEC 61850 + IEEE 1588 B5 | | | | | | | | | | Six-zone 16-feeder bus protection + IEC 61850 + IEEE 1588 B6 | | | | | | | | | | Six-zone 24-feeder bus protection + IEC 61850 + IEEE 1588 B7 | | | | | | | | | | Single-zone 24-feeder bus protection + IEC 61850 + IEEE 1588 B8 | | | | | | | | | | Six-zone 8-feeder bus protection + breaker failure + IEEE 1588 B9 | | | | | | | | | | Six-zone 16-feeder bus protection + breaker failure + IEEE 1588 BA | | | | | | | | | | Six-zone 24-feeder bus protection + breaker failure + IEEE 1588 BB | | | | | | | | | | Single-zone 24-feeder bus protection + breaker failure + IEEE 1588 BC | | | | | | | | | | Six-zone 8-feeder bus protection + IEC 61850 + breaker failure + IEEE 1588 BD | | | | | | | | | | Six-zone 16-feeder bus protection + IEC 61850 + breaker failure + IEEE 1588 BE | | | | | | | | | | Six-zone 24-feeder bus protection + IEC 61850 + breaker failure + IEEE 1588 BF | | | | | | | | | | Single-zone 24-feeder bus protection + IEC 61850 + breaker failure + IEEE 1588 C0 | | | | | | | | | | Parallel Redundancy Protocol (PRP) + six-zone 8-feeder bus protection C1 | | | | | | | | | | PRP + six-zone 16-feeder bus protection C2 | | | | | | | | | | PRP + six-zone 24-feeder bus protection C3 | | | | | | | | | | PRP + single-zone 24-feeder bus protection C4 | | | | | | | | | | PRP + six-zone 8-feeder bus protection + IEC 61850 C5 | | | | | | | | | | PRP + six-zone 16-feeder bus protection + IEC 61850 C6 | | | | | | | | | | PRP + six-zone 24-feeder bus protection + IEC 61850 C7 | | | | | | | | | | PRP + single-zone 24-feeder bus protection + IEC 61850 C8 | | | | | | | | | | PRP + six-zone 8-feeder bus protection + breaker failure C9 | | | | | | | | | | PRP + six-zone 16-feeder bus protection + breaker failure

multimode, SFP with LC

Lvl 1

2-8 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL

CHAPTER 2: PRODUCT DESCRIPTION ORDER CODES

B90 - * ** - H * * - F ** - H ** - L ** - N ** - S ** - U ** - W/X ** Full Size Horizontal Mount

CA | | | | | | | | | | PRP + six-zone 24-feeder bus protection + breaker failure CB | | | | | | | | | | PRP + single-zone 24-feeder bus protection + breaker failure CC | | | | | | | | | | PRP + six-zone 8-feeder bus protection + breaker failure + IEC 61850 CD | | | | | | | | | | PRP + six-zone 16-feeder bus protection + breaker failure + IEC 61850 CE | | | | | | | | | | PRP + six-zone 24-feeder bus protection + breaker failure + IEC 61850 CF | | | | | | | | | | PRP + single-zone 24-feeder bus protection + breaker failure + IEC 61850 D0 | | | | | | | | | | Six-zone 8-feeder bus protection + IEEE 1588 + CyberSentry Lvl 1 D1 | | | | | | | | | | Six-zone 16-feeder bus protection + IEEE 1588 + CyberSentry Lvl 1 D2 | | | | | | | | | | Six-zone 24-feeder bus protection + IEEE 1588 + CyberSentry Lvl 1 D3 | | | | | | | | | | Single-zone 24-feeder bus protection + IEEE 1588 + CyberSentry Lvl 1 D4 | | | | | | | | | | Six-zone 8-feeder bus protection + IEC 61850 + IEEE 1588 + CyberSentry Lvl 1 D5 | | | | | | | | | | Six-zone 16-feeder bus protection + IEC 61850 + IEEE 1588 + CyberSentry Lvl 1 D6 | | | | | | | | | | Six-zone 24-feeder bus protection + IEC 61850 + IEEE 1588 + CyberSentry Lvl 1 D7 | | | | | | | | | | Single-zone 24-feeder bus protection + IEC 61850 + IEEE 1588 + CyberSentry Lvl

D8 | | | | | | | | | | Six-zone 8-feeder bus protection + breaker failure + IEEE 1588 + CyberSentry Lvl

D9 | | | | | | | | | | Six-zone 16-feeder bus protection + breaker failure + IEEE 1588 + CyberSentry Lvl

DA | | | | | | | | | | Six-zone 24-feeder bus protection + breaker failure + IEEE 1588 + CyberSentry Lvl

DB | | | | | | | | | | Single-zone 24-feeder bus protection + breaker failure + IEEE 1588 + CyberSentry

DC | | | | | | | | | | Six-zone 8-feeder bus protection + IEC 61850 + breaker failure + IEEE 1588 +

DD | | | | | | | | | | Six-zone 16-feeder bus protection + IEC 61850 + breaker failure + IEEE 1588 +

DE | | | | | | | | | | Six-zone 24-feeder bus protection + IEC 61850 + breaker failure + IEEE 1588 +

DF | | | | | | | | | | Single-zone 24-feeder bus protection + IEC 61850 + breaker failure + IEEE 1588 +

E0 | | | | | | | | | | IEEE 1588 + PRP + six-zone 8-feeder bus protection E1 | | | | | | | | | | IEEE 1588 + PRP + six-zone 16-feeder bus protection E2 | | | | | | | | | | IEEE 1588 + PRP + six-zone 24-feeder bus protection E3 | | | | | | | | | | IEEE 1588 + PRP + single-zone 24-feeder bus protection E4 | | | | | | | | | | IEEE 1588 + PRP + six-zone 8-feeder bus protection + IEC 61850 E5 | | | | | | | | | | IEEE 1588 + PRP + six-zone 16-feeder bus protection + IEC 61850 E6 | | | | | | | | | | IEEE 1588 + PRP + six-zone 24-feeder bus protection + IEC 61850 E7 | | | | | | | | | | IEEE 1588 + PRP + single-zone 24-feeder bus protection + IEC 61850 E8 | | | | | | | | | | IEEE 1588 + PRP + six-zone 8-feeder bus protection + breaker failure E9 | | | | | | | | | | IEEE 1588 + PRP + six-zone 16-feeder bus protection + breaker failure EA | | | | | | | | | | IEEE 1588 + PRP + six-zone 24-feeder bus protection + breaker failure EB | | | | | | | | | | IEEE 1588 + PRP + single-zone 24-feeder bus protection + breaker failure EC | | | | | | | | | | IEEE 1588 + PRP + six-zone 8-feeder bus protection + breaker failure + IEC 61850 ED | | | | | | | | | | IEEE 1588 + PRP + six-zone 16-feeder bus protection + breaker failure + IEC

EE | | | | | | | | | | IEEE 1588 + PRP + six-zone 24-feeder bus protection + breaker failure + IEC

EF | | | | | | | | | | IEEE 1588 + PRP + single-zone 24-feeder bus protection + breaker failure + IEC

F0 | | | | | | | | | | PRP + CyberSentry Lvl 1 + six-zone 8-feeder bus protection F1 | | | | | | | | | | PRP + CyberSentry Lvl 1 + six-zone 16-feeder bus protection F2 | | | | | | | | | | PRP + CyberSentry Lvl 1 + six-zone 24-feeder bus protection F3 | | | | | | | | | | PRP + CyberSentry Lvl 1 + single-zone 24-feeder bus protection F4 | | | | | | | | | | PRP + CyberSentry Lvl 1 + six-zone 8-feeder bus protection + IEC 61850 F5 | | | | | | | | | | PRP + CyberSentry Lvl 1 + six-zone 16-feeder bus protection + IEC 61850 F6 | | | | | | | | | | PRP + CyberSentry Lvl 1 + six-zone 24-feeder bus protection + IEC 61850 F7 | | | | | | | | | | PRP + CyberSentry Lvl 1 + single-zone 24-feeder bus protection + IEC 61850 F8 | | | | | | | | | | PRP + CyberSentry Lvl 1 + six-zone 8-feeder bus protection + breaker failure F9 | | | | | | | | | | PRP + CyberSentry Lvl 1 + six-zone 16-feeder bus protection + breaker failure FA | | | | | | | | | | PRP + CyberSentry Lvl 1 + six-zone 24-feeder bus protection + breaker failure FB | | | | | | | | | | PRP + CyberSentry Lvl 1 + single-zone 24-feeder bus protection + breaker failure FC | | | | | | | | | | PRP + CyberSentry Lvl 1 + six-zone 8-feeder bus protection + breaker failure + IEC

FD | | | | | | | | | | PRP + CyberSentry Lvl 1 + six-zone 16-feeder bus protection + breaker failure +

FE | | | | | | | | | | PRP + CyberSentry Lvl 1 + six-zone 24-feeder bus protection + breaker failure +

FF | | | | | | | | | | PRP + CyberSentry Lvl 1 + single-zone 24-feeder bus protection + breaker failure

G0 | | | | | | | | | | IEEE 1588 + PRP + CyberSentry Lvl 1 + six-zone 8-feeder bus protection G1 | | | | | | | | | | IEEE 1588 + PRP + CyberSentry Lvl 1 + six-zone 16-feeder bus protection G2 | | | | | | | | | | IEEE 1588 + PRP + CyberSentry Lvl 1 + six-zone 24-feeder bus protection G3 | | | | | | | | | | IEEE 1588 + PRP + CyberSentry Lvl 1 + single-zone 24-feeder bus protection G4 | | | | | | | | | | IEEE 1588 + PRP + CyberSentry Lvl 1 + six-zone 8-feeder bus protection + IEC

G5 | | | | | | | | | | IEEE 1588 + PRP + CyberSentry Lvl 1 + six-zone 16-feeder bus protection + IEC

G6 | | | | | | | | | | IEEE 1588 + PRP + CyberSentry Lvl 1 + six-zone 24-feeder bus protection + IEC

G7 | | | | | | | | | | IEEE 1588 + PRP + CyberSentry Lvl 1 + single-zone 24-feeder bus protection + IEC

G8 | | | | | | | | | | IEEE 1588 + PRP + CyberSentry Lvl 1 + six-zone 8-feeder bus protection + breaker

G9 | | | | | | | | | | IEEE 1588 + PRP + CyberSentry Lvl 1 + six-zone 16-feeder bus protection +

GA | | | | | | | | | | IEEE 1588 + PRP + CyberSentry Lvl 1 + six-zone 24-feeder bus protection +

GB | | | | | | | | | | IEEE 1588 + PRP + CyberSentry Lvl 1 + single-zone 24-feeder bus protection +

GC | | | | | | | | | | IEEE 1588 + PRP + CyberSentry Lvl 1 + six-zone 8-feeder bus protection + breaker

GD | | | | | | | | | | IEEE 1588 + PRP + CyberSentry Lvl 1 + six-zone 16-feeder bus protection +

GE | | | | | | | | | | IEEE 1588 + PRP + CyberSentry Lvl 1 + six-zone 24-feeder bus protection +

GF | | | | | | | | | | IEEE 1588 + PRP + CyberSentry Lvl 1 + single-zone 24-feeder bus protection +

J0 | | | | | | | | | | IEC 60870-5-103 + six-zone 8-feeder bus protection

Lvl 1

CyberSentry Lvl 1

61850

IEC 61850

+ IEC 61850

61850

failure

breaker failure

failure + IEC 61850

breaker failure + IEC 61850

B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 2-9

ORDER CODES CHAPTER 2: PRODUCT DESCRIPTION

B90 - * ** - H * * - F ** - H ** - L ** - N ** - S ** - U ** - W/X ** Full Size Horizontal Mount

J1 | | | | | | | | | | IEC 60870-5-103 + six-zone 16-feeder bus protection J2 | | | | | | | | | | IEC 60870-5-103 + six-zone 24-feeder bus protection J3 | | | | | | | | | | IEC 60870-5-103 + single-zone 24-feeder bus protection J4 | | | | | | | | | | IEC 60870-5-103 + six-zone 8-feeder bus protection + IEC 61850 J5 | | | | | | | | | | IEC 60870-5-103 + six-zone 16-feeder bus protection + IEC 61850 J6 | | | | | | | | | | IEC 60870-5-103 + six-zone 24-feeder bus protection + IEC 61850 J7 | | | | | | | | | | IEC 60870-5-103 + single-zone 24-feeder bus protection + IEC 61850 J8 | | | | | | | | | | IEC 60870-5-103 + six-zone 8-feeder bus protection + breaker failure J9 | | | | | | | | | | IEC 60870-5-103 + six-zone 16-feeder bus protection + breaker failure JA | | | | | | | | | | IEC 60870-5-103 + six-zone 24-feeder bus protection + breaker failure JB | | | | | | | | | | IEC 60870-5-103 + single-zone 24-feeder bus protection + breaker failure JC | | | | | | | | | | IEC 60870-5-103 + six-zone 8-feeder bus protection + breaker failure + IEC 61850 JD | | | | | | | | | | IEC 60870-5-103 + six-zone 16-feeder bus protection + breaker failure + IEC

JE | | | | | | | | | | IEC 60870-5-103 + six-zone 24-feeder bus protection + breaker failure + IEC

JF | | | | | | | | | | IEC 60870-5-103 + single-zone 24-feeder bus protection + breaker failure + IEC

K0 | | | | | | | | | | IEC 60870-5-103 + IEEE 1588 + PRP + six-zone 8-feeder bus protection K1 | | | | | | | | | | IEC 60870-5-103 + IEEE 1588 + PRP + six-zone 16-feeder bus protection K2 | | | | | | | | | | IEC 60870-5-103 + IEEE 1588 + PRP + six-zone 24-feeder bus protection K3 | | | | | | | | | | IEC 60870-5-103 + IEEE 1588 + PRP + single-zone 24-feeder bus protection K4 | | | | | | | | | | IEC 60870-5-103 + IEEE 1588 + PRP + six-zone 8-feeder bus protection + IEC

K5 | | | | | | | | | | IEC 60870-5-103 + IEEE 1588 + PRP + six-zone 16-feeder bus protection + IEC

K6 | | | | | | | | | | IEC 60870-5-103 + IEEE 1588 + PRP + six-zone 24-feeder bus protection + IEC

K7 | | | | | | | | | | IEC 60870-5-103 + IEEE 1588 + PRP + single-zone 24-feeder bus protection + IEC

K8 | | | | | | | | | | IEC 60870-5-103 + IEEE 1588 + PRP + six-zone 8-feeder bus protection + breaker

K9 | | | | | | | | | | IEC 60870-5-103 + IEEE 1588 + PRP + six-zone 16-feeder bus protection +

KA | | | | | | | | | | IEC 60870-5-103 + IEEE 1588 + PRP + six-zone 24-feeder bus protection +

KB | | | | | | | | | | IEC 60870-5-103 + IEEE 1588 + PRP + single-zone 24-feeder bus protection +

KC | | | | | | | | | | IEC 60870-5-103 + IEEE 1588 + PRP + six-zone 8-feeder bus protection + breaker

KD | | | | | | | | | | IEC 60870-5-103 + IEEE 1588 + PRP + six-zone 16-feeder bus protection +

KE | | | | | | | | | | IEC 60870-5-103 + IEEE 1588 + PRP + six-zone 24-feeder bus protection +

KF | | | | | | | | | | IEC 60870-5-103 + IEEE 1588 + PRP + single-zone 24-feeder bus protection +

L0 | | | | | | | | | | IEC 60870-5-103 + IEEE 1588 + PRP + CyberSentry Lvl 1 + six-zone 8-feeder bus

L1 | | | | | | | | | | IEC 60870-5-103 + IEEE 1588 + PRP + CyberSentry Lvl 1 + six-zone 16-feeder bus

L2 | | | | | | | | | | IEC 60870-5-103 + IEEE 1588 + PRP + CyberSentry Lvl 1 + six-zone 24-feeder bus

L3 | | | | | | | | | | IEC 60870-5-103 + IEEE 1588 + PRP + CyberSentry Lvl 1 + single-zone 24-feeder

L4 | | | | | | | | | | IEC 60870-5-103 + IEEE 1588 + PRP + CyberSentry Lvl 1 + six-zone 8-feeder bus

L5 | | | | | | | | | | IEC 60870-5-103 + IEEE 1588 + PRP + CyberSentry Lvl 1 + six-zone 16-feeder bus

L6 | | | | | | | | | | IEC 60870-5-103 + IEEE 1588 + PRP + CyberSentry Lvl 1 + six-zone 24-feeder bus

L7 | | | | | | | | | | IEC 60870-5-103 + IEEE 1588 + PRP + CyberSentry Lvl 1 + single-zone 24-feeder

L8 | | | | | | | | | | IEC 60870-5-103 + IEEE 1588 + PRP + CyberSentry Lvl 1 + six-zone 8-feeder bus

L9 | | | | | | | | | | IEC 60870-5-103 + IEEE 1588 + PRP + CyberSentry Lvl 1 + six-zone 16-feeder bus

LA | | | | | | | | | | IEC 60870-5-103 + IEEE 1588 + PRP + CyberSentry Lvl 1 + six-zone 24-feeder bus

LB | | | | | | | | | | IEC 60870-5-103 + IEEE 1588 + PRP + CyberSentry Lvl 1 + single-zone 24-feeder

LC | | | | | | | | | | IEC 60870-5-103 + IEEE 1588 + PRP + CyberSentry Lvl 1 + six-zone 8-feeder bus

LD | | | | | | | | | | IEC 60870-5-103 + IEEE 1588 + PRP + CyberSentry Lvl 1 + six-zone 16-feeder bus

LE | | | | | | | | | | IEC 60870-5-103 + IEEE 1588 + PRP + CyberSentry Lvl 1 + six-zone 24-feeder bus

LF | | | | | | | | | | IEC 60870-5-103 + IEEE 1588 + PRP + CyberSentry Lvl 1 + single-zone 24-feeder

61850

failure

breaker failure

failure + IEC 61850

breaker failure + IEC 61850

protection

bus protection

protection + IEC 61850

bus protection + IEC 61850

protection + breaker failure

bus protection + breaker failure

protection + breaker failure + IEC 61850

bus protection + breaker failure + IEC 61850

2-10 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL

CHAPTER 2: PRODUCT DESCRIPTION ORDER CODES

POWER SUPPLY (redundant power supply must be same type as ma in power supply) ENHANCED DIAGNOSTICS CT/VT DSP (requires all DSP to be enhanced diagnostic) CONTACT INPUTS/OUTPUTS XX XX XX XX XX XX | No Module

INTER-RELAY COMMUNICATIONS (select a maximum of 1 per unit)

B90 - * ** - H * * - F ** - H ** - L ** - N ** - S ** - U ** - W/X ** Full Size Horizontal Mount

A | | | | | | | | | Horizontal (19” rack) with harsh-environmental coating

D | | | | | | | | French display R | | | | | | | | Russian display A | | | | | | | | Chinese display P | | | | | | | | English display with 4 small and 12 large programmable pushbuttons G | | | | | | | | French display with 4 small and 12 large programmable pushbuttons S | | | | | | | | Russian display with 4 small and 12 large programmable pushbuttons B | | | | | | | | Chinese display with 4 small and 12 large programmable pushbuttons K | | | | | | | | Enhanced front panel with English display M | | | | | | | | Enhanced front panel with French display Q | | | | | | | | Enhanced front panel with Russian display U | | | | | | | | Enhanced front panel with Chinese display L | | | | | | | | Enhanced front panel with English display and user-programmable pushbuttons N | | | | | | | | Enhanced front panel with French display and user-programmable pushbuttons T | | | | | | | | Enhanced fron t panel with Russian display and user-programmable pushbuttons V | | | | | | | | Enhanced front panel with Chinese display and user-programmable pushbuttons W | | | | | | | | Enhanced front panel with Turkish display Y | | | | | | | | Enhanced front panel with Turkish display and user-programmable pushbuttons I | | | | | | | | Enhanced front panel with German d isplay J | | | | | | | | Enhanced front panel with German display and user-programmable

E | | | | | | | | 7" Graphical front panel display in multiple languages with USB front port and

XX | XX | XX | | None 8L | 8L | 8L | | Standard 4CT/4VT with enhanced diagnostics 8N | 8N | 8N | | Standard 8CT with enhanced diagnostics 8S | 8S | 8S | | Standard 7CT/1VT with enhanced diagnostics

4A 4A 4A 4A 4A 4A | 4 Solid state (no monitoring) MOSFET outputs 4B 4B 4B 4B 4B 4B | 4 Solid state (voltage with optional current) MOSFET outputs 4C 4C 4C 4C 4C 4C | 4 Solid state (current with optional voltage) MOSFET outputs 4D 4D 4D 4D 4D 4D | 16 Contact inputs with auto-burnish 4L 4L 4L 4L 4L 4L | 14 Form-A (no monitoring) latchable outputs 6A 6A 6A 6A 6A 6A | 2 Form-A (voltage with optional current) and 2 Form-C outputs, 8 contact inputs 6B 6B 6B 6B 6B 6B | 2 Form-A (voltage with optional current) and 4 Form-C outputs, 4 contact inputs 6C 6C 6C 6C 6C 6C | 8 Form-C outputs 6D 6D 6D 6D 6D 6D | 16 Contact inputs 6E 6E 6E 6E 6E 6E | 4 Form-C outputs, 8 contact inputs 6F 6F 6F 6F 6F 6F | 8 Fast Form-C outputs 6G 6G 6G 6G 6G 6G | 4 Form-A (voltage with optional current) outputs, 8 contact inputs 6H 6H 6H 6H 6H 6H | 6 Form-A (voltage with optional current) outputs, 4 contact inputs 6K 6K 6K 6K 6K 6K | 4 Form-C and 4 Fast Form-C outputs 6L 6L 6L 6L 6L 6L | 2 Form-A (current with optional voltage) and 2 Form-C outputs, 8 contact inputs 6M 6M 6M 6M 6M 6M | 2 Form-A (current with optional voltage) and 4 Form-C outputs, 4 contact inputs 6N 6N 6N 6N 6N 6N | 4 Form-A (current with optional voltage) outputs, 8 contact inputs 6P 6P 6P 6P 6P 6P | 6 Form-A (current with optional voltage) outputs, 4 contact inputs 6R 6R 6R 6R 6R 6R | 2 Form-A (no monitoring) and 2 Form-C outputs, 8 contact inputs 6S 6S 6S 6S 6S 6S | 2 Form-A (no monitoring) and 4 Form-C outputs, 4 contact inputs 6T 6T 6T 6T 6T 6T | 4 Form-A (no monitoring) outputs, 8 contact inputs 6U 6U 6U 6U 6U 6U | 6 Form-A (no monitoring) outputs, 4 contact inputs 67 67 67 67 67 67 | 8 Form-A (no monitoring) outputs

pushbuttons

user-programmable pushbuttons

XX No Module 2A C37.94SM, 1300 nm single-mode, ELED, 1 channel single-mode 2B C37.94SM, 1300 nm single-mode, ELED, 2 channel single-mode 2E Bi-phase, single channel 2F Bi-phase, dual channel 2G IEEE C37.94, 820 nm, 128 kbps, multimode, LED, 1 Channel 2H IEEE C37.94, 820 nm, 128 kbps, multimode, LED, 2 Channels 2I Channel 1 - IEEE C37.94, MM, 64/128 kbps; Channel 2 - 1300 nm, single-mode,

Laser

2J Channel 1 - IEEE C37.94, MM, 64/128 kbps; Channel 2 - 1550 nm, single-mode,

Laser 72 1550 nm, single-mode, Laser, 1 Channel 73 1550 nm, single-mode, Laser, 2 Channel 74 Channel 1 - RS422; Channel 2 - 1550 nm, single-mode, Laser 75 Channel 1 - G.703; Channel 2 - 1550 nm, Single-mode Laser 76 IEEE C37.94, 820 nm, 64 kbps, multimode, LED, 1 Channel 77 IEEE C37.94, 820 nm, 64 kbps, multimode, LED, 2 Channels 7A 820 nm, multimode, LED, 1 Channel 7B 1300 nm, multimode, LED, 1 Channel 7C 1300 nm, single-mode, ELED, 1 Channel 7D 1300 nm, single-mode, Laser, 1 Channel 7E Channel 1 - G.703; Channel 2 - 820 nm, multimode 7F Channel 1 - G.703; Channel 2 - 1300 nm, multimode 7G Channel 1 - G.703; Channel 2 - 1300 nm, single-mode ELED 7H 820 nm, multimode, LED, 2 Channels 7I 1300 nm, multimode, LED, 2 Channels 7J 1300 nm, single-mode, ELED, 2 Channels 7K 1300 nm, single-mode, Laser, 2 Channels 7L Channel 1 - RS422; Channel 2 - 820 nm, multimode, LED 7M Channel 1 - RS422; Channel 2 - 1300 nm, multimode, LED 7N Channel 1 - RS422; Channel 2 - 1300 nm, single-mode, ELED 7P Channel 1 - RS422; Channel 2 - 1300 nm, single-mode, Laser 7Q Channel 1 - G.703; Channel 2 - 1300 nm, single-mode Laser 7R G.703, 1 Channel 7S G.703, 2 Channels 7T RS422, 1 Channel 7W RS422, 2 Channels

B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 2-11

ORDER CODES CHAPTER 2: PRODUCT DESCRIPTION

2.3.1 Replacement modules

Replacement modules can be ordered separately. When ordering a replacement CPU module or front panel, provide the serial number of your existing unit.

Not all replacement modules apply to the B90 relay. The modules specified in the order codes for the B90 are available as replacement modules for the B90.

The order codes shown here are subject to change without notice. See the web page for the product for the latest options.

Table 2-5: UR order codes for replacement modules, horizontal units

POWER SUPPLY redundant supply only available in horizontal units and must be same type as main supply CPU | T | RS485 with 3 100Base-FX Ethernet , multimode, SFP with LC

FRONT PANEL + INTERFACE | 3C | Horizontal front panel with keypad and Engl ish display

CONTACT INPUTS AND OUTPUTS | 4A | 4 Solid-State (no monitoring) MOSFET outputs

CT/VT MODULES | 8L | Standard 4CT/4VT with enhanced diagnostics (not available for the C30) | 8N | Standard 8CT with enhanced diagnostics

INTER-RELAY COMMUNICATIONS | 2A | C37.94SM, 1300 nm single-mode, ELED, 1 channel single-mode

UR - ** - *

| SH A | 125 / 300 V AC/DC | SL H | 24 to 48 V (DC only)

| U | RS485 with 1 100Base-TX Ethernet , SFP RJ-45 + 2 100Base-FX Ethernet, multimode, SFP with LC | V | RS485 with 3 100Base-TX Ethernet, SFP with RJ-45

| 3D | Horizontal front panel with keypad and French display | 3R | Horizontal front panel with keypad and Russian display | 3A | Horizontal front panel with keypad and Chinese display | 3P | Horizontal front panel with keypad, user-programmable pushbuttons, and E nglish display | 3G | Horizontal front panel with keypad, user-programmable pushbuttons, and French display | 3S | Horizontal front panel with keypad, user-programmable pushbuttons, and Russian display | 3B | Horizontal front panel with keypad, user-programmable pushbuttons, and Chinese display | 3K | Enhanced front panel with English display | 3M | Enhanced front panel with French display | 3Q | Enhanced front panel with Russian display | 3U | Enhanced front panel with Chinese display | 3L | Enhanced front panel with English display and user-programmable pushbuttons | 3N | Enhanced front panel with French display and user-programmable pushbuttons | 3T | Enhanced front panel with Russian display and user-programmable pushbuttons | 3V | Enhanced front panel with Chinese display and user-programmable pushbuttons | 3W | Enhanced front panel with Turkish display | 3Y | Enhanced front panel with Turkish display and user-programmable pushbuttons | 3I | Enhanced front panel with German display | 3J | Enhanced front panel with German display and user-programmable pushbuttons | 3E | 7" Graphical front panel display in multiple languages with USB front port and user-programmable push buttons

| 4B | 4 Solid-State (voltage with optional current) MOSFET outputs | 4C | 4 Solid-State (current with optional voltage) MOSFET outputs | 4D | 16 Contact inputs with Auto-Burnishing | 4L | 14 Form-A (no monitoring) Latching outputs | 67 | 8 Form-A (no monitoring) outputs | 6A | 2 Form-A (voltage with optional current) and 2 Form-C outputs, 8 contact inputs | 6B | 2 Form-A (voltage with optional current) and 4 Form-C outputs, 4 contact inputs |6C|8 Form-C outputs | 6D | 16 Contact inputs | 6E | 4 Form-C outputs, 8 contact inputs |6F|8 Fast Form-C outputs | 6G | 4 Form-A (voltage with optional current) outputs, 8 contact inputs | 6H | 6 Form-A (voltage with optional current) outputs, 4 contact inputs | 6K | 4 Form-C and 4 Fast Form-C outputs | 6L | 2 Form-A (current with optional voltage) and 2 Form-C outputs, 8 contact inputs | 6M | 2 Form-A (current with optional voltage) and 4 Form-C outputs, 4 contact inputs | 6N | 4 Form-A (current with optional voltage) outputs, 8 contact inputs | 6P | 6 Form-A (current with optional voltage) outputs, 4 contact inputs | 6R | 2 Form-A (no monitoring) and 2 Form-C outputs, 8 contact inputs | 6S | 2 Form-A (no monitoring) and 4 Form-C outputs, 4 contact inputs | 6T | 4 Form-A (no monitoring) outputs, 8 contact inputs | 6U | 6 Form-A (no monitoring) outputs, 4 contact inputs | 6V | 2 Form-A outputs, 1 Form-C output , 2 Form-A (no monitoring) latching outputs, 8 contact inputs

| 8V | Standard 8VT with enhanced diagnostics (only one module supported)

| 2B | C37.94SM, 1300 nm single-mode, ELED, 2 channel single-mode | 2E | Bi-phase, single channel | 2F | Bi-phase, dual channel | 2G | IEEE C37.94, 820 nm, 128 kbps, multimode, LED, 1 Channel | 2H | IEEE C37.94, 820 nm, 128 kbps, multimode, LED, 2 Channels | 2I | Channel 1 - IEEE C37.94, multimode, 64/128 kbps; Channel 2 - 1300 nm, single-mode, Laser | 2J | Channel 1 - IEEE C37.94, multimode, 64/128 kbps; Channel 2 - 1550 nm, single-mode, Laser

2-12 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL

CHAPTER 2: PRODUCT DESCRIPTION SIGNAL PROCESSING

UR - ** - *

| 72 | 1550 nm, single-mode, Laser, 1 Channel | 73 | 1550 nm, single-mode, Laser, 2 Channel | 74 | Channel 1 - RS422; Channel 2 - 1550 nm, single-mode, Laser | 75 | Channel 1 - G.703; Channel 2 - 1550 nm, single-mode Laser | 76 | IEEE C37.94, 820 nm, multimode, LED, 1 Channel | 77 | IEEE C37.94, 820 nm, multimode, LED, 2 Channels | 7A | 820 nm, multimode, LED, 1 Channel | 7B | 1300 nm, multimode, LED, 1 Channel | 7C | 1300 nm, single-mode, ELED, 1 Channel | 7D | 1300 nm, single-mode, Laser, 1 Channel | 7E | Channel 1 - G.703; Channel 2 - 820 nm, multimode | 7F | Channel 1 - G.703; Channel 2 - 1300 nm, multimode | 7G | Channel 1 - G.703; Channel 2 - 1300 nm, single-mode ELED | 7H | 820 nm, multimode, LED, 2 Channels | 7I | 1300 nm, multimode, LED, 2 Channels | 7J | 1300 nm, single-mode, ELED, 2 Channels | 7K | 1300 nm, single-mode, Laser, 2 Channels | 7L | Channel 1 - RS422; Channel 2 - 820 nm, multimode, LED | 7M | Channel 1 - RS422; Channel 2 - 1300 nm, multimode, LED | 7N | Channel 1 - RS422; Channel 2 - 1300 nm, single-mode, ELED | 7P | Channel 1 - RS422; Channel 2 - 1300 nm, single-mode, Laser | 7Q | Channel 1 - G.703; Channel 2 - 1300 nm, single-mode Laser | 7R | G.703, 1 Channel | 7S | G.703, 2 Channels | 7T | RS422, 1 Channel | 7W | RS422, 2 Channels

2.4 Signal processing

2.4.1 UR signal processing

The UR series relays are microprocessor-based protective relays that are designed to measure power system conditions directly via CT and PT inputs and via other sources of information, such as analog inputs, communications inputs and contact inputs. The following figure shows the overall signal processing in URs.

An analog low pass anti-aliasing filter with a 3 dB corner frequency is set at 2.4 kHz and is used for current and voltage analog filtering as well as signal conditioning. The same filtering is applied for phase, ground currents, phase-to-phase (when applicable), and auxiliary voltages. The 2.4 kHz cut-off frequency applies to both 50 Hz and 60 Hz applications and fixed in the hardware, and thus is not dependent on the system nominal frequency setting.

B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 2-13

SIGNAL PROCESSING CHAPTER 2: PRODUCT DESCRIPTION

Figure 2-3: UR signal processing

The UR samples its AC signals at 64 samples per cycle, that is, at 3840 Hz in 60 Hz systems, and 3200 Hz in 50 Hz systems. The sampling rate is dynamically adjusted to the actual system frequency by an accurate and fast frequency tracking system.

The A/D converter has the following ranges of AC signals: Voltages:

Eq. 2-1

Currents:

Eq. 2-2

Current harmonics are estimated based on raw samples with the use of the full-cycle Fourier filter. Harmonics 2nd through 25th are estimated.

2-14 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL

CHAPTER 2: PRODUCT DESCRIPTION SPECIFICATIONS

True RMS value for the current is calculated on a per-phase basis. The true RMS can be used for demand recording or as an input signal to Time Overcurrent function, if the latter is intended for thermal protection. The true RMS is calculated as per the widely accepted definition:

Eq. 2-3

RMS values include harmonics, inter-harmonics, DC components, and so on, along with fundamental frequency values. The true RMS value reflects thermal effects of the current and is used for the thermal related monitoring and protection functions.

Protection and control functions respond to phasors of the fundamental and/or harmonic frequency components (magnitudes and angles), with an exception for some functions that have an option for RMS or fundamental measurements, or some function responding to RMS only. This type of response is explained typically in each element's section in the instruction manual.

Currents are pre-filtered using a Finite Impulse Response (FIR) digital filter. The filter is designed to reject DC components and low-frequency distortions, without amplifying high-frequency noise. This filter is referred to as a modified MIMIC filter, which provides excellent filtering and overall balance between speed and accuracy of filtering. The filter is cascaded with the full-cycle Fourier filter for the current phasor estimation.

Voltages are pre-filtered using a patented Finite Impulse Response (FIR) digital filter. The filter has been optimized to reject voltage transformers specific distortions, such as Capacitive Voltage Transformer (CVT) noise and high-frequency oscillatory components. The filter is cascaded with the half-cycle Fourier filter for the voltage phasor estimation.

The URs measure power system frequency using the Clarke transformation by estimating the period of the waveform from two consecutive zero-crossings in the same direction (negative-to-positive). Voltage or current samples are pre-filtered using a Finite Impulse Response (FIR) digital filter to remove high frequency noise contained in the signal. The period is used after several security conditions are met, such as true RMS signal must be above 6% nominal for a certain time and others. If these security conditions are not met, the last valid measurement is used for a specific time after which the UR reverts to nominal system frequency.

Synchrophasors are calculated using a patented convolution integral algorithm. This algorithm allows use of the same time-stamped samples, which are used for protection and taken at the same sampling frequency. This allows URs to use one sampling clock for both protection algorithms and synchrophasors.

Synchrophasors on firmware versions 7.23 and up have been tested and certified to meet IEEE C.37.118-2011 and C.37.118.1a-2014 standards for both metering and protection classes with outputs available up to 60 synchrophasors per second for the metering class and 120 synchrophasors per second for the protection class. Synchrophasors measurement are also available via IEC 61850-90-5 protocol.

Contact inputs threshold is settable in the firmware with 17, 33, 84, 166 VDC settings available. Inputs are scanned every

0.5 ms and can be conditioned for the critical applications, using debounce time timer, settable from 0.0 ms to 16.0 ms. Contact inputs with auto-burnishing are available as well, when external contacts are exposed to the contamination in a harsh industrial environment.

All measured values are available in the UR metering section on the front panel and via communications protocols. Measured analog values and binary signals can be captured in COMTRADE format with sampling rates from 8 to 64 samples per power cycle. Analog values can be captured with Data Logger, allowing much slower rates extended over long period of time.

Other advanced UR order code options are available to support IEC 61850 Ed2.0 (including fast GOOSE, MMS server, 61850 services, ICD/CID/IID files, and so on), IEEE 1588 (IEEE C37.238 power profile) based time synchronization, CyberSentry (advanced cyber security), the Parallel Redundancy Protocol (PRP), IEC 60870-5-103, and so on.

2.5 Specifications

Specifications are subject to change without notice.

B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 2-15

SPECIFICATIONS CHAPTER 2: PRODUCT DESCRIPTION

2.5.1 Protection elements

The operating times include the activation time of a trip rated form-A output contact unless otherwise indicated. FlexLogic operands of a given element are 4 ms faster. Take this into account when using FlexLogic to interconnect with other protection or control elements of the relay, building FlexLogic equations, or interfacing with other intelligent electronic devices (IEDs) or power system devices via communications or different output contacts. If not specified, the operate times given here are for a 60 Hz system at nominal system frequency. Operate times for a 50 Hz system are 1.2 times longer.

BUS DIFFERENTIAL (87B)

Pickup level: 0.050 to 6.000 pu in steps of 0.001 Low slope: 15 to 100% in steps of 1 High slope: 50 to 100% in steps of 1 Low breakpoint: 1.00 to 30.00 pu in steps of 0.01 High breakpoint: 1.00 to 30.00 pu in steps of 0.01 High set level: 0.10 to 99.99 pu in steps of 0.01 Dropout level: 97 to 98% of pickup Level accuracy:

0.1 to 2.0 × CT rating: ±0.5% of reading or ±1% of rated (whichever is greater) for six circuits or less in the zone >2.0 × CT rating ±1.5% of reading of the maximum circuit current

Operating time: one power system cycle (typical) Number of zones: 1 or 6 (option) Max number of inputs: 8, 16, or 24 (option)

CT TROUBLE

Responding to: Differential current Pickup level: 0.020 to 2.000 pu in steps of 0.001 Pickup delay: 1.0 to 60.0 sec. in steps of 0.1 Timer accuracy: ±3% of operate time or ±1/4 cycle (whichever is greater) Availability: one per zone of protection

ISOLATOR MONITORING

Responding to: Both normally-open and normally-closed auxiliary contacts Asserting: Isolator Position, Isolator Alarm, Block Switching Alarm pickup delay: 0.00 to 120.00 s in steps of 0.05 Timer accuracy: ±3% of operate time or ±1/4 cycle (whichever is greater)

TIME OVERCURRENT

Pickup level: 0.020 to 30.000 pu in steps of 0.001 Dropout level: 97 to 98% of pickup Level accuracy:

0.1 to 2.0 × CT 0.5% of reading or 1% of nominal (whichever is greater) above 2.0 × CT 1.5% of reading

Curve shapes: IEEE Moderately/Very/Extremely Inverse; IEC (and BS) A/B/C and Short Inverse; GE IAC Inverse,

Short/Very/Extremely Inverse; I

curve) TD multiplier: 0.00 to 600.00 in steps of 0.01 Reset type: Instantaneous or Timed (per IEEE) Curve timing accuracy at 1.03 to 20 x pickup:

±3.5% of operate time or ±1/2 cycle (whichever is greater) from pickup to operate

t; FlexCurves™ (programmable); Definite Time (0.01 s base

INSTANTANEOUS OVERCURRENT

Pickup level: 0.020 to 30.000 pu in steps of 0.001 Dropout level: 97 to 98% of pickup Level accuracy:

0.1 to 2.0 × CT 0.5% of reading or 1% of nominal (whichever is greater) above 2.0 × CT 1.5% of reading

2-16 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL

CHAPTER 2: PRODUCT DESCRIPTION SPECIFICATIONS

Pickup delay: 0 to 65.535 s in steps of 0.001 Reset delay: 0 to 65.535 s in steps of 0.001 Timer accuracy: ±3% of operate time or ±1/4 cycle (whichever is greater) Operate time: <16 ms at 3x pickup at 60 Hz

UNDERVOLTAGE

Pickup level: 0.004 to 3.000 pu in steps of 0.001 Dropout level: 102 to 103% of pickup Level accuracy: ±0.5% of reading from 10 to 208 V Pickup delay: 0 to 65.535 s in steps of 0.001 Reset delay: 0 to 65.535 s in steps of 0.001 Timer accuracy: ±3% of operate time or ±1/4 cycle (whichever is greater) Operate time: <16 ms at <0.9 x pickup at 60 Hz

END FAULT PROTECTION

IOC pickup level: 0.020 to 30.000 pu in steps of 0.001 IOC dropout level: 97 to 98% of pickup Level accuracy

at 0.1 to 2.0 × CT: 0.5% of reading or 1% of nominal (whichever is greater) above 2.0 × CT: 1.5% of reading

CB open pickup timer: 0 to 65.535 s in steps of 0.001 End Fault pickup timer: 0 to 65.535 s in steps of 0.001 Timer accuracy: ±3% of operate time or ±8 ms, whichever is greater

BREAKER FAILURE

Mode: 3-pole Current supervision: phase current Current supv. pickup: 0.020 to 30.000 pu in steps of 0.001 Current supv. dropout: 97 to 98% of pickup Current supv. accuracy:

0.1 to 2.0 × CT rating: ±0.75% of reading or ±2% of rated (whichever is greater) above 2 × CT rating: ±2.5% of reading

Timer accuracy: ±3% of operate time or ±1/4 cycle (whichever is greater)

TRIP BUS (TRIP WITHOUT FLEXLOGIC)

Number of elements: 6 Number of inputs: 16 Operate time: <2 ms at 60 Hz Timer accuracy: ±3% or 10 ms, whichever is greater

2.5.2 User-programmable elements

FLEXLOGIC

Programming language: Reverse Polish Notation with graphical visualization (keypad programmable) Lines of code: 1024 Internal variables: 64 Supported operations: NOT, XOR, OR (2 to 16 inputs), AND (2 to 16 inputs), NOR (2 to 16 inputs), NAND (2 to 16 inputs),

latch (reset-dominant), edge detectors, timers Inputs: any logical variable, contact, or virtual input Number of timers: 32 Pickup delay: 0 to 60000 (ms, sec., min.) in steps of 1 Dropout delay: 0 to 60000 (ms, sec., min.) in steps of 1

FLEXCURVES™

Number: 4 (A through D) Reset points: 40 (0 through 1 of pickup) Operate points: 80 (1 through 20 of pickup)

B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 2-17

SPECIFICATIONS CHAPTER 2: PRODUCT DESCRIPTION

Time delay: 0 to 65535 ms in steps of 1

FLEX STATES

Number: up to 256 logical variables grouped under 16 Modbus addresses Programmability: any logical variable, contact, or virtual input

NON-VOLATILE LATCHES

Type: set-dominant or reset-dominant Number: 16 (individually programmed) Output: stored in non-volatile memory Execution sequence: as input prior to protection, control, and FlexLogic

USER-PROGRAMMABLE LEDs (Enhanced and standard front panels)

Number: 48 plus trip and alarm Programmability: from any logical variable, contact, or virtual input Reset mode: self-reset or latched

LED TEST

Initiation: from any contact input or user-programmable condition Number of tests: 3, interruptible at any time Duration of full test: approximately 3 minutes Test sequence 1: all LEDs on Test sequence 2: all LEDs off, one LED at a time on for 1 s Test sequence 3: all LEDs on, one LED at a time off for 1 s

USER-DEFINABLE DISPLAYS (Enhanced and standard front panels)

Number of displays: 16 Lines of display: 2 × 20 alphanumeric characters Parameters: up to 5, any Modbus register addresses Invoking and scrolling: keypad, or any user-programmable condition, including pushbuttons

CONTROL PUSHBUTTONS (Enhanced and standard front panels)

Number of pushbuttons: 7 Operation: drive FlexLogic operands

USER-PROGRAMMABLE PUSHBUTTONS (Optional)

Number of pushbuttons: 12 on standard front panel

16 on enhanced horizontal front panel 6 on enhanced vertical front panel

16 on graphical front panel (8 physical pushbuttons, 8 graphical interface pushbuttons) Mode: self-reset, latched Display message: 2 lines of 20 characters each Drop-out timer: 0.00 to 60.00 s in steps of 0.05 Autoreset timer: 0.2 to 600.0 s in steps of 0.1 Hold timer: 0.0 to 10.0 s in steps of 0.1

DIGITAL ELEMENTS

Number of elements: 48 Operating signal: any FlexLogic operand Pickup delay: 0.000 to 999999.999 s in steps of 0.001 Dropout delay: 0.000 to 999999.999 s in steps of 0.001 Timing accuracy: ±3% or ±4 ms, whichever is greater

2.5.3 Monitoring

OSCILLOGRAPHY

Maximum records: 64 Sampling rate: 64 samples per power cycle

2-18 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL

CHAPTER 2: PRODUCT DESCRIPTION SPECIFICATIONS

Triggers: any element pickup, dropout, or operate; contact input change of state; contact output change

of state; FlexLogic equation Data: AC input channels; element state; contact input state; contact output state Data storage: in non-volatile memory

EVENT RECORDER

Capacity: 1024 events Time-tag: to 1 microsecond Triggers: any element pickup, dropout, or operate; contact input change of state; contact output change

of state; self-test events Data storage: in non-volatile memory

USER-PROGRAMMABLE FAULT REPORT

Number of elements: 2 Pre-fault trigger: any FlexLogic operand Fault trigger: any FlexLogic operand Recorder quantities: 32 (any FlexAnalog

value)

2.5.4 Metering

CURRENT METERING

Accuracy at

0.1 to 2.0 × CT rating: ±0.25% of reading or ±0.1% of rated (whichever is greater) > 2.0 × CT rating: ±1.0% of reading

VOLTAGE

Accuracy: ±0.5% of reading from 10 to 208 V

FREQUENCY

Accuracy at

V = 0.8 to 1.2 pu: ±0.001 Hz (when voltage signal is used for frequency measurement) I = 0.1 to 0.25 pu: ±0.005 Hz I > 0.25 pu: ±0.02 Hz (when current signal is used for frequency measurement)

2.5.5 Inputs

AC CURRENT

CT rated primary: 1 to 50000 A CT rated secondary: 1 A or 5 A by connection Relay burden: < 0.2 VA at rated secondary Conversion range: 0.02 to 46 × CT rating RMS symmetrical Current withstand: 20 ms at 250 times rated

1 sec at 100 times rated

continuous 4xInom

URs equipped with 24 CT inputs have a maximum operating temperature of 50°C Short circuit rating: 150000 RMS symmetrical amperes, 250 V maximum (primary current to external CT)

AC VOLTAGE

VT rated secondary: 50.0 to 240.0 V VT ratio: 1.00 to 24000.00 Relay burden: < 0.25 VA at 120 V Conversion range: 1 to 275 V Voltage withstand: continuous at 260 V to neutral

1 min/hr at 420 V to neutral

B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 2-19

SPECIFICATIONS CHAPTER 2: PRODUCT DESCRIPTION

FREQUENCY

Nominal frequency setting: 25 to 60 Hz Sampling frequency: 64 samples per power cycle Tracking frequency range: 20 to 70 Hz

CONTACT INPUTS

Dry contacts: 1000 Ω maximum Wet contacts: 300 V DC maximum Selectable thresholds: 17 V, 33 V, 84 V, 166 V Tolerance: ±10% Contacts per common return: 4 Recognition time: < 1 ms Debounce time: 0.0 to 16.0 ms in steps of 0.5 Continuous current draw: 4 mA (when energized)

CONTACT INPUTS WITH AUTO-BURNISHING

Dry contacts: 1000 Ω maximum Wet contacts: 300 V DC maximum Selectable thresholds: 17 V, 33 V, 84 V, 166 V Tolerance: ±10% Contacts per common return: 2 Recognition time: < 1 ms Debounce time: 0.0 to 16.0 ms in steps of 0.5 Continuous current draw: 4 mA (when energized) Auto-burnish impulse current: 50 to 70 mA Duration of auto-burnish impulse: 25 to 50 ms

IRIG-B INPUT

IRIG formats accepted: B000…B007, B120…B127 IRIG control bits: IEEE Std C37.118.1-2011 Amplitude modulation: 1 to 10 V pk-pk DC shift: TTL–Compatible Input impedance: 50 kΩ Isolation: 2 kV

DIRECT INPUTS

Input points: 256 Remote devices: 16 Default states on loss of comms.: On, Off, Latest/Off, Latest/On Ring configuration: Yes, No Data rate: 64 or 128 kbps CRC: 32-bit CRC alarm:

Responding to: Rate of messages failing the CRC Monitoring message count: 10 to 10000 in steps of 1 Alarm threshold: 1 to 1000 in steps of 1

Unreturned message alarm:

Responding to: Rate of unreturned messages in the ring configuration Monitoring message count: 10 to 10000 in steps of 1 Alarm threshold: 1 to 1000 in steps of 1

2.5.6 Power supply

LOW RANGE

Nominal DC voltage: 24 to 48 V Minimum DC voltage: 20 V

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CHAPTER 2: PRODUCT DESCRIPTION SPECIFICATIONS

Maximum DC voltage: 75 V for SL power supply module Voltage loss hold-up: 200 ms duration at maximum load NOTE: Low range is DC only.

HIGH RANGE

Nominal DC voltage: 125 to 250 V Minimum DC voltage: 88 V Maximum DC voltage: 300 V Nominal AC voltage: 100 to 240 V at 50/60 Hz Minimum AC voltage: 88 V at 25 to 100 Hz Maximum AC voltage: 265 V at 25 to 100 Hz Voltage loss hold-up: 200 ms duration at maximum load

ALL RANGES

Volt withstand: 2 × Highest Nominal Voltage for 10 ms Power consumption: typical = 15 to 20 W/VA

maximum = 45 W/VA

contact factory for exact order code consumption

INTERNAL FUSE

Ratings:

Low range power supply: 8 A / 250 V High range power supply: 4 A / 250 V

Interrupting capacity:

AC: 100 000 A RMS symmetrical DC: 10 000 A

2.5.7 Outputs

FORM-A RELAY

Make and carry for 0.2 s: 30 A as per ANSI C37.90 Carry continuous: 6 A Break (DC inductive, L/R = 40 ms):

Voltage Current

24 V 1 A 48 V 0.5 A 125 V 0.3 A 250 V 0.2 A

Operate time: < 4 ms Contact material: silver alloy

LATCHING RELAY

Make and carry for 0.2 s: 30 A as per ANSI C37.90 Carry continuous: 6 A as per IEEE C37.90 Break (DC resistive as per IEC61810-1):

Voltage Current

24 V 6 A 48 V 1.6 A 125 V 0.4 A 250 V 0.2 A

Operate time: < 4 ms Contact material: silver alloy

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SPECIFICATIONS CHAPTER 2: PRODUCT DESCRIPTION

Control: separate operate and reset inputs Control mode: operate-dominant or reset-dominant

FORM-A VOLTAGE MONITOR

Applicable voltage: approx. 15 to 250 V DC Trickle current: approx. 1 to 2.5 mA

FORM-A CURRENT MONITOR

Threshold current: approx. 80 to 100 mA

FORM-C AND CRITICAL FAILURE RELAY

Make and carry for 0.2 s: 30 A as per ANSI C37.90 Carry continuous: 8 A Break (DC inductive, L/R = 40 ms):

Voltage Current

24 V 1 A 48 V 0.5 A 125 V 0.3 A 250 V 0.2 A

Operate time: < 8 ms Contact material: silver alloy

FAST FORM-C RELAY

Make and carry: 0.1 A max. (resistive load) Minimum load impedance:

Input voltage Impedance

2 W Resistor 1 W Resistor

250 V DC 20 KΩ 50 KΩ 120 V DC 5 KΩ 2 KΩ 48 V DC 2 KΩ 2 KΩ 24 V DC 2 KΩ 2 KΩ Note: values for 24 V and 48 V are the same due to a

required 95% voltage drop across the load impedance.

Operate time: < 0.6 ms Internal Limiting Resistor: 100 Ω, 2 W

SOLID-STATE OUTPUT RELAY

Operate and release time: <100 µs Maximum voltage: 265 V DC Maximum leakage current in off state (excluding voltage monitor circuit current): 100 µA Maximum continuous current: 5 A at 45°C; 4 A at 65°C Make and carry:

for 0.2 s: 30 A as per ANSI C37.90 for 0.03 s: 300 A

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CHAPTER 2: PRODUCT DESCRIPTION SPECIFICATIONS

Breaking capacity:

Specification UL 508 Utility application

Operations per interval

Break capability (0 to 250 V DC)

5000 operations, 1 second on, 9 seconds off

1000 operations

0.5 seconds on,

0.5 seconds off

3.2 A at L/R = 10 ms 10 A at L/R = 40 ms 10 A at L/R = 40 ms

1.6 A at L/R = 20 ms

0.8 A L/R =40ms

(autoreclose scheme)

5 operations

0.2 seconds on

0.2 seconds off within 1 minute

Industrial application

10000 operations

0.2 seconds on 30 seconds off

CONTROL POWER EXTERNAL OUTPUT (For dry contact input)

Capacity: 100 mA DC at 48 V DC Isolation: ±300 Vpk

DIRECT OUTPUTS

Output points: 256

2.5.8 Communications

IEC 61850

IEC 61850: Supports IEC 61850 Edition 2.0. See the UR Family Communications Guide and its conformance

statements.

RS232 (Enhanced and standard front panels)

Front port: 19.2 kbps, Modbus RTU

USB (Graphical front panel)

Front port: USB 2.0 type B

RS485

1 rear port: up to 115 kbps, Modbus RTU, DNP 3, IEC 60870-5-103 Typical distance: 1200 m Isolation: 2 kV, isolated together at 36 Vpk

FIBER ETHERNET PORT

Parameter Fiber type

100 Mb multimode

Wavelength 1310 nm Connector LC Transmit power –20 dBm Receiver sensitivity –30 dBm Power budget 10 dB Maximum input power –14 dBm Typical distance 2 km Full duplex yes Redundancy yes

ETHERNET (10/100 MB TWISTED PAIR)

Modes: 10 Mb, 10/100 Mb (auto-detect) Connector: RJ45

B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 2-23

SPECIFICATIONS CHAPTER 2: PRODUCT DESCRIPTION

SIMPLE NETWORK TIME PROTOCOL (SNTP)

Clock synchronization error: <10 ms (typical)

PRECISION TIME PROTOCOL (PTP)

PTP IEEEStd1588 2008 (version 2) Power Profile (PP) per IEEEStandardPC37.238TM2011 Slave-only ordinary clock Peer delay measurement mechanism

PARALLEL REDUNDANCY PROTOCOL (PRP) (IEC 62439-3 CLAUSE 4, 2012)

Ethernet ports used: 2 and 3 Networks supported: 10/100 Mb Ethernet

OTHER

TFTP, SFTP, HTTP, IEC 60870-5-104, Ethernet Global Data (EGD), IEEE C37.118

2.5.9 Inter-relay communications

SHIELDED TWISTED-PAIR INTERFACE OPTIONS

Interface type Typical distance

RS422 1200 m G.703 100 m

RS422 distance is based on transmitter power and does not take into consideration the clock source provided by the user.

LINK POWER BUDGET AND MAXIMUM OPTICAL INPUT POWER

The following specifications apply to filter interface modules manufactured from January 2012.

Emitter, fiber type Cable type Transmit power Received

820 nm, Multimode 62.5/125 μm -16 dBm -32 dBm 16 dBm -8 dBm

50/125 μm -20 dBm 12 dBm

1300 nm, Multimode 62.5/125 μm -16 dBm -32 dBm 16 dBm -8 dBm

50/125 μm -20 dBm 12 dBm

1300 nm, Single mode

1300 nm Laser, Single mode

1550 nm Laser, Single mode

9/125 μm -15 dBm -32 dBm 17 dBm -8 dBm

9/125 μm 0 dBm -34 dBm 34 dBm -8 dBm

9/125 μm 5 dBm -34 dBm 39 dBm -10 dBm

sensitivity

Power budget Maximum

optical input power

The following specifications apply to filter interface modules implemented before January 2012.

Emitter, fiber type Transmit

power

820 nm LED, Multimode –20 dBm –30 dBm 10 dB –7.6 dBm 1300 nm LED, Multimode –21 dBm –30 dBm 9 dB –11 dBm 1300 nm ELED, Single mode –23 dBm –32 dBm 9 dB –14 dBm 1300 nm Laser, Single mode –1 dBm –30 dBm 29 dB –14 dBm 1550 nm Laser, Single mode +5 dBm –30 dBm 35 dB –14 dBm

2-24 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL

Received sensitivity

Power budget Maximum optical

input power

CHAPTER 2: PRODUCT DESCRIPTION SPECIFICATIONS

The power budgets are calculated from the manufacturer’s worst-case transmitter power and worst case receiver sensitivity.

The power budgets for the 1300 nm ELED are calculated from the manufacturer's transmitter power and receiver sensitivity at ambient temperature. At extreme temperatures these values deviate based on component tolerance. On average, the output power decreases as the temperature is increased by a factor of 1 dB / 5 °C.

TYPICAL LINK DISTANCE

Emitter, fiber type Cable type Connector

820 nm LED, multimode

1300 nm LED, multimode

1300 nm ELED, single mode

1300 nm Laser, single mode

1550 nm Laser, single mode

62.5/125 μm ST 1.65 km 2 km 50/125 μm ST 1.65 km 2 km

62.5/125 μm ST 4 km 5 km 50/125 μm ST 4 km 5 km 9/125 μm ST 11.4 km 20 km

9/125 μm ST 64 km 65 km

9/125 μm ST 105 km 125 km

type

Typical distance Before

January 2012

From January 2012

Typical distances listed are based on the following assumptions for system loss. As actual losses vary from one installation to another, the distance covered by your system can vary.

CONNECTOR LOSSES (Total of both ends)

ST connector: 0.7 dB (each)

FIBER LOSSES

820 nm multimode: 3 dB/km 1300 nm multimode: 1 dB/km 1300 nm single mode: 0.35 dB/km 1550 nm single mode: 0.25 dB/km Splice losses: one splice every 2 km at 0.05 dB loss per splice

SYSTEM MARGIN

3 dB additional loss added to calculations to compensate for all other losses.

Compensated difference in transmitting and receiving (channel asymmetry) channel delays using GPS satellite clock: 10 ms

2.5.10 CyberSentry security

OPTIONS

Software options: Level 1

2.5.11 Graphical front panel

DISPLAY

Type: color graphical back-lit LCD display Size: 7 inches (17.8 cm) Resolution: 800 by 480 pixels

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SPECIFICATIONS CHAPTER 2: PRODUCT DESCRIPTION

Pages: 5 single-line diagram pages with controls, status, and metering values

up to 8 annunciator pages with total of 96 annunciator windows 1 phasor metering page for each AC Source 5 tabular metering pages with dynamic metering and status event records page with dynamic update product information page settings, actual values, error messages (targets)

LED INDICATORS

Functions: 5 device status indicators

9 event cause indicators 8 user-programmable pushbutton indicators

PUSHBUTTONS

Type: membrane Functions: 5 bottom Tab pushbuttons and 1 Home pushbutton for page recall

4 directional, 1 ENTER, and 1 ESCAPE pushbutton element selection 10 side pushbuttons for power system element control RESET pushbutton 8 physical user-programmable pushbuttons, 8 graphical interface pushbuttons

INGRESS PROTECTION

IP code: IP20 front, IP54 front with graphical front panel, IP10 back

2.5.12 Environmental

AMBIENT TEMPERATURES

Storage temperature: –40 to 85°C Operating temperature: –40 to 60°C; the LCD contrast can be impaired at temperatures less than –20°C

HUMIDITY

Humidity: operating up to 95% (non-condensing) at 55°C (as per IEC60068-2-30 variant 1, 6 days)

OTHER

Altitude: 2000 m (maximum) Pollution degree: II Overvoltage category: II Ingress protection: IP20 front, IP10 back Noise: 0 dB

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2.5.13 Type tests

B90 TYPE TESTS

Test Reference standard Test level

Dielectric voltage withstand EN 60255-5 Impulse voltage withstand EN 60255-5 Damped oscillatory IEC 61000-4-18 / IEC 60255-22-1 2.5 kV CM, 1 kV DM Electrostatic discharge EN 61000-4-2 / IEC 60255-22-2 Level 3 RF immunity EN 61000-4-3 / IEC 60255-22-3 Level 3 Fast transient disturbance EN 61000-4-4 / IEC 60255-22-4 Class A and B Surge immunity EN 61000-4-5 / IEC 60255-22-5 Level 3 and 4 Conducted RF immunity EN 61000-4-6 / IEC 60255-22-6 Level 3 Power frequency immunity EN 61000-4-7 Voltage interruption and ripple DC IEC 60255-11 12% ripple, 200 ms interrupts Radiated and conducted emissions CISPR11 / CISPR22 / IEC 60255-25 Class A Sinusoidal vibration IEC 60255-21-1 Class 1 Shock and bump IEC 60255-21-2 Class 1 Seismic IEC 60255-21-3 Class 1 Power magnetic immunity IEC 61000-4-8 Level 5 Pulse magnetic immunity IEC 61000-4-9 Level 4 Damped magnetic immunity IEC 61000-4-10 Level 4 Voltage dip and interruption IEC 61000-4-11 0, 40, 70, 80% dips; 250 / 300 cycle interrupts Damped oscillatory IEC 61000-4-12 Conducted RF immunity, 0 to 150 kHz IEC 61000-4-16 Level 4 Voltage ripple IEC 61000-4-17 15% ripple Ingress protection IEC 60529 Cold IEC 60068-2-1 –40°C for 16 hours Hot IEC 60068-2-2 85°C for 16 hours Humidity IEC 60068-2-30 6 days, variant 1 Damped oscillatory IEEE/ANSI C37.90.1 2.5 kV, 1 MHz RF immunity IEEE/ANSI C37.90.2 20 V/m, 80 MHz to 1 GHz Safety UL 508 e83849 NKCR Safety UL C22.2-14 e83849 NKCR7 Safety UL 1053 e83849 NKCR Safety IEC 60255-27 Insulation: class 1, Pollution degree: 2, Over

/ IEC 60255-22-7 Class A and B

2.2 kV 5 kV

2.5 kV CM, 1 kV DM

IP20 front, IP10 back

voltage cat II

1 Not tested by third party.

2.5.14 Production tests

THERMAL

Products go through an environmental test based upon an Accepted Quality Level (AQL) sampling process.

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SPECIFICATIONS CHAPTER 2: PRODUCT DESCRIPTION

2.5.15 Approvals

APPROVALS

Compliance Applicable council directive According to

CE Low voltage directive EN 60255-5

EMC directive EN 60255-26 / EN 50263

EN 61000-6-5

C-UL-US --- UL 508

UL 1053 C22.2 No. 14

2.5.16 Maintenance

MOUNTING

Attach mounting brackets using 20 inch-pounds (±2 inch-pounds) of torque.

CLEANING

Normally, cleaning is not required. When dust has accumulated on the front panel display, wipe with a dry cloth.

To avoid deterioration of electrolytic capacitors, power up units that are stored in a de-energized state once per year, for one hour continuously.

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B90 Low Impedance Bus Differential System

Chapter 3: Installation

Installation

This chapter outlines installation of hardware and software. You unpack, check, mount, and wire the unit, then install the software and configure settings.

3.1 Unpack and inspect

Use this procedure to unpack and inspect the unit.

1. Open the relay package and check that the following items have been delivered:

–B90 – Mounting screws – GE EnerVista™ DVD (software and documentation) – B90 Instruction Manual (soft copy on DVD; printed copy if ordered) – UR Family Communications Guide (soft copy on DVD; printed copy if Instruction Manual ordered) –Certificate of Calibration –Test Report – EC Declaration of Conformity – Front panel label package

2. Inspect the unit for physical damage.

3. View the rear nameplate and verify that the correct model has been delivered. The model number is at the top right.

4. Any protective plastic film on the front panel is normally peeled off, but also can be left on.

5. For any issues, contact GE as outlined in the For Further Assistance section in chapter 1.

6. Check that you have the latest copy of the B90 Instruction Manual and the UR Family Communications Guide, for the

applicable firmware version, at http://www.gegridsolutions.com/multilin/manuals/index.htm

B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 3-1

PANEL CUTOUTS CHAPTER 3: INSTALLATION

The Instruction Manual outlines how to install, configure, and use the unit. The Communications Guide is for advanced use with communication protocols. The warranty is included at the end of this instruction manual and on the GE Grid Solutions website.

3.2 Panel cutouts

Install the relay in an indoor environment within the environmental specifications. The relay complies with Pollution Category II, which means installation in an office, laboratory, or testing environment.

The front panel can be switched in the EnerVista software between enhanced and standard panels under Maintenance > Change Front Panel.

The B90 is available as a 19-inch rack horizontal mount unit with a removable front panel. The front panel can be specified as either standard or enhanced at the time of ordering. The enhanced front panel contains additional user-programmable pushbuttons and LED indicators.

The modular design allows the relay to be upgraded and repaired by qualified service personnel. The front panel is hinged to allow access to the removable modules, and is itself removable to allow mounting on doors with limited rear depth.

The case dimensions are shown in the following figure, along with panel cutout details for panel mounting. When planning the location of your panel cutout, ensure that provision is made for the front panel to swing open without interference to or from adjacent equipment.

The relay must be mounted such that the front panel sits semi-flush with the panel or switchgear door, allowing the operator access to the keypad and the RS232 communications port. The relay is secured to the panel with the use of four screws supplied with the relay.

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CHAPTER 3: INSTALLATION PANEL CUTOUTS

Figure 3-1: Horizontal dimensions (enhanced front panel)

Figure 3-2: Horizontal mounting (enhanced and graphical front panel)

B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 3-3

PANEL CUTOUTS CHAPTER 3: INSTALLATION

Figure 3-3: Horizontal mounting and dimensions (standard front panel)

Figure 3-4: Horizontal dimension (graphical front panel)

3-4 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL

CHAPTER 3: INSTALLATION PANEL CUTOUTS

3.2.1 Rear terminal layout

Do not touch any rear terminals while the relay is energized, else death or serious injury can result from electrical shock.

The small form-factor pluggable ports (SFPs) are pluggable transceivers. They transmit and receive and convert electrical signals to optical signals and vice-versa. They are inserted into the Ethernet ports on the CPU module. A photo in the Maintenance chapter shows this plug-in device. Do not use non-validated transceivers or install validated transceivers in the wrong Ethernet slot, else damage can occur.

The relay follows a convention with respect to terminal number assignments, which are three characters long and assigned by module slot position, row number, and column letter. Two-slot wide modules take their slot designation from the first slot position (nearest to CPU module), indicated by an arrow marker on the terminal block. The figure shows an example of rear terminal assignments.

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PANEL CUTOUTS CHAPTER 3: INSTALLATION

Figure 3-5: Example of modules in F and H slots

The torque used to connect the screws that connect the terminal blocks (screws a, b, c) and the metal plates over empty slots to the chassis is 9 inch-pounds. For the screws used to wire the terminal blocks (rows 1 to 8), use 19 During manufacturing, the power supply and CPU modules are installed in slots B and D of the chassis with 13 inch-pounds of torque on the screws at the top and bottom of the modules. Wire connections to these two modules at 13 inch-pounds.

±1 inch-pounds.

Figure 3-6: CPU modules and power supply

The following figure shows the optical connectors for CPU modules.

Figure 3-7: LC fiber connector (left) and ST fiber connector (right)

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CHAPTER 3: INSTALLATION WIRING

3.3 Wiring

3.3.1 Typical wiring

Figure 3-8: B90 is a multi-IED protection system

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WIRING CHAPTER 3: INSTALLATION

The wiring diagrams on the next four pages are based on the following order code: B90-H02-HCL-F8H-H6H-L8H-N6A-S8H-U6H-W7H. The purpose of these diagrams is to provide examples of how the B90 is typically wired, not

specifically how to wire your own relay. See the sections following the wiring diagrams for examples on connecting your relay correctly based on your relay configuration and order code.

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CHAPTER 3: INSTALLATION WIRING

Figure 3-9: Typical wiring diagram (Phase A; T module shown for CPU)

B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 3-9

WIRING CHAPTER 3: INSTALLATION

Figure 3-10: Typical wiring diagram (Phase B; T module shown for CPU)

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CHAPTER 3: INSTALLATION WIRING

Figure 3-11: Typical wiring diagram (Phase C; T module shown for CPU)

B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 3-11

WIRING CHAPTER 3: INSTALLATION

Figure 3-12: Typical wiring diagram (breaker fail and isolator monitoring; T module shown)

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CHAPTER 3: INSTALLATION WIRING

3.3.2 Dielectric strength

Dielectric strength is the maximum electric strength that can be sustained without breakdown. It is measured in volts. The table shows the dielectric strength of the UR-series module hardware.

Table 3-1: Dielectric strength of UR series modules

Module type Module function Terminals Dielectric strength

From To

1 Power supply High (+); Low (+); (–) Chassis 2000 V AC for 1 minute 1 Power supply 48 V DC (+) and (–) Chassis 2000 V AC for 1 minute 1 Power supply Relay terminals Chassis 2000 V AC for 1 minute 2 Reserved N/A N/A N/A 3 Reserved N/A N/A N/A 4 Digital contact inputs/

outputs 5 Analog inputs/outputs All except 8b Chassis < 50 V DC 6 Digital contact inputs/

outputs 7 G.703 All except 2b, 3a, 7b, 8a Chassis 2000 V AC for 1 minute

RS422 All except 6a, 7b, 8a Chassis < 50 V DC 8 CT/VT All Chassis 2000 V AC for 1 minute 9 CPU All Chassis 2000 V AC for 1 minute

All Chassis 2000 V AC for 1 minute

Filter networks and transient protection clamps are used in the hardware to prevent damage caused by high peak voltage transients, radio frequency interference (RFI), and electromagnetic interference (EMI). These protective components can be damaged by application of the ANSI/IEEE C37.90 specified test voltage for a period longer than the specified minute.

3.3.3 Control power

Control power supplied to the relay must be connected to the matching power supply range of the relay. If voltage is applied to the wrong terminals, damage can occur.

The B90, like almost all electronic relays, contains electrolytic capacitors. These capacitors are wellknown to deteriorate over time if voltage is not applied periodically. Deterioration can be avoided by powering up the relay at least once a year.

The power supply module can be ordered for two possible voltage ranges, and the B90 can be ordered with or without a redundant power supply module option. Each range has a dedicated input connection for proper operation. The ranges are as follows (see the Specifications section of chapter 2 for details):

• Low (LO) range — 24 to 48 V (DC only) nominal

• High (HI) range — 125 to 250 V nominal The power supply module provides power to the relay and supplies power for dry contact input connections. The power supply module provides 48 V DC power for dry contact input connections and a critical failure relay (see the

Typical Wiring Diagram earlier). The critical failure relay is a form-C device that is energized once control power is applied and the relay has successfully booted up with no critical self-test failures. If on-going self-test diagnostic checks detect a critical failure (see the Self-Test Errors section in chapter 7) or control power is lost, the relay de-energizes.

For high-reliability systems, the B90 has a redundant option in which two B90 power supplies are placed in parallel on the bus. If one of the power supplies becomes faulted, the second power supply assumes the full load of the relay without any interruptions. Each power supply has a green LED on the front of the module to indicate that it is functional. The critical fail relay of the module also indicates a faulted power supply.

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WIRING CHAPTER 3: INSTALLATION

An LED on the front of the control power module shows the status of the power supply, as outlined in the table.

Table 3-2: Power supply LED on front panel

LED indication Power supply

Continuous on OK On/off cycling Failure Off Failure or no power

Figure 3-13: Control power connection

3.3.4 CT and VT modules

Information on the CT and VT modules for the B90 relay is shown here.

Verify that the connection made to the relay nominal current of 1 A or 5 A matches the secondary rating of the connected CTs. Unmatched CTs may result in equipment damage or inadequate protection.

Each AC current input has an isolating transformer and an automatic shorting mechanism that shorts the input when the module is withdrawn from the chassis. There are no internal ground connections on the current inputs. Current transformers with 1 to 50000 A primaries and 1 A or 5 A secondaries may be used.

Each B90 voltage input is intended for monitoring a single-phase voltage. The may include phase voltages or neutral voltage from the open-delta VT.

All CT and VT modules are available with enhanced diagnostics. These modules can automatically detect CT/VT hardware failure and take the relay out of service.

Substitute the tilde “~” symbol with the slot position of the module in the following figure.

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CHAPTER 3: INSTALLATION WIRING

Figure 3-14: CT/VT module wiring

3.3.5 Contact inputs and outputs

Nearly all contact input/output modules have 24 terminal connections. The connections are arranged typically as three terminals per row, with eight rows in total. A given row of three terminals can be used for the outputs of one relay. For example, for form-C relay outputs, the terminals connect to the normally open (NO), normally closed (NC), and common contacts of the relay. For a form-A output, there are options of using current or voltage detection for feature supervision, depending on the module ordered. The terminal configuration for contact inputs is different for the two applications.

The contact inputs are grouped with a common return. The input/output modules have three versions of grouping: four inputs per common return, five inputs per common return on a high-density module, and two inputs per common return. When a contact input/output module is ordered, four inputs per common is used. If the inputs must be isolated per row, then two inputs per common return are selected (4D module).

The tables and diagrams on the following pages illustrate the module types (6A and so on) and contact arrangements that can be ordered for the relay. Since an entire row is used for a single contact output, the name is assigned using the module slot position and row number. However, since there are two contact inputs per row, these names are assigned by module slot position, row number, and column position.

Some form-A / solid-state relay outputs include circuits to monitor the DC voltage across the output contact when it is open, and the DC current through the output contact when it is closed. Each of the monitors contains a level detector whose output is set to logic “On = 1” when the current in the circuit is above the threshold setting. The voltage monitor is set to “On = 1” when there is a voltage across open contact (the detector allows a current of about 1 to 2.5 mA), and the current monitor is set to “On = 1” when the current flowing through the closed contact exceeds about 80 to 100 mA. The voltage monitor is intended to check the health of the overall trip circuit, and the current monitor can be used to seal-in

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WIRING CHAPTER 3: INSTALLATION

the output contact until an external contact has interrupted current flow. If enabled, the current monitoring can be used as a seal-in signal to ensure that the form-A contact does not attempt to break the energized inductive coil circuit and weld the output contacts.

Block diagrams are shown as follows for form-A and solid-state relay outputs with optional voltage monitor, optional current monitor, and with no monitoring. The actual values shown for contact output 1 are the same for all contact outputs. Form-A contact output with or without a current or voltage monitoring option is not polarity sensitive. The polarity shown in the figure is required for solid-state contact output connection.

Figure 3-15: Form-A and solid-state contact outputs with voltage and current monitoring

The operation of voltage and current monitors is reflected with the corresponding FlexLogic operands (CONT OP # VON, CONT

OP # VOFF, and CONT OP # ION) that can be used in protection, control, and alarm logic. The typical application of the voltage

monitor is breaker trip circuit integrity monitoring; a typical application of the current monitor is seal-in of the control command.

See the Digital Elements section of chapter 5 for an example of how form-A and solid-state relay contacts can be applied for breaker trip circuit integrity monitoring.

Consider relay contacts unsafe to touch when the unit is energized. Death or serious injury can result from touching live relay contacts.

USE OF FORM-A AND SOLID-STATE RELAY OUTPUTS IN HIGH-IMPEDANCE CIRCUITS For form-A and solid-state relay output contacts internally equipped with a voltage measuring circuit across the

contact, the circuit has an impedance that can cause a problem when used in conjunction with external high-input impedance monitoring equipment such as modern relay test set trigger circuits. These monitoring circuits can continue to read the form-A contact as being closed after it has closed and subsequently opened, when measured as an impedance.

The solution is to use the voltage measuring trigger input of the relay test set, and connect the form-A contact through a voltage-dropping resistor to a DC voltage source. If the 48 V DC output of the power supply is used as a source, a 500 Ω, 10 W resistor is appropriate. In this configuration, the voltage across either the form-A contact or the resistor can be used to monitor the state of the output.

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Where a tilde “~” symbol appears, substitute the slot position of the module. Where a number sign “#” appears, substitute the contact number.

When current monitoring is used to seal-in the form-A and solid-state relay contact outputs, give the FlexLogic operand driving the contact output a reset delay of 10 ms to prevent damage of the output contact (in situations when the element initiating the contact output is bouncing, at values in the region of the pickup value).

Table 3-3: Contact input and output module assignments

~6A module ~6B module ~6C module ~6D module Terminal

assignment

~1 Form-A ~1 Form-A ~1 Form-C ~1a, ~1c 2 Inputs ~2 Form-A ~2 Form-A ~2 Form-C ~2a, ~2c 2 Inputs ~3 Form-C ~3 Form-C ~3 Form-C ~3a, ~3c 2 Inputs ~4 Form-C ~4 Form-C ~4 Form-C ~4a, ~4c 2 Inputs ~5a, ~5c 2 Inputs ~5 Form-C ~5 Form-C ~5a, ~5c 2 Inputs ~6a, ~6c 2 Inputs ~6 Form-C ~6 Form-C ~6a, ~6c 2 Inputs ~7a, ~7c 2 Inputs ~7a, ~7c 2 Inputs ~7 Form-C ~7a, ~7c 2 Inputs ~8a, ~8c 2 Inputs ~8a, ~8c 2 Inputs ~8 Form-C ~8a, ~8c 2 Inputs

Output or input

Terminal assignment

Output or input

Terminal assignment

Output Terminal

assignment

Output

~6E module ~6F module ~6G module ~6H module Terminal

assignment ~1Form-C~1Fast Form-C~1 Form-A ~1 Form-A ~2Form-C~2Fast Form-C~2 Form-A ~2 Form-A ~3Form-C~3Fast Form-C~3 Form-A ~3 Form-A ~4Form-C~4Fast Form-C~4 Form-A ~4 Form-A ~5a, ~5c 2 Inputs ~5Fast Form-C~5a, ~6a, ~6c 2 Inputs ~6Fast Form-C~6a, ~6c 2 Inputs ~6 Form-A ~7a, ~7c 2 Inputs ~7Fast Form-C~7a, ~7c 2 Inputs ~7a, ~7c 2 Inputs ~8a, ~8c 2 Inputs ~8Fast Form-C~8a, ~8c 2 Inputs ~8a, ~8c 2 Inputs

~6K module ~6L module ~6M module ~6N module Terminal

assignment

~1 Form-C ~1Form-A ~1Form-A ~1Form-A ~2 Form-C ~2Form-A ~2Form-A ~2Form-A ~3 Form-C ~3Form-C ~3Form-C~3Form-A ~4 Form-C ~4Form-C ~4Form-C~4Form-A ~5 Fast Form-C ~5a, ~5c 2 Inputs ~5Form-C ~5a, ~5c 2 Inputs ~6 Fast Form-C ~6a, ~6c 2 Inputs ~6Form-C ~7 Fast Form-C ~7a, ~7c 2 Inputs ~7a, ~7c 2 Inputs ~7a, ~7c 2 Inputs ~8 Fast Form-C ~8a, ~8c 2 Inputs ~8a, ~8c 2 Inputs ~8a, ~8c 2 Inputs

Output or input

Output Terminal

Terminal assignment

assignment

Output Terminal

Output or input

assignment

~5c 2 Inputs ~5 Form-A

Terminal assignment

Output or input

Terminal assignment

~6a, ~6c 2 Inputs

Output or input

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~6P module ~6R module ~6S module ~6T module Terminal

assignment

~1 Form-A ~1Form-A ~1Form-A ~1Form-A ~2 Form-A ~2Form-A ~2Form-A ~2Form-A ~3 Form-A ~3Form-C ~3Form-C ~3Form-A ~4 Form-A ~4Form-C ~4Form-C ~4Form-A ~5 Form-A ~5a, ~5c 2 Inputs ~5Form-C~5a, ~5c 2 Inputs ~6 Form-A ~6a, ~6c 2 Inputs ~6Form-C~6a, ~6c 2 Inputs

~7a, ~7c 2 Inputs ~7a, ~7c 2 Inputs ~7a, ~7c 2 Inputs ~7a, ~7c 2 Inputs ~8a, ~8c 2 Inputs ~8a, ~8c 2 Inputs ~8a, ~8c 2 Inputs ~8a, ~8c 2 Inputs

~6U module ~6V module ~67 module ~4A module Terminal

assignment

~1 Form-A ~1 Form-A ~1Form-A ~1 Not Used ~2 Form-A ~2 Form-A ~2Form-A ~2 Solid-State ~3 Form-A ~3 Form-C ~3Form-A ~3 Not Used ~4 Form-A ~4 2 Outputs ~4Form-A~4 Solid-State ~5 Form-A ~5a, ~5c 2 Inputs ~5Form-A~5 Not Used ~6 Form-A ~6a, ~6c 2 Inputs ~6Form-A~6 Solid-State

~7a, ~7c 2 Inputs ~7a, ~7c 2 Inputs ~7Form-A ~7 Not Used ~8a, ~8c 2 Inputs ~8a, ~8c 2 Inputs ~8Form-A ~8 Solid-State

Output or input

Terminal assignment

Output or input

Terminal assignment

Output or input

Output Terminal

Terminal assignment

assignment

Output or input

Output

~4B module ~4C module ~4D module ~4L module Terminal

assignment ~1Not Used~1 Not Used ~1a, ~1c 2 Inputs ~1 2 Outputs ~2Solid-State~2 Solid-State ~2a, ~2c 2 Inputs ~2 2 Outputs ~3Not Used~3 Not Used ~3a, ~3c 2 Inputs ~3 2 Outputs ~4Solid-State~4 Solid-State ~4a, ~4c 2 Inputs ~4 2 Outputs ~

5Not Used~5 Not Used ~5a, ~5c 2 Inputs ~5 2 Outputs ~6Solid-State~6 Solid-State ~6a, ~6c 2 Inputs ~6 2 Outputs ~7Not Used~7 Not Used ~7a, ~7c 2 Inputs ~72 Outputs ~8Solid-State~8 Solid-State ~8a, ~8c 2 Inputs ~8 Not Used

Output Terminal

assignment

Output Terminal

assignment

Output Terminal

assignment

Output

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Figure 3-16: Contact input and output module wiring (Sheet 1 of 2)

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Figure 3-17: Contact input and output module wiring (Sheet 2 of 2)

For proper functionality, observe the polarity shown in the figures for all contact input and output connections.

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3.3.5.1 Contact inputs

A dry contact has one side connected to terminal B3b. This is the positive 48 V DC voltage rail supplied by the power supply module. The other side of the dry contact is connected to the required contact input terminal. Each contact input group has its own common (negative) terminal that must be connected to the DC negative terminal (B3a) of the power supply module. When a dry contact closes, a current of 1 to 3 mA flows through the associated circuit.

A wet contact has one side connected to the positive terminal of an external DC power supply. The other side of this contact is connected to the required contact input terminal. If a wet contact is used, then the negative side of the external source must be connected to the relay common (negative) terminal of each contact group. The maximum external source voltage for this arrangement is 300 V DC.

The voltage threshold at which each group of four contact inputs detects a closed contact input is programmable as 17 V DC for 24 V sources, 33 V DC for 48 V sources, 84 V DC for 110 to 125 V sources, and 166 V DC for 250 V sources.

Figure 3-18: Dry and wet contact input connections

Where a tilde “~” symbol appears, substitute the slot position of the module.

There is no provision in the relay to detect a DC ground fault on 48 V DC control power external output. We recommend using an external DC supply.

3.3.5.2 General application considerations

Contacts outputs of protective relays, auxiliary contacts from breakers, disconnectors and other devices, are generally connected to contacts inputs of protective relays. In some situations, the contact outputs of some protective relays can have high impedance connected across it. When such a contact output is connected across a B90 contact input, it can spuriously operate the B90 input even when the output is open, if there is a substantial distributed capacitance (represented by C1) present in the wiring between the output and the B90 input and the debounce time setting in the B90 relay is low enough. This false assertion of the contact input, when there is inadvertent ground present at the DC positive terminal, can be prevented by inserting a resistor across the B90 input.

The following figure shows a typical DC circuit, with battery ground detection, of contact input. The contact output has parallel impedance across it (represented by R1).

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Figure 3-19: Typical contact input DC circuit

The presence of the impedance path (R1) across the contact output allows the stray (distributed) capacitance C1 to charge as shown, thus developing a voltage across the contact input enough to momentarily operate the input while the capacitance discharges in the presence of DC ground on the positive terminal of the battery.

The duration of the discharge depends on the value of the distributed capacitance, the initial voltage of the distributed capacitance, and the input impedance of the contact input. If the duration is greater than the debounce time setting, then the contact input operates.

The application example that follows describes how to mitigate this problem by connecting a resistor across the contact input, as shown in the next figure, or by adjusting the debounce time setting to a value greater than the discharge time to prevent spurious operation of the contact input only if the voltage (with output open) across the contact input due to trickle current is less than the threshold voltage. This operation of contact inputs also can be prevented by using the Auto-Burnish contact inputs or contact inputs with active impedance.

Figure 3-20: Contact input connected to a contact output with resistor (R2) across the input

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Application example

This example is for illustrative purposes only and the calculations present the worst-case scenario. In practice, the value of debounce time can be lower.

Contact input ON state impedance used in the calculation of the discharge period is based on the following table.

Table 3-4: Discharge period

Battery voltage (V) Input impedance (kΩ)

130 50 250 97

Debounce time setting = 2 ms Assume a stray capacitance of 0.1 μF. Assume an initial voltage across the stray capacitance "Vinitial" = 19 V (Vthreshold - 65 V), where Vthreshold = 84 V. The

initial voltage Vinitial depends on values of impedance of R1 and contact inputs when the contact input is OFF (nonactivated state).

Therefore, discharge time constant (τ) =50 kΩ *0.1 μF = 5 ms. Discharge period t is calculated from the following equation:

Vthreshold = (Vbatt - VInitial) *e^ (-t/τ)

84 = -149 *e^ (t/0.005) Eq. 3-1

T = -0.005 * ln (84/149) = 0.0029 s

Therefore, in this example the contact inputs operate. To prevent this operation, the debounce time must be increased to 4 ms (set debounce time as per the following table) or

insert a resistor less than or equal to "R" as calculated later.

Table 3-5: Typical debounce time setting

Stray capacitance (μF) Battery voltage (V) Debounce time (ms)

0.05 130 2

0.1 130 4

0.2 130 6

0.05 250 3

0.1 250 6 *

0.2 250 11

* Default debounce time on contact inputs is 6 ms.

The value of this resistor "R" is calculated as follows:

1. Determine the minimum voltage (V threshold) required to turn on the input. This is determined by direct measurement or referenced in the input specifications.

2. Calculate the resistance necessary to limit the voltage to 1/3 V threshold (when the contact is OFF, the non-activated state) as follows:

R = (Vthreshold / 3) / (2 mA*) Eq. 3-2

The 2 mA current is used in case the contact input is connected across the GE Form A contact output with voltage monitoring. Otherwise use the amperage of the active circuit connected to the contact input when its contact output is open and the voltage across the contact input is third trigger threshold to calculate the resistor value.

3. When the contact is ON (operate state), the battery voltage appears across the resistor. The wattage rating of the resistor is then:

PR = 1.3 * (Vbatt) ^2 / R Watts Eq. 3-3

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4. Applying the following equation to our example:

R = 84 V / 3*(1 / 2 mA) = 14 kΩ

PR = 1.57 Watts Eq. 3-4

5. Calculating the voltage across the contact input with the Burden Resistor, Voltage across the contact Input:

Vresistor = 2 mA * 14 Kohm = 28 V

Vresistor < contact input threshold (84 V) Eq. 3-5

In conclusion, in this example, the contact input does NOT operate falsely with the Burden Resistor across its input AND when a battery ground is present.

3.3.5.3 Use of contact inputs with auto-burnishing

The contact inputs sense a change of the state of the external device contact based on the measured current. When external devices are located in a harsh industrial environment (either outdoor or indoor), their contacts can be exposed to various types of contamination. Normally, there is a thin film of insulating sulfidation, oxidation, or contaminates on the surface of the contacts, sometimes making it difficult or impossible to detect a change of the state. This film must be removed to establish circuit continuity — an impulse of higher than normal current can accomplish this.

The contact inputs with auto-burnish create a high current impulse when the threshold is reached to burn off this oxidation layer as a maintenance to the contacts. Afterwards the contact input current is reduced to a steady-state current. The impulse has a five-second delay after a contact input changes state.

Figure 3-21: Current through contact inputs with auto-burnishing

Regular contact inputs limit current to less than 3 mA to reduce station battery burden. In contrast, contact inputs with auto-burnishing allow currents up to 50 to 70 mA at the first instance when the change of state was sensed. Then, within 25 to 50 ms, this current is slowly reduced to 3 mA as indicated. The 50 to 70 mA peak current burns any film on the contacts, allowing for proper sensing of state changes. If the external device contact is bouncing, the auto-burnishing starts when external device contact bouncing is over.

Another important difference between the auto-burnishing input module and the regular input modules is that only two contact inputs have common ground, as opposed to four contact inputs sharing one common ground (see the Contact Input and Output Module Wiring diagrams). This is beneficial when connecting contact inputs to separate voltage sources. Consequently, the threshold voltage setting is also defined per group of two contact inputs.

The auto-burnish feature can be disabled or enabled using the DIP switches found on each daughter card. There is a DIP switch for each contact, for a total of 16 inputs.

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Figure 3-22: Auto-burnish DIP switches

The auto-burnish circuitry has an internal fuse for safety purposes. During regular maintenance, check the auto-burnish functionality using an oscilloscope.

3.3.5.4 Use of contact inputs with active impedance

Contact inputs susceptible to parasitic capacitance caused by long cable runs affected by switching surges from external circuits can result in inadvertent activation of contact inputs with the external contact open. In this case, GE recommends using the contact I/O module with active impedance circuit.

Active impedance contact input can tolerate external cable capacitance of up to 0.2 µF, without entering the ON state for more than 2 ms. The contact input debounce time can still be set above 2 ms for added security to prevent contact input activations cause by external transient ON states.

An active impedance contact input is normally in Low impedance mode during OFF contact state (non-activated condition). During Low impedance state contact input impedance is maintained at 10 K Ohms impedance to allow fast discharge of the stray capacitance of the long cables.

When the contact input voltage exceeds the set threshold, active impedance maintains 10 K Ohms impedance value. If voltage starts rapidly decreasing, this indicates that stray capacitance is being discharged through the contact input. If, however, voltage stabilizes above the set threshold, the input impedance is switched to High impedance mode of 100 K Ohms. This value reduces the input current to <3 mA, and contact input switched to the ON state (operated state).

The figure shows the active impedance contact input V-I characteristic. Different thresholds with their corresponding characteristics are shown by color. The contact input is in the ON (operated) state if the input voltage is to the right of the colored threshold band (+/-10% tolerance), and the contact input is in the OFF (non-activated) state when input voltage is to the left of the band. A contact input is in LOW state during non-operated system condition, and actively switches to HIGH state upon detection of input voltage above the settable threshold.

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Figure 3-23: Active impedance contact input V-I characteristic

3.3.6 RS232 port

A nine-pin RS232C serial port is located on the front panel for programming with a computer. All that is required to use this interface is a computer running the EnerVista UR Setup software provided with the relay. Cabling for the RS232 port is shown in the following figure for both 9-pin and 25-pin connectors.

The baud rate for this port can be set, with a default of 115200 bps.

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Figure 3-24: RS232 front panel port connection

3.3.7 CPU communication ports

3.3.7.1 Overview

In addition to the front panel RS232 port, there is a rear RS485 communication port. The CPU modules do not require a surge ground connection.

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Figure 3-25: CPU module communications wiring

3.3.7.2 RS485 port

RS485 data transmission and reception are accomplished over a single twisted-pair wire with transmit and receive data alternating over the same two wires. Through the use of the port, continuous monitoring and control from a remote computer, SCADA system, or Power Line Carrier (PLC) is possible.

To minimize errors from noise, the use of shielded twisted-pair wire is recommended. Correct polarity must be observed. For instance, the relays must be connected with all RS485 “+” terminals connected together, and all RS485 “–” terminals connected together. Though data is transmitted over a two-wire twisted pair, all RS485 devices require a shared reference, or common voltage. This common voltage is implied to be a power supply common. Some systems allow the shield (drain wire) to be used as common wire and to connect directly to the B90 COM terminal (#3); others function correctly only if the common wire is connected to the B90 COM terminal, but insulated from the shield.

To avoid loop currents, ground the shield at only one point. If other system considerations require the shield to be grounded at more than one point, install resistors (typically 100 ohms) between the shield and ground at each grounding point. Each relay needs to be daisy-chained to the next one in the link. A maximum of 32 relays can be connected in this

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manner without exceeding driver capability. For larger systems, additional serial channels must be added. It is also possible to use commercially available repeaters to have more than 32 relays on a single channel. Avoid star or stub connections entirely.

Lightning strikes and ground surge currents can cause large momentary voltage differences between remote ends of the communication link. For this reason, surge protection devices are provided internally at both communication ports. An isolated power supply with an optocoupled data interface also acts to reduce noise coupling. To ensure maximum reliability, ensure that all equipment has similar transient protection devices installed.

Terminate both ends of the RS485 circuit with an impedance as shown in the figure.

Figure 3-26: RS485 serial connection

3.3.7.3 100Base-FX fiber optic ports

The fiber optic communication ports allow for fast and efficient communications between relays at 100 Mbps. Optical fiber can be connected to the relay supporting a wavelength of 1310 nm in multimode.

Ensure that the dust covers are installed when the fiber is not in use. Dirty or scratched connectors can lead to high losses on a fiber link.

3.3.8 IRIG-B

IRIG-B is a standard time code format that allows stamping of events to be synchronized among connected devices. The IRIG-B code allows time accuracies of up to 100 ns. Using the IRIG-B input, the B90 operates an internal oscillator with 1 µs resolution and accuracy. The IRIG time code formats are serial, pulse width-modulated codes that can be either DC level shifted or amplitude modulated (AM). The GE MultiSync 100 1588 GPS Clock as well as third-party equipment are available for generating the IRIG-B signal; this equipment can use a global positioning system (GPS) satellite system to obtain the time reference so that devices at different geographic locations can be synchronized.

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Figure 3-27: Options for the IRIG-B connection

Using an amplitude-modulated receiver causes errors up to 1 ms in event time stamping.

3.4 Direct input and output communications

3.4.1 Description

The direct inputs and outputs feature makes use of the type 7 series of communications modules and allows direct messaging between UR devices. The communications modules are outlined in the table later in this section.

The communications channels are normally connected in a ring configuration, as shown in the following figure. The transmitter of one module is connected to the receiver of the next module. The transmitter of this second module is then connected to the receiver of the next module in the ring. This is continued to form a communications ring. The figure illustrates a ring of four UR-series relays with the following connections: UR1-Tx to UR2-Rx, UR2-Tx to UR3-Rx, UR3-Tx to UR4-Rx, and UR4-Tx to UR1-Rx. A maximum of 16 URs can be connected in a single ring.

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Figure 3-28: Direct input and output single-channel connection

IRC modules with protocol C37.94 and G.703 are designed for back-to-back communication connections, so the ring configuration shown in the previous figure does not apply. To establish inter-relay communication in more than two URs, you need to have two channel IRC module and enable DIRECT I/O CHANNEL CROSSOVER function in all relays, as shown in the next figure. This configuration can be expanded to 16 URs, and this configuration does not provide redundancy ring since both channels are made into single ring by the channel crossover function. As per the figure Typical Pin Interconnection between Two G.703 Interfaces later in this chapter, the clock is supplied typically by multiplexer (MUX) and all URs are in Loop Timing Mode. If there is no MUX, then UR1 and UR3 can be in Internal Timing Mode and UR2 and UR4 can be in Loop Timing Mode. That is, connected channels must have opposite timing modes.

Figure 3-29: Ring configuration for C37.94 module (concept also applies to G.703)

The interconnection for dual-channel type 7 communications modules is shown as follows. Two-channel modules allow for a redundant ring configuration. That is, two rings can be created to provide an additional independent data path. The required connections are: UR1-Tx1 to UR2-Rx1, UR2-Tx1 to UR3-Rx1, UR3-Tx1 to UR4-Rx1, and UR4-Tx1 to UR1-Rx1 for the first ring; and UR1-Tx2 to UR4-Rx2, UR4-Tx2 to UR3-Rx2, UR3-Tx2 to UR2-Rx2, and UR2-Tx2 to UR1-Rx2 for the second ring.

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Figure 3-30: Direct input and output dual-channel connection

The following diagram shows the connection for three UR-series relays using two independent communication channels. UR1 and UR3 have single type 7 communication modules; UR2 has a dual-channel module. The two communication channels can be of different types, depending on the type 7 modules used. To allow the direct input and output data to cross-over from channel 1 to channel 2 on UR2, set the forces UR2 to forward messages received on Rx1 out Tx2, and messages received on Rx2 out Tx1.

Figure 3-31: Direct input and output single/dual channel combination connection

The inter-relay communications modules are available with several interfaces and some are outlined here in more detail. Those that apply depend on options purchased. The options are outlined in the Inter-Relay Communications section of the Order Code tables in Chapter 2. All of the fiber modules use ST type connectors.

DIRECT I/O CHANNEL CROSSOVER setting to “Enabled” on UR2. This

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3.4.2 Fiber: LED and ELED transmitters

The following figure shows the configuration for the 7A, 7B, 7C, 7H, 7I, and 7J fiber-only modules.

Figure 3-32: LED and ELED fiber modules

3.4.3 Fiber laser transmitters

The following figure shows the configuration for the 72, 73, 7D, and 7K fiber-laser modules.

Figure 3-33: 7x Laser fiber modules

The following figure shows configuration for the 2I and 2J fiber-laser modules.

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Figure 3-34: 2I and 2J laser fiber modules

Observing any fiber transmitter output can injure the eye.

When using a laser Interface, attenuators can be necessary to ensure that you do not exceed the maximum optical input power to the receiver.

3.4.4 G.703 interface

3.4.4.1 Description

The following figure shows the 64K ITU G.703 co-directional interface configuration. The G.703 module is fixed at 64 kbps. The

applicable to this module. AWG 24 twisted shielded pair is recommended for external connections, with the shield grounded only at one end.

Connecting the shield to pin X1a or X6a grounds the shield since these pins are connected internally to ground. Thus, if pin X1a or X6a is used to ground the shield at one end, do not ground the shield at the other end. This interface module is protected by surge suppression devices.

SETTINGS  PRODUCT SETUP  DIRECT I/O  DIRECT I/O DATA RATE setting is not

Figure 3-35: G.703 interface configuration

The following figure shows the typical pin interconnection between two G.703 interfaces. For the actual physical arrangement of these pins, see the Rear Terminal Layout section earlier in this chapter. All pin interconnections are to be maintained for a connection to a multiplexer.

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Figure 3-36: Typical pin interconnection between two G.703 interfaces

Pin nomenclature differs from one manufacturer to another. It is not uncommon to see pinouts numbered TxA, TxB, RxA, and RxB. In such cases, assume that “A” is equivalent to “+” and “B” is equivalent to “–.”

3.4.4.2 G.703 selection switch procedures

1. With the power to the relay off, remove the G.703 module (7R or 7S) as follows. Record the original location of the module to help ensure that the same or replacement module is inserted into the correct slot.

2. Simultaneously pull the ejector/inserter clips located at the top and at the bottom of each module in order to release the module for removal. (For more information on accessing modules, see the Maintenance chapter.)

3. Remove the module cover screw.

4. Remove the top cover by sliding it towards the rear and then lift it upwards.

5. Set the timing selection switches (channels 1 and 2) to the required timing modes.

6. Replace the top cover and the cover screw.

7. Re-insert the G.703 module. Take care to ensure that the correct module type is inserted into the correct slot position. The ejector/inserter clips located at the top and bottom of each module must be in the disengaged position as the module is inserted smoothly into the slot. Once the clips have cleared the raised edge of the chassis, engage the clips simultaneously. When the clips have locked into position, the module is inserted fully.

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Figure 3-37: G.703 timing selection switch setting

Table 3-6: G.703 timing selections

Switches Function

S1 OFF → octet timing disabled

S5 and S6 S5 = OFF and S6 = OFF → loop timing mode

ON → octet timing 8 kHz

S5 = ON and S6 = OFF → internal timing mode S5 = OFF and S6 = ON → minimum remote loopback mode S5 = ON and S6 = ON → dual loopback mode

3.4.4.3 G.703 octet timing

If octet timing is enabled (ON), this 8 kHz signal is asserted during the violation of bit 8 (LSB) necessary for connecting to higher order systems. When B90s are connected back-to-back, octet timing is disabled (OFF).

3.4.4.4 G.703 timing modes

There are two timing modes for the G.703 module: internal timing mode and loop timing mode (default).

• Internal Timing Mode — The system clock is generated internally. Therefore, set the G.703 timing selection to internal

timing mode for back-to-back (UR-to-UR) connections. For back-to-back connections, set octet timing (S1 = OFF) and timing mode to internal timing (S5 = ON and S6 = OFF).

• Loop Timing Mode — The system clock is derived from the received line signal. Therefore, set the G.703 timing

selection to loop timing mode for connections to higher order systems. For connection to a higher order system (URto-multiplexer, factory defaults), set to octet timing (S1 = ON) and set timing mode to loop timing (S5 = OFF and S6 = OFF).

The switch settings for the internal and loop timing modes are shown.

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Figure 3-38: Switches

3.4.4.5 G.703 test modes

In minimum remote loopback mode, the multiplexer is enabled to return the data from the external interface without any processing to assist in diagnosing G.703 line-side problems irrespective of clock rate. Data enters from the G.703 inputs, passes through the data stabilization latch that also restores the proper signal polarity, passes through the multiplexer and then returns to the transmitter. The differential received data is processed and passed to the G.703 transmitter module after which point the data is discarded. The G.703 receiver module is fully functional and continues to process data and passes it to the differential Manchester transmitter module. Since timing is returned as it is received, the timing source is expected to be from the G.703 line side of the interface.

Figure 3-39: G.703 minimum remote loopback mode

In dual loopback mode, the multiplexers are active and the functions of the circuit are divided into two with each receiver/ transmitter pair linked together to deconstruct and then reconstruct their respective signals. Differential Manchester data enters the Differential Manchester receiver module and then is returned to the differential Manchester transmitter module. Likewise, G.703 data enters the G.703 receiver module and is passed through to the G.703 transmitter module to be returned as G.703 data. Because of the complete split in the communications path and because, in each case, the clocks are extracted and reconstructed with the outgoing data, in this mode there must be two independent sources of timing. One source lies on the G.703 line side of the interface while the other lies on the differential Manchester side of the interface.

Figure 3-40: G.703 dual loopback mode

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3.4.5 RS422 interface

3.4.5.1 Description

There are two RS422 inter-relay communications modules available: single-channel RS422 (module 7T) and dual-channel RS422 (module 7W). The modules can be configured to run at 64 kbps or 128 kbps. AWG 20-24 twisted shielded pair cable is recommended for external connections. These modules are protected by optically-isolated surge suppression devices.

The shield pins (6a and 7b) are connected internally to the ground pin (8a). Proper shield termination is as follows:

• Site 1 — Terminate shield to pins 6a or 7b or both

• Site 2 — Terminate shield to COM pin 2b Match the clock terminating impedance with the impedance of the line.

Figure 3-41: RS422 interface connections

The following figure shows the typical pin interconnection between two single-channel RS422 interfaces installed in slot W. All pin interconnections are to be maintained for a connection to a multiplexer.

Figure 3-42: Typical pin interconnect between two RS422 interfaces

3.4.5.2 Two-channel application via multiplexers

The RS422 interface can be used for single-channel or two-channel applications over SONET/SDH or multiplexed systems. When used in single-channel applications, the RS422 interface links to higher-order systems in a typical way, observing transmit (Tx), receive (Rx), and send timing (ST) connections. However, when used in two-channel applications, certain criteria must be followed since there is one clock input for the two RS422 channels. The system functions correctly when the following connections are observed and your data module has a terminal timing feature. Terminal timing is a common feature to most synchronous data units that allows the module to accept timing from an external source. Using the terminal timing feature, two-channel applications can be achieved if these connections are followed: the send timing outputs from the multiplexer (data module 1) connects to the clock inputs of the UR RS422 interface in the usual way. In

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addition, the send timing outputs of data module 1 are also paralleled to the terminal timing inputs of data module 2. By using this configuration, the timing for both data modules and both UR RS422 channels are derived from a single clock source. As a result, data sampling for both of the UR RS422 channels is synchronized via the send timing leads on data module 1, shown as follows. If the terminal timing feature is not available or this type of connection is not wanted, the G.703 interface is a viable option that does not impose timing restrictions.

Figure 3-43: Timing configuration for RS422 two-channel, three-terminal application

Data module 1 provides timing to the B90 RS422 interface via the ST(A) and ST(B) outputs. Data module 1 also provides timing to data module 2 TT(A) and TT(B) inputs via the ST(A) and AT(B) outputs. The data module pin numbers have been omitted in the figure because they vary by manufacturer.

3.4.5.3 Transmit timing

The RS422 interface accepts one clock input for transmit timing. It is important that the rising edge of the 64 kHz transmit timing clock of the multiplexer interface is sampling the data in the center of the transmit data window. Therefore, it is important to confirm clock and data transitions to ensure proper system operation. For example, the following figure shows the positive edge of the Tx clock in the center of the Tx data bit.

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Figure 3-44: Clock and data transitions

3.4.5.4 Receive timing

The RS422 interface utilizes NRZI-MARK modulation code and therefore does not rely on an Rx clock to recapture data. NRZI-MARK is an edge-type, invertible, self-clocking code.

To recover the Rx clock from the data-stream, an integrated digital phase lock loop (DPLL) circuit is utilized. The DPLL is driven by an internal clock, which is 16-times over-sampled, and uses this clock along with the data-stream to generate a data clock that can be used as the serial communication controller (SCC) receive clock.

3.4.6 RS422 and fiber interface

The following figure shows the combined RS422 plus fiberoptic interface configuration at 64 K baud. The 7L, 7M, 7N, 7P, and 74 modules are used in two-terminal with a redundant channel or three-terminal configurations where channel 1 is employed via the RS422 interface (possibly with a multiplexer) and channel 2 via direct fiber.

AWG 20-24 twisted shielded pair is recommended for external RS422 connections and ground the shield only at one end. For the direct fiber channel, address power budget issues properly.

When using a laser interface, attenuators can be necessary to ensure that you do not exceed maximum optical input power to the receiver.

Figure 3-45: RS422 and fiber interface connection

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The connections shown in the figure are for multiplexers configured as data communications equipment (DCE) units.

3.4.7 G.703 and fiber interface

The following figure shows the combined G.703 plus fiberoptic interface configuration at 64 kbps. The 7E, 7F, 7G, 7Q, and 75 modules are used in configurations where channel 1 is employed via the G.703 interface (possibly with a multiplexer) and channel 2 via direct fiber. AWG 24 twisted shielded pair is recommended for external G.703 connections connecting the shield to pin 1a at one end only. For the direct fiber channel, address power budget issues properly. See previous sections for details on the G.703 and fiber interfaces.

When using a laser interface, attenuators can be necessary to ensure that you do not exceed the maximum optical input power to the receiver.

Figure 3-46: G.703 and fiber interface connection

3.4.8 IEEE C37.94 interface

The UR-series IEEE C37.94 communication modules (module types 2G, 2H, 2I, 2J, 76, and 77) are designed to interface with IEEE C37.94 compliant digital multiplexers or an IEEE C37.94 compliant interface converter for use with direct input and output applications. The IEEE C37.94 standard defines a point-to-point optical link for synchronous data between a multiplexer and a teleprotection device. This data is typically 64 kbps, but the standard provides for speeds up to 64n kbps, where n = 1, 2,…, 12. The UR-series C37.94 communication modules are either 64 kbps (with n fixed at 1) for 128 kbps (with n fixed at 2). The frame is a valid International Telecommunications Union (ITU-T) recommended G.704 pattern from the standpoint of framing and data rate. The frame is 256 bits and is repeated at a frame rate of 8000 Hz, with a resultant bit rate of 2048 kbps.

The specifications for the module are as follows:

• IEEE standard — C37.94 for 1 × 128 kbps optical fiber interface (for 2G and 2H modules) or C37.94 for 2 × 64 kbps optical fiber interface (for 76 and 77 modules)

• Fiber optic cable type — 50 nm or 62.5 μm core diameter optical fiber

• Fiber optic mode — multimode

• Fiber optic cable length — up to 2 km

• Fiber optic connector — type ST

• Wavelength — 820 ±40 nm

• Connection — as per all fiber optic connections, a Tx to Rx connection is required

The UR-series C37.94 communication module can be connected directly to any compliant digital multiplexer that supports the IEEE C37.94 standard. The figure shows the concept.

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Figure 3-47: IEEE C37.94 connection to compliant digital multiplexer

The UR-series C37.94 communication module can be connected to the electrical interface (G.703, RS422, or X.21) of a noncompliant digital multiplexer via an optical-to-electrical interface converter that supports the IEEE C37.94 standard. The following figure shows the concept.

Figure 3-48: IEEE C37.94 connection to non-compliant digital multiplexer

In 2008, GE Grid Solutions released revised modules 76 and 77 for C37.94 communication to enable multi-ended fault location functionality with firmware 5.60 release and higher. All modules 76 and 77 shipped since the change support this feature and are fully backward compatible with firmware releases below 5.60. For customers using firmware release 5.60 and higher, the module can be identified with "Rev D" printed on the module and is to be used on all ends of B90 communication for two and three terminal applications. Failure to use it at all ends results in intermittent communication alarms. For customers using firmware revisions below 5.60, it is not required to match the revision of the modules installed.

The UR-series C37.94 communication module has six switches to set the clock configuration. The following figure shows the functions of these control switches.

Figure 3-49: Switches

For the internal timing mode, the system clock is generated internally. Therefore, set the timing switch selection to internal timing for relay 1 and loop timed for relay 2. There must be only one timing source configured.

For the looped timing mode, the system clock is derived from the received line signal. Therefore, set the timing selection to loop timing mode for connections to higher order systems.

The IEEE C37.94 communications module cover removal procedure is as follows:

1. With power to the relay off, remove the IEEE C37.94 module (type 2G, 2H, 2I, 2J, 76, or 77 module) as follows. Record the original location of the module to help ensure that the same or replacement module is inserted into the correct slot.

2. Simultaneously pull the ejector/inserter clips located at the top and bottom of each module in order to release the module for removal.

3. Remove the module cover screw.

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4. Remove the top cover by sliding it towards the rear and then lift it upwards.

5. Set the timing selection switches (channels 1 and 2) to the required timing modes (see description earlier).

6. Replace the top cover and the cover screw.

7. Re-insert the IEEE C37.94 module. Take care to ensure that the correct module type is inserted into the correct slot

position. The ejector/inserter clips located at the top and at the bottom of each module must be in the disengaged position as the module is inserted smoothly into the slot. Once the clips have cleared the raised edge of the chassis, engage the clips simultaneously. When the clips have locked into position, the module is inserted fully.

Figure 3-50: IEEE C37.94 timing selection switch setting

Modules shipped since January 2012 have status LEDs that indicate the status of the DIP switches, as shown in the following figure.

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Figure 3-51: Status LEDs

The clock configuration LED status is as follows:

• Flashing green — loop timing mode while receiving a valid data packet

• Flashing yellow — internal mode while receiving a valid data packet

• Solid red — (switch to) internal timing mode while not receiving a valid data packet

The link/activity LED status is as follows:

• Flashing green — FPGA is receiving a valid data packet

• Solid yellow — FPGA is receiving a "yellow bit" and remains yellow for each "yellow bit"

• Solid red — FPGA is not receiving a valid packet or the packet received is invalid

3.4.9 C37.94SM interface

The UR-series C37.94SM communication modules (2A and 2B) are designed to interface with modified IEEE C37.94 compliant digital multiplexers or IEEE C37.94 compliant interface converters that have been converted from 820 nm multimode fiber optics to 1300 nm ELED single-mode fiber optics. The IEEE C37.94 standard defines a point-to-point optical link for synchronous data between a multiplexer and a teleprotection device. This data is typically 64 kbps, but the standard provides for speeds up to 64n kbps, where n = 1, 2,…, 12. The UR-series C37.94SM communication module is 64 kbps only with n fixed at 1. The frame is a valid International Telecommunications Union (ITU-T) recommended G.704 pattern from the standpoint of framing and data rate. The frame is 256 bits and is repeated at a frame rate of 8000 Hz, with a resultant bit rate of 2048 kbps.

The specifications for the module are as follows:

• Emulated IEEE standard — Emulates C37.94 for 1 × 64 kbps optical fiber interface (modules set to n = 1 or 64 kbps)

• Fiber optic cable type — 9/125 μm core diameter optical fiber

• Fiber optic mode — Single-mode, ELED compatible with HP HFBR-1315T transmitter and HP HFBR-2316T receiver

• Fiber optic cable length — Up to 11.4 km

• Fiber optic connector — Type ST

• Wavelength — 1300 ±40 nm

• Connection — As per all fiber optic connections, a Tx to Rx connection is required

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The UR-series C37.94SM communication module can be connected directly to any compliant digital multiplexer that supports C37.94SM, as shown.

It also can be connected directly to any other UR-series relay with a C37.94SM module, as shown.

In 2008, GE Grid Solutions released revised modules 2A and 2B for C37.94SM communication to enable multi-ended fault location functionality with firmware 5.60 release and higher. All modules 2A and 2B shipped since the change support this feature and are fully backward compatible with firmware releases below 5.60. For customers using firmware release 5.60 and higher, the module can be identified with "Rev D" printed on the module and is to be used on all ends of B90 communication for two and three terminal applications. Failure to use it at all ends results in intermittent communication alarms. For customers using firmware revisions below 5.60, it is not required to match the revision of the modules installed.

The UR-series C37.94SM communication module has six switches that are used to set the clock configuration. The following figure shows the functions of these control switches.

Figure 3-52: Switches

For the looped timing mode, the system clock is derived from the received line signal. Therefore, set the timing selection to loop timing mode for connections to higher-order systems.

The C37.94SM communications module cover removal procedure is as follows:

1. With power to the relay off, remove the C37.94SM module (module 2A or 2B) as follows. Record the original location of

the module to help ensure that the same or replacement module is inserted into the correct slot.

2. Simultaneously pull the ejector/inserter clips located at the top and at the bottom of each module in order to release

the module for removal.

3. Remove the module cover screw.

4. Remove the top cover by sliding it towards the rear and then lift it upwards.

5. Set the timing selection switches (channels 1 and 2) to the required timing modes (see description earlier).

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6. Replace the top cover and the cover screw.

7. Re-insert the C37.94SM module. Take care to ensure that the correct module type is inserted into the correct slot position. The ejector/inserter clips located at the top and at the bottom of each module must be in the disengaged position as the module is inserted smoothly into the slot. Once the clips have cleared the raised edge of the chassis, engage the clips simultaneously. When the clips have locked into position, the module is inserted fully.

Figure 3-53: C37.94SM timing selection switch setting

Modules shipped since January 2012 have status LEDs that indicate the status of the DIP switches, as shown in the following figure.

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Figure 3-54: Status LEDs

The clock configuration LED status is as follows:

• Flashing green — loop timing mode while receiving a valid data packet

• Flashing yellow — internal mode while receiving a valid data packet

• Solid red — (switch to) internal timing mode while not receiving a valid data packet The link/activity LED status is as follows:

• Flashing green — FPGA is receiving a valid data packet

• Solid yellow — FPGA is receiving a "yellow bit" and remains yellow for each "yellow bit"

• Solid red — FPGA is not receiving a valid packet or the packet received is invalid

3.5 Activate relay

The relay is in the default “Not Programmed” state when it leaves the factory. When powered up successfully, the "Trouble" LED is on and the "In Service" LED is off. The relay in the “Not Programmed” state blocks signaling of any output relay. These conditions remain until the relay is explicitly put in the “Programmed” state.

RELAY SETTINGS: Not Programmed

The relay can be activated on the front panel or in the EnerVista software. To activate the relay using the front panel:

1. Press the

2. Press the

3. Press the

4. Press the

MENU key until the SETTINGS header flashes momentarily and the PRODUCT SETUP message displays. MESSAGE right arrow until the SECURITY message displays. MESSAGE down arrow until the INSTALLATION message displays. MESSAGE right arrow until the RELAY SETTINGS: Not Programmed message displays.

When the relay is powered up, the "Trouble LED" is on, the "In Service" LED is off, and this message displays, indicating that the relay is in the "Not Programmed" state and is safeguarding (output relays blocked) against the installation of a relay whose settings have not been entered. This message remains until the relay is explicitly put in the "Programmed" state.

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SETTINGS



 SETTINGS  PRODUCT SETUP





 SECURITY 

 DISPLAY  PROPERTIES



 INSTALLATION





5. After the RELAY SETTINGS: Not Programmed message displays, press a VALUE key to change the selection to "Programmed."

6. Press the

RELAY SETTINGS: Not Programmed

7. When the "NEW SETTING HAS BEEN STORED" message appears, the relay is in "Programmed" state and the "In Service" LED turns on.

To activate the relay using EnerVista software:

1. Navigate to Settings > Product Setup > Installation and change the Relay Settings field to "Programmed."

2. Save the change.

ENTER key to save the change.

RELAY SETTINGS: Programmed

RELAY SETTINGS:



Not Programmed

NEW SETTING HAS BEEN STORED

3.6 Install software

3.6.1 EnerVista communication overview

The EnerVista UR Setup software communicates to the relay via the front panel RS232 port or the rear panel RS485 / Ethernet ports.

To communicate via the RS232 port, use a standard straight-through serial cable. Connect the DB-9 male end to the relay and the DB-9 or DB-25 female end to the computer COM2 port as described in the CPU Communication Ports section earlier in this chapter.

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Figure 3-55: Relay communication options

To communicate through the B90 rear RS485 port from a computer RS232 port, the GE Grid Solutions RS232/RS485 converter box is required. This device (catalog number F485) connects to the computer using a straight-through serial cable. A shielded twisted-pair (20, 22, or 24 AWG) connects the F485 converter to the B90 rear communications port. The converter terminals (+, –, GND) are connected to the B90 communication module (+, –, COM) terminals. See the CPU Communication Ports section in chapter 3 for details. The line is terminated with an R-C network (that is, 120 Ω, 1 nF) as described in this chapter.

3.6.2 System requirements

The relay front panel or the EnerVista UR Setup software can be used to communicate with the relay. The software interface is the preferred method to edit settings and view actual values because the computer monitor can display more information.

The minimum system requirements for the EnerVista software are as follows:

• Intel Pentium processor (dual core)

• Microsoft Windows 7 with Service Pack 1 (32-bit or 64-bit) or Windows Server 2008 Release 2 with Service Pack 1 (64-

bit)

• 1 GB free hard drive space

•2 GB RAM

• 1280 x 800 display screen

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3.6.3 Install software

After ensuring that the requirements for using EnerVista UR Setup software are met, there are three ways to install the software:

•From the DVD

• Download EnerVista Launchpad software from http://www.gegridsolutions.com/multilin

• Download the EnerVista UR Setup software from http://www.gegridsolutions.com/multilin

To install the software from the DVD and using EnerVista Launchpad:

1. Insert the DVD into the DVD drive of your computer.

2. Click the Install Now button and follow the instructions.

3. When installation is complete, start the EnerVista Launchpad application.

4. Click the IED Setup section of the Launch Pad window.

Figure 3-56: Adding a UR device in Launchpad window

and install it

5. In the EnerVista Launch Pad window, click the Add Product button and select the appropriate product as follows. Select the Web option to ensure the most recent software release, or select CD if you do not have an Internet connection, then click the Add Now button to list software items for the product. EnerVista Launchpad obtains the software from the Internet or DVD and automatically starts the installation program.

Figure 3-57: Identifying the UR device type

6. Select the complete path, including the new directory name, where the EnerVista UR Setup software is to be installed.

7. Click the Next button to begin the installation. The files are installed in the directory indicated, and the installation program automatically creates icons and adds an entry to the Windows start menu.

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8. Click Finish to complete the installation. The UR device is added to the list of installed intelligent electronic devices

(IEDs) in the EnerVista Launchpad window, as shown.

Figure 3-58: UR device added to Launchpad window

3.7 Add device to software

You connect remotely to the B90 through the rear RS485 or Ethernet port with a computer running the EnerVista UR Setup software. The B90 also can be accessed locally with a computer through the front panel RS232 port or the rear Ethernet port using the Quick Connect feature.

The following procedures are outlined:

• Add device for serial access; see the Configure Serial Connection section

• Add device for the rear Ethernet port; see the Configure Ethernet Connection section

• Add device for access using a modem; see the Configure Modem Connection section

• Connect locally with a computer through either the front RS232 port or rear Ethernet port; see the Connect to the B90

section

• Discover automatically UR devices within a network; see the Automatic Discovery of UR Devices section Devices are listed in the order entered in the Device Setup window. Devices are listed alphabetically in the main software window, for example B30, B90, T35. Use the Device Name to order

them as required, for example B30 Odessa, B30 Truro, B90, T35. You cannot import a file to add a device to the software. You can import settings as outlined at the end of the chapter. The Quick Connect button can also be used to add devices. The device is added to a Quick Connect menu item in the

Online Window area, cannot be moved from it to another grouping, and needs to be renamed in the Device Setup window. GE instead recommends using the Device Setup window to add devices, as outlined here.

3.7.1 Set IP address in UR

The IP and subnet addresses need to be added to the UR for Ethernet communication. For serial communication, for example using the front RS232 port and the Quick Connect feature, the addresses are not

required, but typically they are entered to add/configure devices for regular use.

1. On the front of the B90, press the

2. Navigate to

3. Enter an IP address, for example “1.1.1.1,” and press the

4. In the same menu, select the

5. Enter a subnet IP address, for example “255.0.0.0,” and press the

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Settings  Product Setup  Communications  Network  IP Address Setting.

MENU key until the Settings menu displays.

ENTER key to save the value.

Subnet IP Mask setting.

ENTER key to save the value.

ADD DEVICE TO SOFTWARE CHAPTER 3: INSTALLATION

If using a blue or grey Ethernet cable, skip the rest of the this section. If using an orange cross-over Ethernet cable, the computer needs to be set up as follows.

1. Use an orange Ethernet cross-over cable to connect the computer to the rear Ethernet port. In case you need it, the following figure shows the pinout for an Ethernet cross-over cable.

Figure 3-59: Ethernet cross-over cable PIN layout

Next, assign the computer an IP address compatible with the relay’s IP address.

1. From the Windows desktop, right-click the My Network Places icon and select Properties to open the network connections window. Or in Windows 7, access the Network and Sharing Center in the Control Panel.

2. Right-click the Local Area Connection icon and select Properties.

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3. Select the Internet Protocol (TCP/IP) item from the list, and click the Properties button.

4. Click the “Use the following IP address” box.

5. Enter an IP address with the first three numbers the same as the IP address of the B90 relay and the last number

different (in this example, 1.1.1.2).

6. Enter a subnet mask equal to the one set in the B90 (in this example, 255.0.0.0).

7. Click the OK button to save the values.

Before continuing, test the Ethernet connection.

1. Open a Windows console window, for example by selecting Start > Run from the Windows Start menu and typing

“cmd” or clicking the Start button and entering "cmd".

2. Type the following command, substituting the IP address of 1.1.1.1 with yours:

C:\WINNT>ping 1.1.1.1

3. If the connection is successful, the system returns four replies similar to the following:

Pinging 1.1.1.1 with 32 bytes of data: Reply from 1.1.1.1: bytes=32 time<10ms TTL=255 Reply from 1.1.1.1: bytes=32 time<10ms TTL=255 Reply from 1.1.1.1: bytes=32 time<10ms TTL=255 Reply from 1.1.1.1: bytes=32 time<10ms TTL=255 Ping statistics for 1.1.1.1:

Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),

Approximate round trip time in milliseconds:

Minimum = 0ms, Maximum = 0ms, Average = 0 ms

4. Note that the values for time and TTL vary depending on local network configuration.

5. If the following sequence of messages appears when entering the

Pinging 1.1.1.1 with 32 bytes of data: Request timed out. Request timed out. Request timed out. Request timed out.

C:\WINNT>ping 1.1.1.1 command:

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Ping statistics for 1.1.1.1:

Packets: Sent = 4, Received = 0, Lost = 4 (100% loss),

Approximate round trip time in milliseconds:

Minimum = 0ms, Maximum = 0ms, Average = 0 ms

Pinging 1.1.1.1 with 32 bytes of data:

verify the physical connection between the B90 and the computer, and double-check the programmed IP address in

Product Setup  Communications  Network  IP Address setting, then repeat step 2.

the

6. If the following sequence of messages appears when entering the

Pinging 1.1.1.1 with 32 bytes of data: Hardware error. Hardware error. Hardware error. Hardware error. Ping statistics for 1.1.1.1:

Packets: Sent = 4, Received = 0, Lost = 4 (100% loss),

Approximate round trip time in milliseconds:

Minimum = 0ms, Maximum = 0ms, Average = 0 ms

Pinging 1.1.1.1 with 32 bytes of data:

C:\WINNT>ping 1.1.1.1 command:

verify the physical connection between the B90 and the computer, and double-check the programmed IP address in

PRODUCT SETUP  COMMUNICATIONS  NETWORK  IP ADDRESS setting, then repeat step 2.

the

7. If the following sequence of messages appears when entering the

Pinging 1.1.1.1 with 32 bytes of data: Destination host unreachable. Destination host unreachable. Destination host unreachable. Destination host unreachable. Ping statistics for 1.1.1.1:

Packets: Sent = 4, Received = 0, Lost = 4 (100% loss),

Approximate round trip time in milliseconds:

Minimum = 0ms, Maximum = 0ms, Average = 0 ms

Pinging 1.1.1.1 with 32 bytes of data:

C:\WINNT>ping 1.1.1.1 command:

verify the IP address is programmed in the local computer by entering the ipconfig command in the command window.

C:\WINNT>ipconfig Windows IP Configuration Ethernet adapter <F4FE223E-5EB6-4BFB-9E34-1BD7BE7F59FF>:

Connection-specific DNS suffix. . :

IP Address. . . . . . . . . . . . : 0.0.0.0

Subnet Mask . . . . . . . . . . . : 0.0.0.0

Default Gateway . . . . . . . . . :

Ethernet adapter Local Area Connection:

C:\WINNT>

Connection-specific DNS suffix . :

IP Address. . . . . . . . . . . . : 1.1.1.2

Subnet Mask . . . . . . . . . . . : 255.0.0.0

Default Gateway . . . . . . . . . :

Before using the Quick Connect feature through the Ethernet port, disable any configured proxy settings in Internet Explorer.

1. Start the Internet Explorer software.

2. Select the Tools > Internet Options menu item and click the Connections tab.

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3. Click on the LAN Settings button to open the following window.

4. Ensure that the “Use a proxy server for your LAN” box is not checked.

If this computer is used to connect to the Internet, re-enable any proxy server settings after the computer has been disconnected from the B90 relay.

1. Start the Internet Explorer software.

2. Select the UR device from the EnerVista Launchpad to start EnerVista UR Setup.

3. Click the Quick Connect button to open the window.

4. Select the Ethernet interface and enter the IP address assigned to the B90, then click the Connect button. The

EnerVista UR Setup software creates a site named “Quick Connect” with a corresponding device also named “Quick Connect” and displays them on the left side of the screen.

5. Expand the sections to view data directly from the B90 device. Each time that the EnerVista UR Setup software is initialized, click the Quick Connect button to establish direct

communications to the B90. This ensures that configuration of the EnerVista UR Setup software matches the B90 model number.

When direct communications with the B90 via Ethernet is complete, make the following changes:

1. From the Windows desktop, right-click the My Network Places icon and select Properties to open the network

connections window.

2. Right-click the Local Area Connection icon and select the Properties item.

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ADD DEVICE TO SOFTWARE CHAPTER 3: INSTALLATION

3. Select the Internet Protocol (TCP/IP) item from the list provided and click the Properties button.

4. Set the computer to “Obtain a relay address automatically” as shown.

If the computer is used to connect to the Internet, re-enable any proxy server settings after the computer has been disconnected from the B90 relay.

3.7.2 Configure serial connection

Two options are possible: local connection between computer and front RS232 port, and remote connection using the rear RS485 port.

For the RS232 connection, a computer with an RS232 port and a serial cable are required. To use the RS485 port at the back of the relay, a GE Grid Solutions F485 converter (or compatible RS232-to-RS485

converter) is required. See the F485 instruction manual for details.

1. Connect the computer to the F485 and the F485 to the RS485 terminal on the back of the UR device. Or connect directly the computer to the RS232 port on the front of the relay.

2. Start the EnerVista UR Setup software, or in EnerVista Launchpad select the UR device to start the software.

3. Click the Add Site button. A new category is added.

4. Enter a site name in the Site Name field. Optionally add a short Description of the site. This example uses “Location 1” as the site name. Click the OK button. The new site appears in the Online Window area.

5. Click the Device Setup button. The window opens.

6. Select the new site.

7. Click the Add Device button. A new device is added.

8. Enter a name in the Device Name field, up to 15 characters, and optionally add a Description of the site. The Color is for the text in the device list in the Online Window.

9. Select “Serial” from the Interface drop-down list. Interface parameters display that must be entered for serial communications. Try to load automatically the fields by clicking the Read Order Code button.

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Figure 3-60: Configuring serial communication

10. Enter the COM port used by the computer, the baud rate, and parity settings from the front panel

SETUP  COMMUNICATIONS  SERIAL PORTS  PRODUCT SETUP  COMMUNICATIONS  MODBUS PROTOCOL  MODBUS SLAVE ADDRESS

fields.

Baud Rate — Typically 19200 for RS232 and higher for RS485. Both modems need to use the same rate. Parity — Set to None if unsure Bits — Set to 8 if unsure Stop Bits — Set to 1 if unsure Post Terminal Window — Enable this option if you have a SEL-203x Communications Processor, such as an SEL-2030

or SEL-2032. This option enables display of a terminal window to allow interaction with the other device.

11. Click the Read Order Code button to connect to the B90 and upload the order code to the software. If a

communications error occurs, ensure that the EnerVista software serial communications values entered in the previous step correspond to the relay setting values, and also ensure that the same IP address is not assigned to multiple B90 ports.

12. Click the OK button when the relay order code has been received. The new device is added to the Online Window. The device has been configured for serial communications. Proceed to the Connect to the B90 section to begin

communication.

menu, and the relay slave address setting from the front panel SETTINGS

SETTINGS  PRODUCT

menu in their respective

3.7.3 Configure Ethernet connection

You connect the Ethernet cable, define a site, then add the relay as a device at that site. The computer and UR device must be on the same subnet.

1. Connect the Ethernet network cable to the Ethernet port on the back of the device.

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2. Start the EnerVista UR Setup software, or in EnerVista Launchpad select the UR device to start the software.

3. Click the Add Site button. A new category is added.

5. Click the Device Setup button. The window opens.

6. Select the new site.

7. Click the Add Device button. A new device is added.

8. Enter a name in the Device Name field, up to 15 characters, and optionally add a Description of the site. The Color is for the text in the device list in the Online Window.

9. Select “Ethernet” from the Interface drop-down list. This displays a number of interface parameters that must be entered for Ethernet functionality.

Figure 3-61: Configuring Ethernet communication

10. Enter the relay IP Address, which can be viewed on the device front panel under

COMMUNICATIONS  NETWORK  IP ADDRESS

information by clicking the Read Order Code button.

11. Enter the relay Slave address and Modbus Port address values from the settings in the front panel

PRODUCT SETUP  COMMUNICATIONS MODBUS PROTOCOL

12. If using a gateway to connect to the device, select Yes from the drop-down list.

13. Click the Read Order Code button to connect to the B90 device and upload the order code. If the device was entered

already, a message displays "Device ’x’ is also using IP address...." If a communications error occurs, ensure that the

values entered in the previous steps correspond to the relay setting values, and also ensure that the same IP address is not assigned to multiple B90 ports.

14. Click the OK button when the relay order code has been received. The device is added to the Online Window.

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. Once the IP address is entered, try to load automatically the device

menu.

SETTINGS  PRODUCT SETUP 

SETTINGS 

CHAPTER 3: INSTALLATION ADD DEVICE TO SOFTWARE

The device has been configured for Ethernet communications. Proceed to the Connect to the B90 section to begin communications.

3.7.4 Configure modem connection

A modem connection allows a computer to communicate with a UR device over phone lines. A remote modem is connected to the UR device, either by connecting the serial cable to the front panel port or through a

RS485 box to the rear terminals of the UR device. The computer is connected to a local modem that initiates the connection.

To add a UR device for modem connections:

1. Connect the modems to the computer and UR.

2. Start the EnerVista UR Setup software, or in EnerVista Launchpad select the UR device to start the software.

3. Click the Device Setup button. The window opens.

4. Click the Add Site button. A new category is added.

5. Enter a site name in the Site Name field, such as London East. Optionally add a short Description of the site, such as

the address or intersection. Click the OK button. The new site appears in the Online Window area.

6. Click the Device Setup button. The window opens.

7. Select the new site.

8. Click the Add Device button. A new device is added.

9. Enter a name in the Device Name field, up to 15 characters, and optionally add a Description of the site. The Color is

for the text in the device list in the Online Window.

10. Select “Modem” from the Interface drop-down list. This displays a number of interface parameters that must be

entered.

11. Select "Generic Modem" from the Modem Name drop-down list, then enter the Phone Number to dial to establish

communication with the remote modem. Post Terminal Window — Enable this option if you have a SEL-203x Communications Processor, such as an SEL-2030

or SEL-2032. It enables display of a terminal window to allow interaction with the other device.

12. Once the phone number is entered, try to load automatically the device information by clicking the Read Order Code

button.

13. Click the OK button when the relay order code has been received. The new device is added to the Online window. The UR device has been added to the software.

3.7.5 Automatic discovery of UR devices

The EnerVista UR Setup software can automatically discover and communicate to all UR-family devices located on an Ethernet network.

Using the Discover button in the Device Setup window, a single click of the mouse triggers the software to detect any URs located on the network. This is done by searching a range of IP addresses based on the subnet mask of the computer. When a UR device is detected, the EnerVista UR Setup software proceeds to configure all settings and order code options in the window. This feature allows the user to identify and interrogate all UR devices at a location.

Examples of address ranges are as follows:

• If the host has an IP address of 3.94.247.10 and its subnet mask is 255.255.252.0, then the host’s subnet is 3.94.244.0,

and the possible IP addresses in this subnet are 3.94.244.1~254, 3.94.245.1~254, 3.94.246.1~254 and 3.94.247.1~254. The discover function scans all those possible IP addresses to detect UR relays.

• If the host has an IP address of 3.94.247.145 and its subnet mask is 255.255.255.128, then the host’s subnet is

3.94.247.128, and the discover function scans IP addresses of 3.94.247.128 to 3.94.248.254 for UR relays

To automatically add UR devices:

1. In the EnerVista software, click the Device Setup button. The window opens.

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2. Click the Discover button. The software searches for UR devices on the computer subnet and adds any found to the Online Window area. If a required device is not found, add it manually as outlined earlier.

Figure 3-62: Discover button to detect UR devices in network

3.8 Connect to the B90

There are four ways to the connect to the device, as follows:

• RS232 port (outlined here)

• RS485 port

• Ethernet port (outlined here)

•LAN

When unable to connect because of an "ACCESS VIOLATION," access Device Setup and refresh the order code for the device.

When unable to connect, ensure that the same IP address is not assigned to multiple B90 ports, for example under Settings > Product Setup > Communications > Network.

When multiple computers are connected to a B90 device, EnerVista settings windows are not updated automatically. They are refreshed when re-opened. If a user changes a setting on one computer, the other users need to refresh the display by closing and opening the settings window to see the change. To ensure that current settings are always viewed, close settings windows when not in use so that they are up-to-date when next accessed.

3.8.1 Connect to the B90 in EnerVista

For information on using the EnerVista software, see the Interfaces chapter. To access the relay in EnerVista:

1. Open the Settings > Product Setup > Display Properties window as shown. The window opens with a status indicator on the lower left of the EnerVista UR Setup window.

3-60 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL

GE B90 Instruction Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Introduction

1.1 Safety symbols and definitions

1.1.1 General cautions and warnings

1.2 For further assistance

Product description

2.1 Product description

2.2 Security

2.2.0.1 EnerVista security

2.2.0.2 Password security

2.2.0.3 CyberSentry security

CyberSentry user roles

CyberSentry user authentication

2.3 Order codes

2.3.1 Replacement modules

2.4 Signal processing

2.4.1 UR signal processing

2.5 Specifications

2.5.1 Protection elements

2.5.2 User-programmable elements

2.5.3 Monitoring

2.5.4 Metering

2.5.5 Inputs

2.5.6 Power supply

2.5.7 Outputs

2.5.8 Communications

2.5.9 Inter-relay communications

2.5.10 CyberSentry security

2.5.11 Graphical front panel

2.5.12 Environmental

2.5.13 Type tests

2.5.14 Production tests

2.5.15 Approvals

2.5.16 Maintenance

Installation

3.1 Unpack and inspect

3.2 Panel cutouts

3.2.1 Rear terminal layout

3.3 Wiring

3.3.1 Typical wiring

3.3.2 Dielectric strength

3.3.3 Control power

3.3.4 CT and VT modules

3.3.5 Contact inputs and outputs

3.3.5.1 Contact inputs

3.3.5.2 General application considerations

Application example

3.3.5.3 Use of contact inputs with auto-burnishing

3.3.5.4 Use of contact inputs with active impedance

3.3.6 RS232 port

3.3.7 CPU communication ports

3.3.7.1 Overview

3.3.7.2 RS485 port

3.3.7.3 100Base-FX fiber optic ports

3.3.8 IRIG-B

3.4 Direct input and output communications

3.4.1 Description

3.4.2 Fiber: LED and ELED transmitters

3.4.3 Fiber laser transmitters

3.4.4 G.703 interface

3.4.4.1 Description

3.4.4.2 G.703 selection switch procedures

3.4.4.3 G.703 octet timing

3.4.4.4 G.703 timing modes

3.4.4.5 G.703 test modes

3.4.5 RS422 interface

3.4.5.1 Description

3.4.5.2 Two-channel application via multiplexers

3.4.5.3 Transmit timing

3.4.5.4 Receive timing

3.4.6 RS422 and fiber interface

3.4.7 G.703 and fiber interface

3.4.8 IEEE C37.94 interface

3.4.9 C37.94SM interface

3.5 Activate relay

3.6 Install software

3.6.1 EnerVista communication overview