GE B90 Instruction Manual

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

+ 480 hidden pages

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