GE B90 User manual

GE
Grid Solutions
Instruction Manual
Product version: 7.41x
GE publication code: 1601-0115-AE1 (GEK-130973)
B90
Low Impedance Bus Differential
System
1601-0115-AE1
LISTED
52TL
IND.CONT. EQ.
E83849
IISO 9001
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Copyright © 2017 GE Multilin Inc. All rights reserved.
B90 Low Impedance Bus Differential System Instruction Manual for version 7.41x.
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-AE1 (January 2017)

B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL iii
B90 Low Impedance Bus Differential System
Table of contents
1 INTRODUCTION 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
2.1.1 Overview................................................................................................................................... 2-1
2.2 Security.............................................................................................................. 2-4
2.3 Order codes ...................................................................................................... 2-7
2.3.1 Replacement modules.....................................................................................................2-12
2.4 Signal processing...........................................................................................2-14
2.4.1 UR signal processing ........................................................................................................2-14
2.5 Specifications .................................................................................................2-16
2.5.1 Protection elements..........................................................................................................2-16
2.5.2 User-programmable elements ....................................................................................2-17
2.5.3 Monitoring..............................................................................................................................2-19
2.5.4 Metering..................................................................................................................................2-19
2.5.5 Inputs .......................................................................................................................................2-19
2.5.6 Power supply........................................................................................................................2-21
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 Environmental......................................................................................................................2-25
2.5.12 Type tests...............................................................................................................................2-26
2.5.13 Production tests..................................................................................................................2-27
2.5.14 Approvals ...............................................................................................................................2-27
2.5.15 Maintenance.........................................................................................................................2-27
3 INSTALLATION 3.1 Unpack and inspect......................................................................................... 3-1
3.2 Panel cutouts.................................................................................................... 3-2
3.2.1 Rear terminal layout ........................................................................................................... 3-4
3.3 Wiring ................................................................................................................ 3-5
3.3.1 Typical wiring ......................................................................................................................... 3-5
3.3.2 Dielectric strength..............................................................................................................3-11

iv B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL
TABLE OF CONTENTS
3.3.3 Control power......................................................................................................................3-11
3.3.4 CT and VT modules............................................................................................................3-12
3.3.5 Contact inputs and outputs ..........................................................................................3-13
3.3.6 RS232 faceplate port........................................................................................................3-20
3.3.7 CPU communication ports ............................................................................................3-21
3.3.8 IRIG-B.......................................................................................................................................3-23
3.4 Direct input and output communications ................................................3-24
3.4.1 Description............................................................................................................................3-24
3.4.2 Fiber: LED and ELED transmitters...............................................................................3-27
3.4.3 Fiber laser transmitters...................................................................................................3-27
3.4.4 G.703 interface....................................................................................................................3-28
3.4.5 RS422 interface...................................................................................................................3-32
3.4.6 RS422 and fiber interface ..............................................................................................3-34
3.4.7 G.703 and fiber interface................................................................................................3-35
3.4.8 IEEE C37.94 interface .......................................................................................................3-35
3.4.9 C37.94SM interface...........................................................................................................3-38
3.5 Activate relay .................................................................................................3-41
3.6 Install software ..............................................................................................3-42
3.6.1 EnerVista communication overview ......................................................................... 3-42
3.6.2 System requirements....................................................................................................... 3-43
3.6.3 Install software....................................................................................................................3-44
3.7 Add device to software.................................................................................3-45
3.7.1 Set IP address in UR..........................................................................................................3-45
3.7.2 Configure serial connection..........................................................................................3-51
3.7.3 Configure Ethernet connection...................................................................................3-52
3.7.4 Configure modem connection.....................................................................................3-54
3.7.5 Automatic discovery of UR devices...........................................................................3-54
3.8 Connect to the B90........................................................................................3-55
3.8.1 Connect to the B90 in EnerVista .................................................................................3-55
3.8.2 Use Quick Connect via the front panel RS232 port............................................3-56
3.8.3 Use Quick Connect via a rear Ethernet port..........................................................3-57
3.9 Set up CyberSentry and change default password.................................3-57
3.10 Import settings...............................................................................................3-58
4 INTERFACES 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 ....................................................................................4-15
4.2.1 Front panel display............................................................................................................4-15
4.2.2 Front panel keypad...........................................................................................................4-16
4.2.3 Menu navigation ................................................................................................................4-16
4.2.4 Menu hierarchy...................................................................................................................4-16
4.2.5 Changing settings..............................................................................................................4-17
4.2.6 Faceplate ...............................................................................................................................4-19
4.2.7 LED indicators......................................................................................................................4-20
4.2.8 Custom LED labeling ........................................................................................................4-23
4.2.9 Change passwords ...........................................................................................................4-28

TABLE OF CONTENTS
B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL v
4.2.10 Invalid password entry ....................................................................................................4-29
4.3 Logic diagrams...............................................................................................4-29
4.4 FlexLogic design and monitoring using Engineer....................................4-31
4.4.1 Design logic...........................................................................................................................4-33
4.4.2 Send file to and from device .........................................................................................4-43
4.4.3 Monitor logic.........................................................................................................................4-44
4.4.4 View front panel and print labels................................................................................4-45
4.4.5 Generate connectivity report........................................................................................4-46
4.4.6 Preferences ...........................................................................................................................4-46
4.4.7 Toolbars ..................................................................................................................................4-50
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 Clear relay records.............................................................................................................5-24
5.3.5 Communications ................................................................................................................5-25
5.3.6 Modbus user map ..............................................................................................................5-86
5.3.7 Real-time clock....................................................................................................................5-86
5.3.8 User-programmable fault report................................................................................5-90
5.3.9 Oscillography........................................................................................................................5-91
5.3.10 User-programmable LEDs .............................................................................................5-93
5.3.11 User-programmable self-tests ....................................................................................5-96
5.3.12 Control pushbuttons.........................................................................................................5-97
5.3.13 User-programmable pushbuttons.............................................................................5-98
5.3.14 Flex state parameters...................................................................................................5-103
5.3.15 User-definable displays................................................................................................5-104
5.3.16 Direct inputs and outputs............................................................................................5-106
5.3.17 Installation..........................................................................................................................5-112
5.4 System setup................................................................................................5-113
5.4.1 AC inputs .............................................................................................................................5-113
5.4.2 Power system....................................................................................................................5-113
5.4.3 FlexCurves...........................................................................................................................5-114
5.4.4 Bus..........................................................................................................................................5-121
5.5 FlexLogic........................................................................................................5-123
5.5.1 FlexLogic operands ........................................................................................................5-123
5.5.2 FlexLogic rules ..................................................................................................................5-130
5.5.3 FlexLogic evaluation ...................................................................................................... 5-131
5.5.4 FlexLogic example ..........................................................................................................5-131
5.5.5 FlexLogic equation editor............................................................................................5-136
5.5.6 FlexLogic timers ...............................................................................................................5-136
5.5.7 Non-volatile latches .......................................................................................................5-136
5.6 Grouped elements.......................................................................................5-137
5.6.1 Overview..............................................................................................................................5-137
5.6.2 Setting group 1.................................................................................................................5-138
5.6.3 Bus differential..................................................................................................................5-138
5.6.4 Breaker failure (ANSI 50BF) .........................................................................................5-143
5.6.5 Voltage elements.............................................................................................................5-151
5.6.6 Current elements.............................................................................................................5-152
5.6.7 End fault protection........................................................................................................5-159
5.7 Control elements .........................................................................................5-162

vi B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL
TABLE OF CONTENTS
5.7.1 Overview ............................................................................................................................. 5-162
5.7.2 Trip bus ................................................................................................................................ 5-162
5.7.3 Setting groups .................................................................................................................. 5-164
5.7.4 Digital elements............................................................................................................... 5-165
5.7.5 Monitoring elements ..................................................................................................... 5-168
5.8 Inputs/outputs .............................................................................................5-173
5.8.1 Contact inputs.................................................................................................................. 5-173
5.8.2 Virtual inputs..................................................................................................................... 5-175
5.8.3 Contact outputs............................................................................................................... 5-176
5.8.4 Virtual outputs.................................................................................................................. 5-179
5.8.5 Resetting ............................................................................................................................. 5-179
5.8.6 Direct inputs and outputs ........................................................................................... 5-180
5.9 Testing ...........................................................................................................5-184
5.9.1 Test mode function ........................................................................................................ 5-184
5.9.2 Test mode forcing........................................................................................................... 5-184
5.9.3 Force contact inputs ..................................................................................................... 5-185
5.9.4 Force contact outputs .................................................................................................. 5-185
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 ................................................................................................................................6-5
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 .........................................................................................6-7
6.3.15 Parallel Redundancy Protocol (PRP) .............................................................................6-8
6.3.16 TxGOOSE status.....................................................................................................................6-8
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......................................................................................6-13
6.6.1 Model information .............................................................................................................6-13
6.6.2 Firmware revisions............................................................................................................6-14
7COMMANDSAND
TARGETS
7.1 Commands menu.............................................................................................7-1
7.1.1 Virtual inputs...........................................................................................................................7-2

TABLE OF CONTENTS
B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL vii
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 ..................................................................................................................................... 7-3
7.2 Targets menu ................................................................................................... 7-4
7.2.1 Target messages .................................................................................................................. 7-4
7.2.2 Relay self-tests ...................................................................................................................... 7-5
8 APPLICATION OF
SETTINGS
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
10.2 General maintenance ...................................................................................10-3
10.2.1 In-service maintenance ..................................................................................................10-3

viii B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL
TABLE OF CONTENTS
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 Compare settings ..........................................................................................10-5
10.4.1 Compare against defaults.............................................................................................10-5
10.4.2 Compare two devices ...................................................................................................... 10-5
10.5 Back up and restore settings.......................................................................10-6
10.5.1 Back up settings .................................................................................................................10-6
10.5.2 Restore settings..................................................................................................................10-8
10.6 Upgrade software........................................................................................10-10
10.7 Upgrade firmware .......................................................................................10-11
10.8 Replace module............................................................................................10-12
10.9 Battery...........................................................................................................10-14
10.9.1 Replace battery for SH/SL power supply............................................................. 10-14
10.9.2 Dispose of battery .......................................................................................................... 10-15
10.10 Clear files and data after uninstall...........................................................10-18
10.11 Repairs...........................................................................................................10-19
10.12 Storage ..........................................................................................................10-19
10.13 Disposal.........................................................................................................10-20
AFLEXANALOG
OPERANDS
A.1 FlexAnalog items .............................................................................................A-1
B RADIUS SERVER
CONFIGURATION
B.1 RADIUS server configuration .........................................................................B-1
C COMMAND LINE
INTERFACE
C.1 Command line interface .................................................................................C-1
D MISCELLANEOUS D.1 Warranty .......................................................................................................... D-1
D.2 Revision history ............................................................................................... D-1
ABBREVIATIONS
INDEX

B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 1-1
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.
1.1.1 General cautions and warnings
The following general safety precautions and warnings apply.
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 AC current, and voltage input match the ratings specified on
the relay nameplate. Do not apply current or voltage in excess of the specified limits.
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.
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.

1-2 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL
FOR FURTHER ASSISTANCE CHAPTER 1: INTRODUCTION
1
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.
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: [phone]
Europe/Middle East/Africa telephone: [phone]
North America toll-free: 1 800 547 8629
Fax: [phone]
Worldwide e-mail: multilin.t[email protected]
Europe e-mail: multilin.tech.[email protected]
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.
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.