GE B90 User manual

B90 revision: 6.0x
Manual P/N: 1601-0115-X3 (GEK-113612A)
GE Digital Energy
650 Markland Street
Markham, Ontario
Canada L6C 0M1
Tel: [phone] Fax: [phone]
Internet: http://www.GEDigitalEnergy.com
IISO 9001
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GE Multilin's Quality Management
System is registered to ISO
9001:2008
QMI # 005094
UL # A3775
*1601-0115-X3*
836771A2.CDR
B90 Low Impedance Bus
Differential System
UR Series Instruction Manual
GE
Digital Energy
LISTED
52TL
IND.CONT. EQ.
E83849

Copyright © 2015 GE Multilin Inc. All rights reserved.
B90 Low Impedance Bus Differential System UR Series Instruction Manual
revision 6.0x.
FlexLogic, FlexElement, FlexCurve, FlexAnalog, FlexInteger, FlexState, EnerVista,
HardFiber, Digital Energy, 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-X3 (August 2015)

GE Multilin B90 Low Impedance Bus Differential System iii
TABLE OF CONTENTS
1. GETTING STARTED 1.1 IMPORTANT PROCEDURES
1.1.1 CAUTIONS AND WARNINGS ........................................................................... 1-1
1.1.2 INSPECTION PROCEDURE ............................................................................. 1-2
1.2 UR OVERVIEW
1.2.1 INTRODUCTION TO THE UR ........................................................................... 1-3
1.2.2 HARDWARE ARCHITECTURE ......................................................................... 1-4
1.2.3 UR SOFTWARE ARCHITECTURE ................................................................... 1-5
1.2.4 IMPORTANT UR CONCEPTS........................................................................... 1-5
1.3 ENERVISTA UR SETUP SOFTWARE
1.3.1 REQUIREMENTS .............................................................................................. 1-6
1.3.2 SOFTWARE INSTALLATION ............................................................................ 1-6
1.3.3 CONFIGURING THE B90 FOR SOFTWARE ACCESS .................................... 1-7
1.3.4 USING THE QUICK CONNECT FEATURE..................................................... 1-10
1.3.5 CONNECTING TO THE B90 RELAY............................................................... 1-16
1.4 UR HARDWARE
1.4.1 MOUNTING AND WIRING............................................................................... 1-17
1.4.2 COMMUNICATIONS........................................................................................ 1-17
1.4.3 FACEPLATE DISPLAY .................................................................................... 1-17
1.5 USING THE RELAY
1.5.1 FACEPLATE KEYPAD..................................................................................... 1-18
1.5.2 MENU NAVIGATION ....................................................................................... 1-18
1.5.3 MENU HIERARCHY ........................................................................................ 1-18
1.5.4 RELAY ACTIVATION....................................................................................... 1-18
1.5.5 RELAY PASSWORDS ..................................................................................... 1-19
1.5.6 FLEXLOGIC™ CUSTOMIZATION................................................................... 1-19
1.5.7 COMMISSIONING ........................................................................................... 1-20
2. PRODUCT DESCRIPTION 2.1 INTRODUCTION
2.1.1 OVERVIEW........................................................................................................ 2-1
2.1.2 ORDERING........................................................................................................ 2-9
2.1.3 REPLACEMENT MODULES ........................................................................... 2-11
2.2 SPECIFICATIONS
2.2.1 PROTECTION ELEMENTS ............................................................................. 2-12
2.2.2 USER-PROGRAMMABLE ELEMENTS........................................................... 2-13
2.2.3 MONITORING.................................................................................................. 2-13
2.2.4 METERING ...................................................................................................... 2-14
2.2.5 INPUTS ............................................................................................................ 2-14
2.2.6 POWER SUPPLY ............................................................................................ 2-15
2.2.7 OUTPUTS ........................................................................................................ 2-15
2.2.8 COMMUNICATION PROTOCOLS .................................................................. 2-16
2.2.9 INTER-RELAY COMMUNICATIONS ............................................................... 2-17
2.2.10 ENVIRONMENTAL .......................................................................................... 2-17
2.2.11 TYPE TESTS ................................................................................................... 2-18
2.2.12 PRODUCTION TESTS .................................................................................... 2-18
2.2.13 APPROVALS ................................................................................................... 2-19
2.2.14 MAINTENANCE ............................................................................................... 2-19
3. HARDWARE 3.1 DESCRIPTION
3.1.1 PANEL CUTOUT ............................................................................................... 3-1
3.1.2 REAR TERMINAL LAYOUT............................................................................... 3-3
3.2 WIRING
3.2.1 TYPICAL WIRING.............................................................................................. 3-4
3.2.2 DIELECTRIC STRENGTH ............................................................................... 3-10
3.2.3 CONTROL POWER ......................................................................................... 3-10
3.2.4 CT AND VT MODULES ................................................................................... 3-11
3.2.5 CONTACT INPUTS AND OUTPUTS............................................................... 3-12
3.2.6 RS232 FACEPLATE PORT ............................................................................. 3-20
3.2.7 CPU COMMUNICATION PORTS .................................................................... 3-20

iv B90 Low Impedance Bus Differential System GE Multilin
TABLE OF CONTENTS
3.2.8 IRIG-B...............................................................................................................3-23
3.3 DIRECT INPUT/OUTPUT COMMUNICATIONS
3.3.1 DESCRIPTION .................................................................................................3-25
3.3.2 FIBER: LED AND ELED TRANSMITTERS ......................................................3-27
3.3.3 FIBER-LASER TRANSMITTERS .....................................................................3-27
3.3.4 G.703 INTERFACE...........................................................................................3-29
3.3.5 RS422 INTERFACE .........................................................................................3-32
3.3.6 RS422 AND FIBER INTERFACE .....................................................................3-34
3.3.7 G.703 AND FIBER INTERFACE ......................................................................3-34
3.3.8 IEEE C37.94 INTERFACE................................................................................3-35
3.3.9 C37.94SM INTERFACE ...................................................................................3-39
4. HUMAN INTERFACES 4.1 ENERVISTA UR SETUP SOFTWARE INTERFACE
4.1.1 INTRODUCTION ................................................................................................4-1
4.1.2 CREATING A SITE LIST ....................................................................................4-1
4.1.3 ENERVISTA UR SETUP OVERVIEW ................................................................4-1
4.1.4 ENERVISTA UR SETUP MAIN WINDOW..........................................................4-3
4.2 EXTENDED ENERVISTA UR SETUP FEATURES
4.2.1 SETTINGS TEMPLATES ...................................................................................4-5
4.2.2 SECURING AND LOCKING FLEXLOGIC™ EQUATIONS ................................4-9
4.2.3 SETTINGS FILE TRACEABILITY.....................................................................4-11
4.3 FACEPLATE INTERFACE
4.3.1 FACEPLATE .....................................................................................................4-14
4.3.2 LED INDICATORS............................................................................................4-15
4.3.3 CUSTOM LABELING OF LEDS .......................................................................4-18
4.3.4 DISPLAY...........................................................................................................4-22
4.3.5 KEYPAD ...........................................................................................................4-22
4.3.6 MENUS.............................................................................................................4-22
4.3.7 CHANGING SETTINGS ...................................................................................4-24
5. SETTINGS 5.1 OVERVIEW
5.1.1 SETTINGS MENU ..............................................................................................5-1
5.1.2 INTRODUCTION TO ELEMENTS......................................................................5-3
5.2 PRODUCT SETUP
5.2.1 B90 FUNCTION..................................................................................................5-5
5.2.2 SECURITY..........................................................................................................5-5
5.2.3 DISPLAY PROPERTIES ..................................................................................5-10
5.2.4 CLEAR RELAY RECORDS ..............................................................................5-11
5.2.5 COMMUNICATIONS ........................................................................................5-12
5.2.6 MODBUS USER MAP ......................................................................................5-33
5.2.7 REAL TIME CLOCK .........................................................................................5-33
5.2.8 USER-PROGRAMMABLE FAULT REPORT....................................................5-34
5.2.9 OSCILLOGRAPHY ...........................................................................................5-35
5.2.10 USER-PROGRAMMABLE LEDS .....................................................................5-37
5.2.11 USER-PROGRAMMABLE SELF TESTS .........................................................5-41
5.2.12 CONTROL PUSHBUTTONS ............................................................................5-41
5.2.13 USER-PROGRAMMABLE PUSHBUTTONS....................................................5-43
5.2.14 FLEX STATE PARAMETERS ..........................................................................5-49
5.2.15 USER-DEFINABLE DISPLAYS ........................................................................5-49
5.2.16 DIRECT INPUTS AND OUTPUTS....................................................................5-52
5.2.17 INSTALLATION ................................................................................................5-59
5.3 SYSTEM SETUP
5.3.1 AC INPUTS.......................................................................................................5-60
5.3.2 POWER SYSTEM ............................................................................................5-61
5.3.3 FLEXCURVES™ ..............................................................................................5-62
5.3.4 BUS ..................................................................................................................5-69
5.4 FLEXLOGIC™
5.4.1 INTRODUCTION TO FLEXLOGIC™................................................................5-71
5.4.2 FLEXLOGIC™ RULES .....................................................................................5-77

GE Multilin B90 Low Impedance Bus Differential System v
TABLE OF CONTENTS
5.4.3 FLEXLOGIC™ EVALUATION.......................................................................... 5-77
5.4.4 FLEXLOGIC™ EXAMPLE ............................................................................... 5-78
5.4.5 FLEXLOGIC™ EQUATION EDITOR ............................................................... 5-82
5.4.6 FLEXLOGIC™ TIMERS................................................................................... 5-82
5.4.7 NON-VOLATILE LATCHES ............................................................................. 5-83
5.5 GROUPED ELEMENTS
5.5.1 OVERVIEW...................................................................................................... 5-84
5.5.2 SETTING GROUP ........................................................................................... 5-84
5.5.3 BUS DIFFERENTIAL ....................................................................................... 5-85
5.5.4 BREAKER FAILURE........................................................................................ 5-89
5.5.5 VOLTAGE ELEMENTS.................................................................................... 5-97
5.5.6 CURRENT ELEMENTS ................................................................................... 5-98
5.5.7 END FAULT PROTECTION........................................................................... 5-105
5.6 CONTROL ELEMENTS
5.6.1 OVERVIEW.................................................................................................... 5-108
5.6.2 TRIP BUS....................................................................................................... 5-108
5.6.3 SETTING GROUPS ....................................................................................... 5-110
5.6.4 DIGITAL ELEMENTS..................................................................................... 5-111
5.6.5 MONITORING ELEMENTS ........................................................................... 5-114
5.7 INPUTS/OUTPUTS
5.7.1 CONTACT INPUTS........................................................................................ 5-118
5.7.2 VIRTUAL INPUTS.......................................................................................... 5-120
5.7.3 CONTACT OUTPUTS.................................................................................... 5-121
5.7.4 VIRTUAL OUTPUTS ...................................................................................... 5-123
5.7.5 REMOTE DEVICES ....................................................................................... 5-124
5.7.6 REMOTE INPUTS.......................................................................................... 5-125
5.7.7 REMOTE DOUBLE-POINT STATUS INPUTS .............................................. 5-126
5.7.8 REMOTE OUTPUTS...................................................................................... 5-126
5.7.9 RESETTING................................................................................................... 5-127
5.7.10 DIRECT INPUTS AND OUTPUTS................................................................. 5-128
5.7.11 IEC 61850 GOOSE ANALOGS...................................................................... 5-131
5.7.12 IEC 61850 GOOSE INTEGERS..................................................................... 5-132
5.8 TESTING
5.8.1 TEST MODE .................................................................................................. 5-133
5.8.2 FORCE CONTACT INPUTS .......................................................................... 5-134
5.8.3 FORCE CONTACT OUTPUTS ...................................................................... 5-135
6. ACTUAL VALUES 6.1 OVERVIEW
6.1.1 ACTUAL VALUES MENU .................................................................................. 6-1
6.2 STATUS
6.2.1 CONTACT INPUTS............................................................................................ 6-3
6.2.2 VIRTUAL INPUTS.............................................................................................. 6-3
6.2.3 REMOTE INPUTS.............................................................................................. 6-3
6.2.4 REMOTE DOUBLE-POINT STATUS INPUTS .................................................. 6-4
6.2.5 CONTACT OUTPUTS........................................................................................ 6-4
6.2.6 VIRTUAL OUTPUTS .......................................................................................... 6-4
6.2.7 REMOTE DEVICES ........................................................................................... 6-5
6.2.8 FLEX STATES ................................................................................................... 6-5
6.2.9 ETHERNET........................................................................................................ 6-6
6.2.10 IEC 61850 GOOSE INTEGERS......................................................................... 6-6
6.2.11 DIRECT INPUTS................................................................................................ 6-7
6.2.12 DIRECT DEVICES STATUS.............................................................................. 6-7
6.3 METERING
6.3.1 METERING CONVENTIONS ............................................................................. 6-8
6.3.2 BUS ZONE ......................................................................................................... 6-8
6.3.3 CURRENTS ....................................................................................................... 6-9
6.3.4 VOLTAGES........................................................................................................ 6-9
6.3.5 FREQUENCY..................................................................................................... 6-9
6.3.6 IEC 61580 GOOSE ANALOG VALUES........................................................... 6-10
6.4 RECORDS
6.4.1 USER-PROGRAMMABLE FAULT REPORTS ................................................ 6-11

vi B90 Low Impedance Bus Differential System GE Multilin
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6.4.2 EVENT RECORDS...........................................................................................6-11
6.4.3 OSCILLOGRAPHY ...........................................................................................6-11
6.5 PRODUCT INFORMATION
6.5.1 MODEL INFORMATION...................................................................................6-13
6.5.2 FIRMWARE REVISIONS..................................................................................6-13
7. COMMANDS AND
TARGETS
7.1 COMMANDS
7.1.1 COMMANDS MENU...........................................................................................7-1
7.1.2 VIRTUAL INPUTS ..............................................................................................7-1
7.1.3 CLEAR RECORDS.............................................................................................7-2
7.1.4 SET DATE AND TIME ........................................................................................7-2
7.1.5 RELAY MAINTENANCE.....................................................................................7-3
7.2 TARGETS
7.2.1 TARGETS MENU ...............................................................................................7-4
7.2.2 TARGET MESSAGES ........................................................................................7-4
7.2.3 RELAY SELF-TESTS .........................................................................................7-4
8. SECURITY 8.1 PASSWORD SECURITY
8.1.1 OVERVIEW ........................................................................................................8-1
8.1.2 PASSWORD SECURITY MENU ........................................................................8-2
8.1.3 LOCAL PASSWORDS........................................................................................8-2
8.1.4 REMOTE PASSWORDS ....................................................................................8-3
8.1.5 ACCESS SUPERVISION ...................................................................................8-4
8.1.6 DUAL PERMISSION SECURITY ACCESS........................................................8-4
8.2 ENERVISTA SECURITY MANAGEMENT SYSTEM
8.2.1 OVERVIEW ........................................................................................................8-6
8.2.2 ENABLING THE SECURITY MANAGEMENT SYSTEM....................................8-6
8.2.3 ADDING A NEW USER ......................................................................................8-6
8.2.4 MODIFYING USER PRIVILEGES ......................................................................8-7
9. THEORY OF OPERATION 9.1 INTRODUCTION
9.1.1 BUS DIFFERENTIAL PROTECTION .................................................................9-1
9.2 DYNAMIC BUS REPLICA
9.2.1 DYNAMIC BUS REPLICA MECHANISM............................................................9-2
9.2.2 CT RATIO MATCHING.......................................................................................9-2
9.3 DIFFERENTIAL PRINCIPLE
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
9.4.1 CURRENT DIRECTIONAL PROTECTION.........................................................9-6
9.5 SATURATION DETECTOR
9.5.1 CT SATURATION DETECTION .........................................................................9-8
9.6 OUTPUT LOGIC AND EXAMPLES
9.6.1 OUTPUT LOGIC...............................................................................................9-10
9.6.2 INTERNAL AND EXTERNAL FAULT EXAMPLE .............................................9-10
10. APPLICATION OF
SETTINGS
10.1 OVERVIEW
10.1.1 INTRODUCTION ..............................................................................................10-1
10.1.2 SAMPLE BUSBAR AND DATA ........................................................................10-1

GE Multilin B90 Low Impedance Bus Differential System vii
TABLE OF CONTENTS
10.2 ZONING AND DYNAMIC BUS REPLICA
10.2.1 NORTH BUS ZONE ......................................................................................... 10-3
10.2.2 SOUTH BUS ZONE ......................................................................................... 10-3
10.3 BIASED CHARACTERISTIC BREAKPOINTS
10.3.1 DESCRIPTION................................................................................................. 10-4
10.3.2 HIGH BREAKPOINT ........................................................................................ 10-4
10.3.3 LOW BREAKPOINT......................................................................................... 10-5
10.4 SLOPES AND HIGH SET THRESHOLD
10.4.1 DESCRIPTION................................................................................................. 10-6
10.4.2 EXTERNAL FAULTS ON C-1 .......................................................................... 10-6
10.4.3 EXTERNAL FAULTS ON C-2 .......................................................................... 10-8
10.4.4 EXTERNAL FAULTS ON C-3 .......................................................................... 10-8
10.4.5 EXTERNAL FAULTS ON C-4 .......................................................................... 10-9
10.4.6 EXTERNAL FAULTS ON C-5 .......................................................................... 10-9
10.5 BUS DIFFERENTIAL SETTINGS
10.5.1 DESCRIPTION............................................................................................... 10-10
10.6 ENHANCING RELAY PERFORMANCE
10.6.1 USING SETTING GROUPS........................................................................... 10-11
11. MAINTENANCE 11.1 MODULES
11.1.1 REPLACE A MODULE..................................................................................... 11-1
11.2 BATTERIES
11.2.1 REPLACE BATTERY....................................................................................... 11-3
11.2.2 DISPOSE OF BATTERY.................................................................................. 11-4
11.3 UNINSTALL AND CLEAR FILES AND DATA
11.3.1 UNINSTALL AND CLEAR FILES AND DATA.................................................. 11-7
11.4 REPAIRS
11.4.1 REPAIRS ......................................................................................................... 11-8
11.5 STORAGE
11.5.1 STORAGE........................................................................................................ 11-9
11.6 DISPOSAL
11.6.1 DISPOSAL ..................................................................................................... 11-10
A. FLEXANALOG AND
FLEXINTEGER
PARAMETERS
A.1 PARAMETER LISTS
A.1.1 FLEXANALOG ITEMS .......................................................................................A-1
A.1.2 FLEXINTEGER ITEMS ......................................................................................A-3
B. MODBUS
COMMUNICATIONS
B.1 MODBUS RTU PROTOCOL
B.1.1 INTRODUCTION................................................................................................B-1
B.1.2 PHYSICAL LAYER.............................................................................................B-1
B.1.3 DATA LINK LAYER............................................................................................B-1
B.1.4 MODBUS RTU CRC-16 ALGORITHM...............................................................B-2
B.2 MODBUS FUNCTION CODES
B.2.1 SUPPORTED FUNCTION CODES ...................................................................B-4
B.2.2 READ ACTUAL VALUES OR SETTINGS (FUNCTION CODE 03/04H) ...........B-4
B.2.3 EXECUTE OPERATION (FUNCTION CODE 05H) ...........................................B-5
B.2.4 STORE SINGLE SETTING (FUNCTION CODE 06H) .......................................B-5
B.2.5 STORE MULTIPLE SETTINGS (FUNCTION CODE 10H) ................................B-6
B.2.6 EXCEPTION RESPONSES ...............................................................................B-6
B.3 FILE TRANSFERS
B.3.1 OBTAINING RELAY FILES VIA MODBUS ........................................................B-7
B.4 MEMORY MAPPING

viii B90 Low Impedance Bus Differential System GE Multilin
TABLE OF CONTENTS
B.4.1 MODBUS MEMORY MAP ................................................................................. B-9
B.4.2 DATA FORMATS............................................................................................. B-53
C. IEC 61850
COMMUNICATIONS
C.1 OVERVIEW
C.1.1 INTRODUCTION ............................................................................................... C-1
C.1.2 COMMUNICATION PROFILES ......................................................................... C-1
C.1.3 FILE TRANSFER BY IEC 61850 ....................................................................... C-2
C.2 SERVER DATA ORGANIZATION
C.2.1 OVERVIEW ....................................................................................................... C-3
C.2.2 GGIO1: DIGITAL STATUS VALUES ................................................................. C-3
C.2.3 GGIO2: DIGITAL CONTROL VALUES.............................................................. C-3
C.2.4 GGIO3: DIGITAL STATUS AND ANALOG VALUES FROM RECEIVED GOOSE
DATAC-3
C.2.5 GGIO4: GENERIC ANALOG MEASURED VALUES......................................... C-3
C.2.6 MMXN: ANALOG MEASURED VALUES .......................................................... C-4
C.2.7 PROTECTION AND OTHER LOGICAL NODES...............................................C-4
C.3 SERVER FEATURES AND CONFIGURATION
C.3.1 BUFFERED AND UNBUFFERED REPORTING............................................... C-6
C.3.2 FILE TRANSFER ............................................................................................... C-6
C.3.3 TIMESTAMPS AND SCANNING ....................................................................... C-6
C.3.4 LOGICAL DEVICE NAME ................................................................................. C-6
C.3.5 LOCATION ........................................................................................................ C-6
C.3.6 LOGICAL NODE NAME PREFIXES.................................................................. C-7
C.3.7 CONNECTION TIMING ..................................................................................... C-7
C.3.8 NON-IEC 61850 DATA ...................................................................................... C-7
C.3.9 COMMUNICATION SOFTWARE UTILITIES..................................................... C-7
C.4 GENERIC SUBSTATION EVENT SERVICES: GSSE AND GOOSE
C.4.1 OVERVIEW ....................................................................................................... C-8
C.4.2 GSSE CONFIGURATION.................................................................................. C-8
C.4.3 FIXED GOOSE .................................................................................................. C-8
C.4.4 CONFIGURABLE GOOSE ................................................................................ C-8
C.4.5 ETHERNET MAC ADDRESS FOR GSSE/GOOSE ........................................C-10
C.4.6 GSSE ID AND GOOSE ID SETTINGS............................................................ C-11
C.5 IEC 61850 IMPLEMENTATION VIA ENERVISTA UR SETUP
C.5.1 OVERVIEW ..................................................................................................... C-12
C.5.2 CONFIGURING IEC 61850 SETTINGS .......................................................... C-13
C.5.3 ABOUT ICD FILES .......................................................................................... C-14
C.5.4 CREATING AN ICD FILE WITH ENERVISTA UR SETUP.............................. C-18
C.5.5 ABOUT SCD FILES......................................................................................... C-18
C.5.6 IMPORTING AN SCD FILE WITH ENERVISTA UR SETUP...........................C-21
C.6 ACSI CONFORMANCE
C.6.1 ACSI BASIC CONFORMANCE STATEMENT ................................................ C-23
C.6.2 ACSI MODELS CONFORMANCE STATEMENT............................................ C-23
C.6.3 ACSI SERVICES CONFORMANCE STATEMENT......................................... C-24
C.7 LOGICAL NODES
C.7.1 LOGICAL NODES TABLE ............................................................................... C-27
D. IEC 60870-5-104
COMMUNICATIONS
D.1 IEC 60870-5-104
D.1.1 INTEROPERABILITY DOCUMENT................................................................... D-1
D.1.2 IEC 60870-5-104 POINTS ................................................................................. D-9
E. DNP COMMUNICATIONS E.1 DEVICE PROFILE DOCUMENT
E.1.1 DNP V3.00 DEVICE PROFILE .......................................................................... E-1
E.1.2 IMPLEMENTATION TABLE .............................................................................. E-4
E.2 DNP POINT LISTS

GE Multilin B90 Low Impedance Bus Differential System ix
TABLE OF CONTENTS
E.2.1 BINARY INPUT POINTS....................................................................................E-8
E.2.2 BINARY AND CONTROL RELAY OUTPUT ......................................................E-9
E.2.3 ANALOG INPUTS ............................................................................................E-10
F. MISCELLANEOUS F.1 CHANGE NOTES
F.1.1 REVISION HISTORY ......................................................................................... F-1
F.1.2 CHANGES TO THE B90 MANUAL.................................................................... F-1
F.2 ABBREVIATIONS
F.2.1 STANDARD ABBREVIATIONS ......................................................................... F-5
F.3 WARRANTY
F.3.1 GE MULTILIN WARRANTY ............................................................................... F-7

x B90 Low Impedance Bus Differential System GE Multilin
TABLE OF CONTENTS

GE Multilin B90 Low Impedance Bus Differential System 1-1
1 GETTING STARTED 1.1 IMPORTANT PROCEDURES
1
1 GETTING STARTED 1.1IMPORTANT PROCEDURES
Please read this chapter to help guide you through the initial setup of your new B90 Low Impedance Bus Differential Sys-
tem.
1.1.1 CAUTIONS AND WARNINGS
Before attempting to install or use the device, review all safety indicators in this document to help prevent injury, equipment
damage, or downtime.
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.
a) 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 termi-
nals.
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.
Only qualified personnel are to operate the device. Such personnel must be thoroughly familiar with all safety cau-
tions 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 iso-
lated, 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.
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.
DANGER
WARNING
CAUTION
NOTICE
DANGER
CAUTION

1-2 B90 Low Impedance Bus Differential System GE Multilin
1.1 IMPORTANT PROCEDURES 1 GETTING STARTED
1
1.1.2 INSPECTION PROCEDURE
1. Open the relay packaging and inspect the unit for physical damage.
2. View the rear nameplate and verify that the correct model has been ordered.
Figure 1–1: REAR NAMEPLATE (EXAMPLE)
3. Ensure that the following items are included:
• Instruction manual (if ordered)
• GE EnerVista CD (includes the EnerVista UR Setup software and manuals in PDF format)
• Mounting screws
For product information, instruction manual updates, and the latest software updates, please visit the GE Digital Energy
website at http://www.gedigitalenergy.com.
If there is any noticeable physical damage, or any of the contents listed are missing, please contact GE Digital
Energy immediately.
GE DIGITAL ENERGY CONTACT INFORMATION AND CALL CENTER FOR PRODUCT SUPPORT:
GE Digital Energy
650 Markland Street
Markham, Ontario
Canada L6C 0M1
TELEPHONE: Worldwide [phone]
Europe/Middle East/Africa [phone]
North America toll-free 1 800 547 8629
FAX: [phone]
E-MAIL: Worldwide [email protected]
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HOME PAGE:http://www.gedigitalenergy.com/multilin
836782A3.CDR
®
®
Model:
Mods:
Wiring Diagram:
Inst. Manual:
Serial Number:
Firmware:
Mfg. Date:
PO Num:
Item Num:
B90D00HCHF8AH6AM6BP8BX7A
NONE
See manual
1601-0115
MAZB98000029
D
NOV 26, 2012
600001234.56
Control Power:
Contact Inputs:
Contact Outputs:
88-300V DC @ 35W / 77-265V AC @ 35VA
300 VDC Max 10mA
Refer to Instruction Manual
RATINGS:
B90
- M A A B 9 7 0 0 0 0 9 9 -
Bus Differential Relay
GE Multilin
LISTED
52TL
IND.CONT. EQ.
E83849
- M A A B 9 7 0 0 0 0 9 9 -
NOTE

GE Multilin B90 Low Impedance Bus Differential System 1-3
1 GETTING STARTED 1.2 UR OVERVIEW
1
1.2UR OVERVIEW 1.2.1 INTRODUCTION TO THE UR
Historically, substation protection, control, and metering functions were performed with electromechanical equipment. This
first generation of equipment was gradually replaced by analog electronic equipment, most of which emulated the single-
function approach of their electromechanical precursors. Both of these technologies required expensive cabling and auxil-
iary equipment to produce functioning systems.
Recently, digital electronic equipment has begun to provide protection, control, and metering functions. Initially, this equip-
ment was either single function or had very limited multi-function capability, and did not significantly reduce the cabling and
auxiliary equipment required. However, recent digital relays have become quite multi-functional, reducing cabling and aux-
iliaries significantly. These devices also transfer data to central control facilities and Human Machine Interfaces using elec-
tronic communications. The functions performed by these products have become so broad that many users now prefer the
term IED (Intelligent Electronic Device).
It is obvious to station designers that the amount of cabling and auxiliary equipment installed in stations can be even further
reduced, to 20% to 70% of the levels common in 1990, to achieve large cost reductions. This requires placing even more
functions within the IEDs.
Users of power equipment are also interested in reducing cost by improving power quality and personnel productivity, and
as always, in increasing system reliability and efficiency. These objectives are realized through software which is used to
perform functions at both the station and supervisory levels. The use of these systems is growing rapidly.
High speed communications are required to meet the data transfer rates required by modern automatic control and moni-
toring systems. In the near future, very high speed communications will be required to perform protection signaling with a
performance target response time for a command signal between two IEDs, from transmission to reception, of less than 3
milliseconds. This has been established by the IEC 61850 standard.
IEDs with the capabilities outlined above will also provide significantly more power system data than is presently available,
enhance operations and maintenance, and permit the use of adaptive system configuration for protection and control sys-
tems. This new generation of equipment must also be easily incorporated into automation systems, at both the station and
enterprise levels. The GE Multilin Universal Relay (UR) has been developed to meet these goals.

1-4 B90 Low Impedance Bus Differential System GE Multilin
1.2 UR OVERVIEW 1 GETTING STARTED
1
1.2.2 HARDWARE ARCHITECTURE
a) UR BASIC DESIGN
The UR is a digital-based device containing a central processing unit (CPU) that handles multiple types of input and output
signals. The UR can communicate over a local area network (LAN) with an operator interface, a programming device, or
another UR device.
Figure 1–2: UR CONCEPT BLOCK DIAGRAM
The CPU module contains firmware that provides protection elements in the form of logic algorithms, as well as program-
mable logic gates, timers, and latches for control features.
Input elements accept a variety of analog or digital signals from the field. The UR isolates and converts these signals into
logic signals used by the relay.
Output elements convert and isolate the logic signals generated by the relay into digital or analog signals that can be used
to control field devices.
b) UR SIGNAL TYPES
The contact inputs and outputs are digital signals associated with connections to hard-wired contacts. Both ‘wet’ and ‘dry’
contacts are supported.
The virtual inputs and outputs are digital signals associated with UR-series internal logic signals. Virtual inputs include
signals generated by the local user interface. The virtual outputs are outputs of FlexLogic™ equations used to customize
the device. Virtual outputs can also serve as virtual inputs to FlexLogic™ equations.
The analog inputs and outputs are signals that are associated with transducers, such as Resistance Temperature Detec-
tors (RTDs).
The CT and VT inputs refer to analog current transformer and voltage transformer signals used to monitor AC power lines.
The UR-series relays support 1 A and 5 A CTs.
The remote inputs and outputs provide a means of sharing digital point state information between remote UR-series
devices. The remote outputs interface to the remote inputs of other UR-series devices. Remote outputs are FlexLogic™
operands inserted into IEC 61850 GSSE and GOOSE messages.
The direct inputs and outputs provide a means of sharing digital point states between a number of UR-series IEDs over a
dedicated fiber (single or multimode), RS422, or G.703 interface. No switching equipment is required as the IEDs are con-
nected directly in a ring or redundant (dual) ring configuration. This feature is optimized for speed and intended for pilot-
aided schemes, distributed logic applications, or the extension of the input/output capabilities of a single relay chassis.
827822A3.CDR
Input elements
LAN
Programming
device
Operator
interface
Contact inputs Contact outputs
Virtual inputs Virtual outputs
Analog inputs Analog outputs
CT inputs
VT inputs
Input
status
table
Output
status
table
Pickup
Dropout
Operate
Protective elements
Logic Gates
Remote outputs
- IEC 61850
CPU module Output elements
Remote inputs
Direct inputs Direct outputs

GE Multilin B90 Low Impedance Bus Differential System 1-5
1 GETTING STARTED 1.2 UR OVERVIEW
1
c) UR SCAN OPERATION
The UR-series devices operate in a cyclic scan fashion. The device reads the inputs into an input status table, solves the
logic program (FlexLogic™ equation), and then sets each output to the appropriate state in an output status table. Any
resulting task execution is priority interrupt-driven.
Figure 1–3: UR-SERIES SCAN OPERATION
1.2.3 UR SOFTWARE ARCHITECTURE
The firmware (software embedded in the relay) is designed in functional modules which can be installed in any relay as
required. This is achieved with object-oriented design and programming (OOD/OOP) techniques.
Object-oriented techniques involve the use of objects and classes. An object is defined as “a logical entity that contains
both data and code that manipulates that data”. A class is the generalized form of similar objects. By using this concept,
one can create a protection class with the protection elements as objects of the class, such as time overcurrent, instanta-
neous overcurrent, current differential, undervoltage, overvoltage, underfrequency, and distance. These objects represent
completely self-contained software modules. The same object-class concept can be used for metering, input/output control,
hmi, communications, or any functional entity in the system.
Employing OOD/OOP in the software architecture of the B90 achieves the same features as the hardware architecture:
modularity, scalability, and flexibility. The application software for any UR-series device (for example, feeder protection,
transformer protection, distance protection) is constructed by combining objects from the various functionality classes. This
results in a common look and feel across the entire family of UR-series platform-based applications.
1.2.4 IMPORTANT UR CONCEPTS
As described above, the architecture of the UR-series relays differ from previous devices. To achieve a general understand-
ing of this device, some sections of Chapter 5 are quite helpful. The most important functions of the relay are contained in
“elements”. A description of the UR-series elements can be found in the Introduction to elements section in chapter 5.
Examples of simple elements, and some of the organization of this manual, can be found in the Control elements section of
chapter 5. A description of how digital signals are used and routed within the relay is contained in the Introduction to Flex-
Logic™ section in chapter 5.
827823A3.CDR
Pickup (PKP)
Dropout (DPO)
Operate (OP)
Protective elements
Protection elements
serviced by sub-scan
Read inputs
Solve logic
Set outputs

1-6 B90 Low Impedance Bus Differential System GE Multilin
1.3 ENERVISTA UR SETUP SOFTWARE 1 GETTING STARTED
1
1.3ENERVISTA UR SETUP SOFTWARE 1.3.1 REQUIREMENTS
The faceplate keypad and display or the EnerVista UR Setup software interface can be used to communicate with the relay.
The EnerVista UR Setup software interface is the preferred method to edit settings and view actual values because the PC
monitor can display more information in a simple comprehensible format.
The following minimum requirements must be met for the EnerVista UR Setup software to properly operate on a PC.
• Pentium class or higher processor (Pentium II 300 MHz or higher recommended)
• Windows 95, 98, 98SE, ME, NT 4.0 (Service Pack 4 or higher), 2000, XP
• Internet Explorer 4.0 or higher
• 128 MB of RAM (256 MB recommended)
• 200 MB of available space on system drive and 200 MB of available space on installation drive
• Video capable of displaying 800 x 600 or higher in high-color mode (16-bit color)
• RS232 and/or Ethernet port for communications to the relay
The following qualified modems have been tested to be compliant with the B90 and the EnerVista UR Setup software.
• US Robotics external 56K FaxModem 5686
• US Robotics external Sportster 56K X2
• PCTEL 2304WT V.92 MDC internal modem
1.3.2 SOFTWARE INSTALLATION
After ensuring the minimum requirements for using EnerVista UR Setup are met (see previous section), use the following
procedure to install the EnerVista UR Setup from the enclosed GE EnerVista CD.
1. Insert the GE EnerVista CD into your CD-ROM drive.
2. Click the Install Now button and follow the installation instructions to install the no-charge EnerVista software.
3. When installation is complete, start the EnerVista Launchpad application.
4. Click the IED Setup section of the Launch Pad window.
5. In the EnerVista Launch Pad window, click the Add Product button and select the “B90 Low Impedance Bus
Differential System” from the Install Software window as shown below. Select the “Web” option to ensure the most
recent software release, or select “CD” if you do not have a web connection, then click the Add Now button to list

GE Multilin B90 Low Impedance Bus Differential System 1-7
1 GETTING STARTED 1.3 ENERVISTA UR SETUP SOFTWARE
1
software items for the B90.
6. EnerVista Launchpad will obtain the software from the Web or CD and automatically start the installation program.
7. Select the complete path, including the new directory name, where the EnerVista UR Setup will be installed.
8. Click on Next to begin the installation. The files will be installed in the directory indicated and the installation program
will automatically create icons and add EnerVista UR Setup to the Windows start menu.
9. Click Finish to end the installation. The UR-series device will be added to the list of installed IEDs in the EnerVista
Launchpad window, as shown below.
1.3.3 CONFIGURING THE B90 FOR SOFTWARE ACCESS
a) OVERVIEW
The user can connect remotely to the B90 through the rear RS485 port or the rear Ethernet port with a PC running the
EnerVista UR Setup software. The B90 can also be accessed locally with a computer through the front panel RS232 port or
the rear Ethernet port using the Quick Connect feature.

1-8 B90 Low Impedance Bus Differential System GE Multilin
1.3 ENERVISTA UR SETUP SOFTWARE 1 GETTING STARTED
1
• To configure the B90 for remote access via the rear RS485 port(s), refer to the Configuring Serial Communications
section.
• To configure the B90 for remote access via the rear Ethernet port, refer to the Configuring Ethernet Communications
section. An Ethernet module must be specified at the time of ordering.
• To configure the B90 for local access with a computer through either the front RS232 port or rear Ethernet port, refer to
the Using the Quick Connect Feature section. An Ethernet module must be specified at the time of ordering for Ether-
net communications.
b) CONFIGURING SERIAL COMMUNICATIONS
Before starting, verify that the serial cable is properly connected to the RS485 terminals on the back of the device. The
faceplate RS232 port is intended for local use and is not described in this section; see the Using the Quick Connect Feature
section for details on configuring the RS232 port.
A computer with an RS232 port and a serial cable is required. To use the RS485 port at the back of the relay, a GE Multilin
F485 converter (or compatible RS232-to-RS485 converter) is required. See the F485 instruction manual for details.
1. Verify that the latest version of the EnerVista UR Setup software is installed (available from the GE EnerVista CD or
online from http://www.gedigitalenergy.com/multilin). See the Software Installation section for installation details.
2. Connect the computer to the F485 and the F485 to the RS485 terminal on the back of the UR device, or connect
directly the computer to the RS232 port on the front of the relay.
3. Select the “UR” device from the EnerVista Launchpad to start EnerVista UR Setup.
4. Click the Device Setup button to open the Device Setup window and click the Add Site button to define a new site.
5. Enter the desired site name in the “Site Name” field. If desired, a short description of site can also be entered along
with the display order of devices defined for the site. In this example, we will use “Location 1” as the site name. Click
the OK button when complete.
6. The new site will appear in the upper-left list in the EnerVista UR Setup window. Click the Device Setup button then
select the new site to re-open the Device Setup window.
7. Click the Add Device button to define the new device.
8. Enter the desired name in the “Device Name” field and a description (optional) of the site.

GE Multilin B90 Low Impedance Bus Differential System 1-9
1 GETTING STARTED 1.3 ENERVISTA UR SETUP SOFTWARE
1
9. Select “Serial” from the Interface drop-down list. This will display a number of interface parameters that must be
entered for proper serial communications.
Figure 1–4: CONFIGURING SERIAL COMMUNICATIONS
10. Enter the COM port used by the computer, the baud rate, and parity settings from the front panel SETTINGS PRODUCT
SETUP  COMMUNICATIONS SERIAL PORTS menu, and the relay slave address setting from the front panel SETTINGS
PRODUCT SETUP  COMMUNICATIONS  MODBUS PROTOCOL MODBUS SLAVE ADDRESS menu in their respective
fields.
11. Click the Read Order Code button to connect to the B90 device and upload the order code. If a communications error
occurs, ensure that the EnerVista UR Setup serial communications values entered in the previous step correspond to
the relay setting values.
12. Click “OK” when the relay order code has been received. The new device will be added to the Site List window (or
Online window) located in the top left corner of the main EnerVista UR Setup window.
The Site Device has now been configured for RS232 communications. Proceed to the Connecting to the B90 section to
begin communications.
c) CONFIGURING ETHERNET COMMUNICATIONS
Before starting, verify that the Ethernet network cable is properly connected to the Ethernet port on the back of the relay. To
set up the relay for Ethernet communications, you define a Site, then add the relay as a Device at that site.The computer
and UR device must be on the same subnet.
1. Verify that the latest version of the EnerVista UR Setup software is installed (available from the GE EnerVista CD or
online from http://www.gedigitalenergy.com/multilin). See the Software Installation section for installation details.
2. Select the “UR” device from the EnerVista Launchpad to start EnerVista UR Setup.
3. Click the Device Setup button to open the Device Setup window, then click the Add Site button to define a new site.
4. Enter the desired site name in the “Site Name” field. If desired, a short description of site can also be entered along
with the display order of devices defined for the site. In this example, we will use “Location 2” as the site name. Click
the OK button when complete.
5. The new site will appear in the upper-left list in the EnerVista UR Setup window. Click the Device Setup button then
select the new site to re-open the Device Setup window.
6. Click the Add Device button to define the new device.

1-10 B90 Low Impedance Bus Differential System GE Multilin
1.3 ENERVISTA UR SETUP SOFTWARE 1 GETTING STARTED
1
7. Enter the desired name in the “Device Name” field and a description (optional) of the site.
8. Select “Ethernet” from the Interface drop-down list. This will display a number of interface parameters that must be
entered for proper Ethernet functionality.
Figure 1–5: CONFIGURING ETHERNET COMMUNICATIONS
9. Enter the relay IP address specified in the front panel SETTINGS PRODUCT SETUP  COMMUNICATIONS 
NETWORK IP ADDRESS in the “IP Address” field.
10. Enter the relay slave address and Modbus port address values from the respective settings in the front panel SETTINGS
PRODUCT SETUP  COMMUNICATIONS  MODBUS PROTOCOL menu.
11. Click the Read Order Code button to connect to the B90 device and upload the order code. If an communications
error occurs, ensure that the three EnerVista UR Setup values entered in the previous steps correspond to the relay
setting values.
12. Click OK when the relay order code has been received. The new device will be added to the Site List window (or
Online window) located in the top left corner of the main EnerVista UR Setup window.
The Site Device has now been configured for Ethernet communications. Proceed to the Connecting to the B90 section to
begin communications.
1.3.4 USING THE QUICK CONNECT FEATURE
a) USING QUICK CONNECT VIA THE FRONT PANEL RS232 PORT
Before starting, verify that the serial cable is properly connected from the laptop computer to the front panel RS232 port
with a straight-through 9-pin to 9-pin RS232 cable.
1. Verify that the latest version of the EnerVista UR Setup software is installed (available from the GE EnerVista CD or
online from http://www.gedigitalenergy.com/multilin). See the Software Installation section for installation details.
2. Select the “UR” device from the EnerVista Launchpad to start EnerVista UR Setup.