GE N60 User manual

847710A1.CDR
N60 Revision: 7.1x
Manual P/N: 1601-0125-Z3 (GEK-119524B)
N60 Network Stability and
Synchrophasor Measurement System
UR Series Instruction Manual
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
*1601-0125-Z3*
GE
Digital Energy
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Copyright © 2015 GE Multilin Inc. All rights reserved.
N60 Network Stability and Synchrophasor Measurement System UR Series
Instruction Manual revision 7.1x.
FlexLogic, FlexElement, FlexCurve, FlexAnalog, FlexInteger, FlexState, EnerVista,
CyberSentry, 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: 1601-0125-Z3 (August 2015)

GE Multilin N60 Network Stability and Synchrophasor Measurement 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 ......................................................................... 1-3
1.2.3 SOFTWARE ARCHITECTURE.......................................................................... 1-5
1.2.4 IMPORTANT CONCEPTS ................................................................................. 1-5
1.3 ENERVISTA UR SETUP SOFTWARE
1.3.1 PC REQUIREMENTS ........................................................................................ 1-6
1.3.2 INSTALLATION.................................................................................................. 1-6
1.3.3 CONFIGURING THE N60 FOR SOFTWARE ACCESS .................................... 1-7
1.3.4 USING THE QUICK CONNECT FEATURE..................................................... 1-10
1.3.5 CONNECTING TO THE N60 RELAY .............................................................. 1-15
1.3.6 SETTING UP CYBERSENTRY AND CHANGING DEFAULT PASSWORD ... 1-16
1.4 UR HARDWARE
1.4.1 MOUNTING AND WIRING............................................................................... 1-18
1.4.2 COMMUNICATIONS........................................................................................ 1-18
1.4.3 FACEPLATE DISPLAY .................................................................................... 1-18
1.5 USING THE RELAY
1.5.1 FACEPLATE KEYPAD..................................................................................... 1-19
1.5.2 MENU NAVIGATION ....................................................................................... 1-19
1.5.3 MENU HIERARCHY ........................................................................................ 1-19
1.5.4 RELAY ACTIVATION....................................................................................... 1-19
1.5.5 RELAY PASSWORDS ..................................................................................... 1-20
1.5.6 FLEXLOGIC CUSTOMIZATION ...................................................................... 1-20
1.5.7 COMMISSIONING ........................................................................................... 1-21
2. PRODUCT DESCRIPTION 2.1 INTRODUCTION
2.1.1 OVERVIEW........................................................................................................ 2-1
2.1.2 SECURITY ......................................................................................................... 2-3
2.1.3 ORDERING........................................................................................................ 2-8
2.1.4 REPLACEMENT MODULES ........................................................................... 2-10
2.2 SPECIFICATIONS
2.2.1 PROTECTION ELEMENTS ............................................................................. 2-12
2.2.2 USER-PROGRAMMABLE ELEMENTS........................................................... 2-13
2.2.3 MONITORING.................................................................................................. 2-15
2.2.4 METERING ...................................................................................................... 2-15
2.2.5 INPUTS ............................................................................................................ 2-16
2.2.6 POWER SUPPLY ............................................................................................ 2-17
2.2.7 OUTPUTS ........................................................................................................ 2-17
2.2.8 COMMUNICATION PROTOCOLS .................................................................. 2-19
2.2.9 INTER-RELAY COMMUNICATIONS............................................................... 2-19
2.2.10 ENVIRONMENTAL .......................................................................................... 2-20
2.2.11 TYPE TESTS ................................................................................................... 2-21
2.2.12 PRODUCTION TESTS .................................................................................... 2-22
2.2.13 APPROVALS ................................................................................................... 2-22
2.2.14 MAINTENANCE ............................................................................................... 2-22
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 ................................................................................. 3-5
3.2.3 CONTROL POWER ........................................................................................... 3-5
3.2.4 CT AND VT MODULES ..................................................................................... 3-6
3.2.5 PROCESS BUS MODULES .............................................................................. 3-8

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3.2.6 CONTACT INPUTS AND OUTPUTS..................................................................3-8
3.2.7 TRANSDUCER INPUTS AND OUTPUTS........................................................3-16
3.2.8 RS232 FACEPLATE PORT..............................................................................3-17
3.2.9 CPU COMMUNICATION PORTS.....................................................................3-18
3.2.10 IRIG-B...............................................................................................................3-20
3.3 DIRECT INPUT AND OUTPUT COMMUNICATIONS
3.3.1 DESCRIPTION .................................................................................................3-21
3.3.2 FIBER: LED AND ELED TRANSMITTERS ......................................................3-23
3.3.3 FIBER-LASER TRANSMITTERS .....................................................................3-23
3.3.4 G.703 INTERFACE...........................................................................................3-24
3.3.5 RS422 INTERFACE .........................................................................................3-27
3.3.6 TWO-CHANNEL TWO-CLOCK RS422 INTERFACE.......................................3-29
3.3.7 RS422 AND FIBER INTERFACE .....................................................................3-29
3.3.8 IEEE C37.94 INTERFACE................................................................................3-30
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 ...................................................................................4-4
4.2.2 SECURING AND LOCKING FLEXLOGIC EQUATIONS....................................4-8
4.2.3 SETTINGS FILE TRACEABILITY.....................................................................4-10
4.3 FACEPLATE INTERFACE
4.3.1 FACEPLATE.....................................................................................................4-13
4.3.2 LED INDICATORS............................................................................................4-14
4.3.3 CUSTOM LABELING OF LEDS .......................................................................4-17
4.3.4 DISPLAY...........................................................................................................4-21
4.3.5 KEYPAD ...........................................................................................................4-21
4.3.6 BREAKER CONTROL ......................................................................................4-21
4.3.7 MENUS.............................................................................................................4-22
4.3.8 CHANGING SETTINGS ...................................................................................4-25
5. SETTINGS 5.1 OVERVIEW
5.1.1 SETTINGS MENU ..............................................................................................5-1
5.1.2 INTRODUCTION TO ELEMENTS......................................................................5-4
5.1.3 INTRODUCTION TO AC SOURCES..................................................................5-6
5.2 PRODUCT SETUP
5.2.1 SECURITY..........................................................................................................5-8
5.2.2 DISPLAY PROPERTIES ..................................................................................5-24
5.2.3 CLEAR RELAY RECORDS ..............................................................................5-26
5.2.4 COMMUNICATIONS ........................................................................................5-27
5.2.5 MODBUS USER MAP ......................................................................................5-57
5.2.6 REAL TIME CLOCK .........................................................................................5-58
5.2.7 OSCILLOGRAPHY ...........................................................................................5-62
5.2.8 DATA LOGGER................................................................................................5-65
5.2.9 DEMAND ..........................................................................................................5-66
5.2.10 USER-PROGRAMMABLE LEDS .....................................................................5-67
5.2.11 USER-PROGRAMMABLE SELF TESTS .........................................................5-71
5.2.12 CONTROL PUSHBUTTONS ............................................................................5-71
5.2.13 USER-PROGRAMMABLE PUSHBUTTONS....................................................5-73
5.2.14 FLEX STATE PARAMETERS ..........................................................................5-79
5.2.15 USER-DEFINABLE DISPLAYS ........................................................................5-79
5.2.16 DIRECT INPUTS/OUTPUTS ............................................................................5-82
5.2.17 TELEPROTECTION .........................................................................................5-89
5.2.18 INSTALLATION ................................................................................................5-90
5.3 REMOTE RESOURCES
5.3.1 REMOTE RESOURCES CONFIGURATION....................................................5-91

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5.4 SYSTEM SETUP
5.4.1 AC INPUTS ...................................................................................................... 5-92
5.4.2 POWER SYSTEM............................................................................................ 5-94
5.4.3 SIGNAL SOURCES ......................................................................................... 5-95
5.4.4 BREAKERS...................................................................................................... 5-98
5.4.5 DISCONNECT SWITCHES ........................................................................... 5-102
5.4.6 PHASOR MEASUREMENT UNIT.................................................................. 5-105
5.5 FLEXLOGIC
5.5.1 INTRODUCTION TO FLEXLOGIC ................................................................ 5-130
5.5.2 FLEXLOGIC RULES ...................................................................................... 5-139
5.5.3 FLEXLOGIC EVALUATION ........................................................................... 5-140
5.5.4 FLEXLOGIC EXAMPLE ................................................................................. 5-140
5.5.5 FLEXLOGIC EQUATION EDITOR................................................................. 5-145
5.5.6 FLEXLOGIC TIMERS .................................................................................... 5-145
5.5.7 FLEXELEMENTS........................................................................................... 5-146
5.5.8 NON-VOLATILE LATCHES ........................................................................... 5-150
5.5.9 FLEXMATH .................................................................................................... 5-151
5.6 GROUPED ELEMENTS
5.6.1 OVERVIEW.................................................................................................... 5-154
5.6.2 SETTING GROUP ......................................................................................... 5-154
5.6.3 POWER SWING DETECT............................................................................. 5-155
5.6.4 PHASE CURRENT ........................................................................................ 5-163
5.6.5 VOLTAGE ELEMENTS.................................................................................. 5-164
5.6.6 SUPERVISING ELEMENTS .......................................................................... 5-168
5.6.7 SENSITIVE DIRECTIONAL POWER............................................................. 5-170
5.7 CONTROL ELEMENTS
5.7.1 OVERVIEW.................................................................................................... 5-173
5.7.2 TRIP BUS....................................................................................................... 5-173
5.7.3 SETTING GROUPS ....................................................................................... 5-175
5.7.4 SELECTOR SWITCH..................................................................................... 5-177
5.7.5 UNDERFREQUENCY.................................................................................... 5-183
5.7.6 OVERFREQUENCY ...................................................................................... 5-184
5.7.7 SYNCHROCHECK......................................................................................... 5-185
5.7.8 DIGITAL ELEMENTS..................................................................................... 5-189
5.7.9 DIGITAL COUNTERS .................................................................................... 5-192
5.7.10 MONITORING ELEMENTS ........................................................................... 5-194
5.7.11 FREQUENCY RATE OF CHANGE................................................................ 5-199
5.7.12 DIGITIZERS ................................................................................................... 5-201
5.7.13 8-BIT COMPARATORS ................................................................................. 5-204
5.7.14 8-BIT SWITCHES .......................................................................................... 5-210
5.8 INPUTS AND OUTPUTS
5.8.1 CONTACT INPUTS........................................................................................ 5-212
5.8.2 VIRTUAL INPUTS.......................................................................................... 5-214
5.8.3 CONTACT OUTPUTS.................................................................................... 5-215
5.8.4 VIRTUAL OUTPUTS...................................................................................... 5-217
5.8.5 REMOTE DEVICES ....................................................................................... 5-218
5.8.6 REMOTE INPUTS.......................................................................................... 5-219
5.8.7 REMOTE DOUBLE-POINT STATUS INPUTS .............................................. 5-220
5.8.8 REMOTE OUTPUTS...................................................................................... 5-220
5.8.9 RESETTING................................................................................................... 5-221
5.8.10 DIRECT INPUTS AND OUTPUTS................................................................. 5-222
5.8.11 DIRECT ANALOG INPUTS AND OUTPUTS................................................. 5-225
5.8.12 DIRECT INTEGER INPUTS AND OUTPUTS................................................ 5-227
5.8.13 TELEPROTECTION INPUTS/OUTPUTS ...................................................... 5-229
5.8.14 IEC 61850 GOOSE ANALOGS...................................................................... 5-231
5.8.15 IEC 61850 GOOSE INTEGERS..................................................................... 5-232
5.9 TRANSDUCER INPUTS AND OUTPUTS
5.9.1 DCMA INPUTS .............................................................................................. 5-233
5.9.2 RTD INPUTS.................................................................................................. 5-234
5.9.3 DCMA OUTPUTS .......................................................................................... 5-236
5.10 TESTING
5.10.1 TEST MODE .................................................................................................. 5-239
5.10.2 FORCE CONTACT INPUTS .......................................................................... 5-240
5.10.3 FORCE CONTACT OUTPUTS ...................................................................... 5-241

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5.10.4 PHASOR MEASUREMENT UNIT TEST VALUES.........................................5-242
6. ACTUAL VALUES 6.1 OVERVIEW
6.1.1 ACTUAL VALUES MENU...................................................................................6-1
6.2 STATUS
6.2.1 CONTACT INPUTS ............................................................................................6-4
6.2.2 VIRTUAL INPUTS ..............................................................................................6-4
6.2.3 REMOTE INPUTS ..............................................................................................6-4
6.2.4 REMOTE DOUBLE-POINT STATUS INPUTS ...................................................6-5
6.2.5 TELEPROTECTION INPUTS .............................................................................6-5
6.2.6 CONTACT OUTPUTS ........................................................................................6-5
6.2.7 VIRTUAL OUTPUTS ..........................................................................................6-6
6.2.8 REMOTE DEVICES............................................................................................6-6
6.2.9 DIGITAL COUNTERS.........................................................................................6-7
6.2.10 SELECTOR SWITCHES ....................................................................................6-7
6.2.11 FLEX STATES....................................................................................................6-7
6.2.12 ETHERNET ........................................................................................................6-7
6.2.13 REAL TIME CLOCK SYNCHRONIZING ............................................................6-8
6.2.14 DIRECT INPUTS ................................................................................................6-9
6.2.15 DIRECT DEVICES STATUS ..............................................................................6-9
6.2.16 IEC 61850 GOOSE INTEGERS .......................................................................6-10
6.2.17 DIRECT INTEGER INPUTS .............................................................................6-10
6.2.18 TELEPROTECTION CHANNEL TESTS...........................................................6-10
6.2.19 REMAINING CONNECTION STATUS .............................................................6-11
6.2.20 PARALLEL REDUNDANCY PROTOCOL (PRP) .............................................6-11
6.3 METERING
6.3.1 METERING CONVENTIONS ...........................................................................6-13
6.3.2 SOURCES ........................................................................................................6-16
6.3.3 SENSITIVE DIRECTIONAL POWER ...............................................................6-21
6.3.4 SYNCHROCHECK ...........................................................................................6-21
6.3.5 TRACKING FREQUENCY................................................................................6-21
6.3.6 FLEXELEMENTS™..........................................................................................6-21
6.3.7 DIGITIZERS......................................................................................................6-22
6.3.8 EIGHT-BIT COMPARATORS...........................................................................6-22
6.3.9 SUMMATOR.....................................................................................................6-22
6.3.10 DIRECT ANALOGS ..........................................................................................6-23
6.3.11 IEC 61580 GOOSE ANALOG VALUES ...........................................................6-23
6.3.12 PHASOR MEASUREMENT UNIT ....................................................................6-23
6.3.13 PMU AGGREGATOR .......................................................................................6-24
6.3.14 TRANSDUCER INPUTS AND OUTPUTS........................................................6-24
6.4 RECORDS
6.4.1 EVENT RECORDS...........................................................................................6-26
6.4.2 OSCILLOGRAPHY ...........................................................................................6-26
6.4.3 DATA LOGGER................................................................................................6-26
6.4.4 PHASOR MEASUREMENT UNIT RECORDS .................................................6-27
6.4.5 BREAKER MAINTENANCE .............................................................................6-28
6.5 PRODUCT INFORMATION
6.5.1 MODEL INFORMATION...................................................................................6-29
6.5.2 FIRMWARE REVISIONS..................................................................................6-29
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
7.1.6 PHASOR MEASUREMENT UNIT ONE-SHOT ..................................................7-4
7.1.7 SECURITY..........................................................................................................7-5

GE Multilin N60 Network Stability and Synchrophasor Measurement System vii
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7.2 TARGETS
7.2.1 TARGETS MENU............................................................................................... 7-6
7.2.2 TARGET MESSAGES ....................................................................................... 7-6
7.2.3 RELAY SELF-TESTS......................................................................................... 7-6
8. COMMISSIONING 8.1 TESTING
8.1.1 TESTING UNDERFREQUENCY AND OVERFREQUENCY ELEMENTS......... 8-1
9. MAINTENANCE 9.1 MODULES
9.1.1 REPLACE A MODULE....................................................................................... 9-1
9.2 BATTERIES
9.2.1 REPLACE BATTERY......................................................................................... 9-3
9.2.2 DISPOSE OF BATTERY.................................................................................... 9-4
9.3 UNINSTALL AND CLEAR FILES AND DATA
9.3.1 UNINSTALL AND CLEAR FILES AND DATA.................................................... 9-7
9.4 REPAIRS
9.4.1 REPAIRS ........................................................................................................... 9-8
9.5 STORAGE
9.5.1 STORAGE.......................................................................................................... 9-9
9.6 DISPOSAL
9.6.1 DISPOSAL ....................................................................................................... 9-10
A. FLEXANALOG AND
FLEXINTEGER
PARAMETERS
A.1 PARAMETER LISTS
A.1.1 FLEXANALOG ITEMS .......................................................................................A-1
A.1.2 FLEXINTEGER ITEMS ....................................................................................A-18
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
B.4.1 MODBUS MEMORY MAP .................................................................................B-9
B.4.2 DATA FORMATS .............................................................................................B-74
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

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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 GOOSE DATA ....C-3
C.2.5 GGIO4: GENERIC ANALOG MEASURED VALUES.........................................C-3
C.2.6 MMXU: 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/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-11
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 COMMS. D.1 IEC 60870-5-104 PROTOCOL
D.1.1 INTEROPERABILITY DOCUMENT...................................................................D-1
D.1.2 POINTS LIST.....................................................................................................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
E.2.1 BINARY INPUT POINTS ................................................................................... E-8
E.2.2 BINARY AND CONTROL RELAY OUTPUT...................................................... E-9
E.2.3 COUNTERS..................................................................................................... E-10
E.2.4 ANALOG INPUTS............................................................................................ E-11
F. RADIUS SERVER F.1 RADIUS SERVER CONFIGURATION
F.1.1 RADIUS SERVER CONFIGURATION .............................................................. F-1

GE Multilin N60 Network Stability and Synchrophasor Measurement System ix
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G. MISCELLANEOUS G.1 CHANGE NOTES
G.1.1 REVISION HISTORY ........................................................................................ G-1
G.1.2 CHANGES TO THE MANUAL .......................................................................... G-1
G.2 ABBREVIATIONS
G.2.1 STANDARD ABBREVIATIONS ........................................................................ G-5
G.3 WARRANTY
G.3.1 GE MULTILIN WARRANTY .............................................................................. G-7
INDEX

x N60 Network Stability and Synchrophasor Measurement System GE Multilin
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