GE T60 User manual

828743A2.CDR
T60 Transformer Protection System
UR Series Instruction Manual
T60 Revision: 7.0x
Manual P/N: 1601-0090-Y2 (GEK-119502A)
GE Digital Energy
650 Markland Street
Markham, Ontario
Canada L6C 0M1
Tel: [phone] Fax: [phone]
Internet: http://www.GEDigitalEnergy.com
GE Multilin's Quality Management
System is registered to ISO
9001:2008
QMI # 005094
UL # A3775
*1601-0090-Y2*
LISTED
52TL
IND.CONT. EQ.
E83849
GE
Digital Energy

Copyright © 2012 GE Multilin Inc. All rights reserved.
T60 Transformer Protection System UR Series Instruction Manual revision 7.0x.
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: 1601-0090-Y2 (November 2012)

GE Multilin T60 Transformer Protection System iii
TABLE OF CONTENTS
1. GETTING STARTED 1.1 IMPORTANT PROCEDURES
1.1.1 CAUTIONS AND WARNINGS ........................................................................... 1-1
1.1.2 INSPECTION CHECKLIST ................................................................................ 1-1
1.2 UR OVERVIEW
1.2.1 INTRODUCTION TO THE UR ........................................................................... 1-2
1.2.2 HARDWARE ARCHITECTURE ......................................................................... 1-3
1.2.3 SOFTWARE ARCHITECTURE.......................................................................... 1-4
1.2.4 IMPORTANT CONCEPTS ................................................................................. 1-4
1.3 ENERVISTA UR SETUP SOFTWARE
1.3.1 PC REQUIREMENTS ........................................................................................ 1-5
1.3.2 INSTALLATION.................................................................................................. 1-5
1.3.3 CONFIGURING THE T60 FOR SOFTWARE ACCESS .................................... 1-6
1.3.4 USING THE QUICK CONNECT FEATURE....................................................... 1-9
1.3.5 CONNECTING TO THE T60 RELAY............................................................... 1-15
1.4 UR HARDWARE
1.4.1 MOUNTING AND WIRING............................................................................... 1-16
1.4.2 COMMUNICATIONS........................................................................................ 1-16
1.4.3 FACEPLATE DISPLAY .................................................................................... 1-16
1.5 USING THE RELAY
1.5.1 FACEPLATE KEYPAD..................................................................................... 1-17
1.5.2 MENU NAVIGATION ....................................................................................... 1-17
1.5.3 MENU HIERARCHY ........................................................................................ 1-17
1.5.4 RELAY ACTIVATION....................................................................................... 1-17
1.5.5 RELAY PASSWORDS ..................................................................................... 1-18
1.5.6 FLEXLOGIC™ CUSTOMIZATION................................................................... 1-18
1.5.7 COMMISSIONING ........................................................................................... 1-19
2. PRODUCT DESCRIPTION 2.1 INTRODUCTION
2.1.1 OVERVIEW........................................................................................................ 2-1
2.1.2 ORDERING........................................................................................................ 2-3
2.1.3 REPLACEMENT MODULES ............................................................................. 2-9
2.2 SPECIFICATIONS
2.2.1 PROTECTION ELEMENTS ............................................................................. 2-12
2.2.2 USER-PROGRAMMABLE ELEMENTS........................................................... 2-16
2.2.3 MONITORING.................................................................................................. 2-17
2.2.4 METERING ...................................................................................................... 2-17
2.2.5 INPUTS ............................................................................................................ 2-18
2.2.6 POWER SUPPLY ............................................................................................ 2-19
2.2.7 OUTPUTS ........................................................................................................ 2-19
2.2.8 COMMUNICATIONS........................................................................................ 2-21
2.2.9 INTER-RELAY COMMUNICATIONS............................................................... 2-21
2.2.10 ENVIRONMENTAL .......................................................................................... 2-22
2.2.11 TYPE TESTS ................................................................................................... 2-23
2.2.12 PRODUCTION TESTS .................................................................................... 2-23
2.2.13 APPROVALS ................................................................................................... 2-24
2.2.14 MAINTENANCE ............................................................................................... 2-24
3. HARDWARE 3.1 DESCRIPTION
3.1.1 PANEL CUTOUT ............................................................................................... 3-1
3.1.2 MODULE WITHDRAWAL AND INSERTION ..................................................... 3-6
3.1.3 REAR TERMINAL LAYOUT............................................................................... 3-8
3.2 WIRING
3.2.1 TYPICAL WIRING.............................................................................................. 3-9
3.2.2 DIELECTRIC STRENGTH ............................................................................... 3-10
3.2.3 CONTROL POWER ......................................................................................... 3-10
3.2.4 CT/VT MODULES ............................................................................................ 3-11
3.2.5 PROCESS BUS MODULES ............................................................................ 3-13
3.2.6 CONTACT INPUTS AND OUTPUTS............................................................... 3-13

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3.2.7 TRANSDUCER INPUTS/OUTPUTS.................................................................3-21
3.2.8 RS232 FACEPLATE PORT..............................................................................3-22
3.2.9 CPU COMMUNICATION PORTS.....................................................................3-22
3.2.10 IRIG-B...............................................................................................................3-25
3.3 DIRECT INPUT/OUTPUT COMMUNICATIONS
3.3.1 DESCRIPTION .................................................................................................3-26
3.3.2 FIBER: LED AND ELED TRANSMITTERS ......................................................3-28
3.3.3 FIBER-LASER TRANSMITTERS .....................................................................3-28
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 ...................................................................................3-38
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...........................................................................................................4-23
4.3.5 KEYPAD ...........................................................................................................4-23
4.3.6 BREAKER CONTROL ......................................................................................4-23
4.3.7 MENUS.............................................................................................................4-24
4.3.8 CHANGING SETTINGS ...................................................................................4-26
5. SETTINGS 5.1 OVERVIEW
5.1.1 SETTINGS MAIN MENU ....................................................................................5-1
5.1.2 INTRODUCTION TO ELEMENTS......................................................................5-4
5.1.3 INTRODUCTION TO AC SOURCES..................................................................5-5
5.2 PRODUCT SETUP
5.2.1 SECURITY..........................................................................................................5-8
5.2.2 CYBERSENTRY SECURITY............................................................................5-12
5.2.3 DISPLAY PROPERTIES ..................................................................................5-18
5.2.4 CLEAR RELAY RECORDS ..............................................................................5-19
5.2.5 COMMUNICATIONS ........................................................................................5-21
5.2.6 MODBUS USER MAP ......................................................................................5-47
5.2.7 REAL TIME CLOCK .........................................................................................5-47
5.2.8 USER-PROGRAMMABLE FAULT REPORT....................................................5-53
5.2.9 OSCILLOGRAPHY ...........................................................................................5-54
5.2.10 DATA LOGGER................................................................................................5-56
5.2.11 DEMAND ..........................................................................................................5-58
5.2.12 USER-PROGRAMMABLE LEDS .....................................................................5-59
5.2.13 USER-PROGRAMMABLE SELF TESTS .........................................................5-62
5.2.14 CONTROL PUSHBUTTONS ............................................................................5-64
5.2.15 USER-PROGRAMMABLE PUSHBUTTONS....................................................5-65
5.2.16 FLEX STATE PARAMETERS ..........................................................................5-70
5.2.17 USER-DEFINABLE DISPLAYS ........................................................................5-71
5.2.18 DIRECT INPUTS AND OUTPUTS....................................................................5-73
5.2.19 TELEPROTECTION .........................................................................................5-81
5.2.20 INSTALLATION ................................................................................................5-82

GE Multilin T60 Transformer Protection System v
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5.3 REMOTE RESOURCES
5.3.1 REMOTE RESOURCES CONFIGURATION................................................... 5-83
5.4 SYSTEM SETUP
5.4.1 AC INPUTS ...................................................................................................... 5-84
5.4.2 POWER SYSTEM............................................................................................ 5-86
5.4.3 SIGNAL SOURCES ......................................................................................... 5-87
5.4.4 TRANSFORMER ............................................................................................. 5-89
5.4.5 BREAKERS.................................................................................................... 5-101
5.4.6 DISCONNECT SWITCHES ........................................................................... 5-105
5.4.7 FLEXCURVES™............................................................................................ 5-108
5.4.8 PHASOR MEASUREMENT UNIT.................................................................. 5-115
5.5 FLEXLOGIC
5.5.1 INTRODUCTION TO FLEXLOGIC ................................................................ 5-137
5.5.2 FLEXLOGIC RULES ...................................................................................... 5-148
5.5.3 FLEXLOGIC EVALUATION ........................................................................... 5-148
5.5.4 FLEXLOGIC EXAMPLE ................................................................................. 5-149
5.5.5 FLEXLOGIC EQUATION EDITOR................................................................. 5-153
5.5.6 FLEXLOGIC TIMERS .................................................................................... 5-153
5.5.7 FLEXELEMENTS........................................................................................... 5-154
5.5.8 NON-VOLATILE LATCHES ........................................................................... 5-158
5.6 GROUPED ELEMENTS
5.6.1 OVERVIEW.................................................................................................... 5-159
5.6.2 SETTING GROUP ......................................................................................... 5-159
5.6.3 DISTANCE ..................................................................................................... 5-160
5.6.4 POWER SWING DETECT............................................................................. 5-178
5.6.5 LOAD ENCROACHMENT.............................................................................. 5-187
5.6.6 TRANSFORMER ELEMENTS ....................................................................... 5-189
5.6.7 PHASE CURRENT ........................................................................................ 5-198
5.6.8 NEUTRAL CURRENT.................................................................................... 5-209
5.6.9 GROUND CURRENT..................................................................................... 5-217
5.6.10 BREAKER FAILURE...................................................................................... 5-224
5.6.11 VOLTAGE ELEMENTS.................................................................................. 5-232
5.7 CONTROL ELEMENTS
5.7.1 OVERVIEW.................................................................................................... 5-243
5.7.2 TRIP BUS....................................................................................................... 5-243
5.7.3 SETTING GROUPS ....................................................................................... 5-245
5.7.4 SELECTOR SWITCH..................................................................................... 5-246
5.7.5 UNDERFREQUENCY.................................................................................... 5-252
5.7.6 OVERFREQUENCY ...................................................................................... 5-253
5.7.7 SYNCHROCHECK......................................................................................... 5-254
5.7.8 DIGITAL ELEMENTS..................................................................................... 5-258
5.7.9 DIGITAL COUNTERS .................................................................................... 5-261
5.7.10 MONITORING ELEMENTS ........................................................................... 5-263
5.8 INPUTS AND OUTPUTS
5.8.1 CONTACT INPUTS........................................................................................ 5-274
5.8.2 VIRTUAL INPUTS.......................................................................................... 5-276
5.8.3 CONTACT OUTPUTS.................................................................................... 5-277
5.8.4 VIRTUAL OUTPUTS...................................................................................... 5-279
5.8.5 REMOTE DEVICES ....................................................................................... 5-280
5.8.6 REMOTE INPUTS.......................................................................................... 5-281
5.8.7 REMOTE DOUBLE-POINT STATUS INPUTS .............................................. 5-282
5.8.8 REMOTE OUTPUTS...................................................................................... 5-282
5.8.9 RESETTING................................................................................................... 5-283
5.8.10 DIRECT INPUTS AND OUTPUTS................................................................. 5-283
5.8.11 TELEPROTECTION INPUTS AND OUTPUTS.............................................. 5-287
5.8.12 IEC 61850 GOOSE ANALOGS...................................................................... 5-289
5.8.13 IEC 61850 GOOSE INTEGERS..................................................................... 5-290
5.9 TRANSDUCER INPUTS AND OUTPUTS
5.9.1 DCMA INPUTS .............................................................................................. 5-291
5.9.2 RTD INPUTS.................................................................................................. 5-292
5.9.3 RRTD INPUTS ............................................................................................... 5-293
5.9.4 DCMA OUTPUTS .......................................................................................... 5-297
5.10 TESTING
5.10.1 TEST MODE .................................................................................................. 5-301

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5.10.2 FORCE CONTACT INPUTS...........................................................................5-302
5.10.3 FORCE CONTACT OUTPUTS.......................................................................5-303
5.10.4 PHASOR MEASUREMENT UNIT TEST VALUES.........................................5-304
6. ACTUAL VALUES 6.1 OVERVIEW
6.1.1 ACTUAL VALUES MAIN 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 TELEPROTECTION INPUTS .............................................................................6-5
6.2.5 CONTACT OUTPUTS ........................................................................................6-5
6.2.6 VIRTUAL OUTPUTS ..........................................................................................6-6
6.2.7 REMOTE DEVICES............................................................................................6-6
6.2.8 DIGITAL COUNTERS.........................................................................................6-7
6.2.9 SELECTOR SWITCHES ....................................................................................6-7
6.2.10 FLEX STATES....................................................................................................6-7
6.2.11 ETHERNET ........................................................................................................6-7
6.2.12 REAL TIME CLOCK SYNCHRONIZING ............................................................6-8
6.2.13 DIRECT INPUTS ................................................................................................6-9
6.2.14 DIRECT DEVICES STATUS ..............................................................................6-9
6.2.15 IEC 61850 GOOSE INTEGERS .......................................................................6-10
6.2.16 EGD PROTOCOL STATUS..............................................................................6-10
6.2.17 TELEPROTECTION CHANNEL TESTS...........................................................6-11
6.2.18 REMAINING CONNECTION STATUS .............................................................6-11
6.3 METERING
6.3.1 METERING CONVENTIONS ...........................................................................6-12
6.3.2 TRANSFORMER ..............................................................................................6-15
6.3.3 SOURCES ........................................................................................................6-16
6.3.4 SYNCHROCHECK ...........................................................................................6-21
6.3.5 TRACKING FREQUENCY................................................................................6-21
6.3.6 FLEXELEMENTS™..........................................................................................6-22
6.3.7 IEC 61580 GOOSE ANALOG VALUES ...........................................................6-22
6.3.8 PHASOR MEASUREMENT UNIT ....................................................................6-23
6.3.9 VOLTS PER HERTZ.........................................................................................6-24
6.3.10 RESTRICTED GROUND FAULT......................................................................6-24
6.3.11 TRANSDUCER INPUTS AND OUTPUTS........................................................6-24
6.4 RECORDS
6.4.1 USER-PROGRAMMABLE FAULT REPORTS .................................................6-25
6.4.2 EVENT RECORDS...........................................................................................6-25
6.4.3 OSCILLOGRAPHY ...........................................................................................6-25
6.4.4 DATA LOGGER................................................................................................6-26
6.4.5 PHASOR MEASUREMENT UNIT RECORDS .................................................6-27
6.4.6 BREAKER MAINTENANCE .............................................................................6-27
6.5 PRODUCT INFORMATION
6.5.1 MODEL INFORMATION...................................................................................6-28
6.5.2 FIRMWARE REVISIONS..................................................................................6-28
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 ..................................................7-3
7.1.7 SECURITY..........................................................................................................7-5
7.2 TARGETS
7.2.1 TARGETS MENU ...............................................................................................7-6
7.2.2 TARGET MESSAGES ........................................................................................7-6

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7.2.3 RELAY SELF-TESTS......................................................................................... 7-6
8. SECURITY 8.1 USER ACCOUNTS
8.1.1 OVERVIEW........................................................................................................ 8-1
8.1.2 ENABLING THE SECURITY MANAGEMENT SYSTEM ................................... 8-1
8.1.3 ADDING A NEW USER ..................................................................................... 8-1
8.1.4 MODIFYING USER PRIVILEGES ..................................................................... 8-2
8.2 CYBERSENTRY
8.2.1 OVERVIEW........................................................................................................ 8-4
8.2.2 SECURITY MENU ............................................................................................. 8-6
9. COMMISSIONING 9.1 DIFFERENTIAL CHARACTERISTIC TEST
9.1.1 DESCRIPTION................................................................................................... 9-1
9.2 DIFFERENTIAL CHARACTERISTIC TEST EXAMPLES
9.2.1 INTRODUCTION................................................................................................ 9-3
9.2.2 TEST EXAMPLE 1 ............................................................................................. 9-4
9.2.3 TEST EXAMPLE 2 ............................................................................................. 9-9
9.2.4 TEST EXAMPLE 3 ........................................................................................... 9-10
9.2.5 TEST EXAMPLE 4 ........................................................................................... 9-11
9.3 INRUSH INHIBIT TEST
9.3.1 INRUSH INHIBIT TEST PROCEDURE ........................................................... 9-12
9.4 OVEREXCITATION INHIBIT TEST
9.4.1 OVEREXCITATION INHIBIT TEST PROCEDURE ......................................... 9-13
9.5 FREQUENCY ELEMENT TESTS
9.5.1 TESTING UNDERFREQENCY AND OVERFREQUENCY ELEMENTS ......... 9-14
9.6 COMMISSIONING TEST TABLES
9.6.1 DIFFERENTIAL RESTRAINT TESTS.............................................................. 9-16
9.6.2 INRUSH INHIBIT TESTS ................................................................................. 9-16
9.6.3 OVEREXCITATION INHIBIT TESTS............................................................... 9-17
A. FLEXANALOG AND
FLEXINTEGER
PARAMETERS
A.1 PARAMETER LISTS
A.1.1 FLEXANALOG ITEMS .......................................................................................A-1
A.1.2 FLEXINTEGER ITEMS ....................................................................................A-24
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 CRC-16 ALGORITHM........................................................................................B-2
B.2 MODBUS FUNCTION CODES
B.2.1 SUPPORTED FUNCTION CODES ...................................................................B-3
B.2.2 READ ACTUAL VALUES OR SETTINGS (FUNCTION CODE 03/04H) ...........B-3
B.2.3 EXECUTE OPERATION (FUNCTION CODE 05H) ...........................................B-4
B.2.4 STORE SINGLE SETTING (FUNCTION CODE 06H) .......................................B-4
B.2.5 STORE MULTIPLE SETTINGS (FUNCTION CODE 10H) ................................B-5
B.2.6 EXCEPTION RESPONSES ...............................................................................B-5
B.3 FILE TRANSFERS
B.3.1 OBTAINING RELAY FILES VIA MODBUS ........................................................B-6
B.3.2 MODBUS PASSWORD OPERATION ...............................................................B-7
B.4 MEMORY MAPPING
B.4.1 MODBUS MEMORY MAP .................................................................................B-8

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B.4.2 DATA FORMATS............................................................................................. B-76
C. IEC 61850
COMMUNICATIONS
C.1 OVERVIEW
C.1.1 INTRODUCTION ............................................................................................... C-1
C.1.2 COMMUNICATION PROFILES ......................................................................... C-1
C.2 SERVER DATA ORGANIZATION
C.2.1 OVERVIEW ....................................................................................................... C-2
C.2.2 GGIO1: DIGITAL STATUS VALUES ................................................................. C-2
C.2.3 GGIO2: DIGITAL CONTROL VALUES.............................................................. C-2
C.2.4 GGIO3: DIGITAL STATUS AND ANALOG VALUES FROM RECEIVED GOOSE
DATAC-2
C.2.5 GGIO4: GENERIC ANALOG MEASURED VALUES.........................................C-2
C.2.6 MMXU: ANALOG MEASURED VALUES ..........................................................C-3
C.2.7 PROTECTION AND OTHER LOGICAL NODES...............................................C-3
C.3 SERVER FEATURES AND CONFIGURATION
C.3.1 BUFFERED/UNBUFFERED REPORTING........................................................ C-5
C.3.2 FILE TRANSFER ............................................................................................... C-5
C.3.3 TIMESTAMPS AND SCANNING ....................................................................... C-5
C.3.4 LOGICAL DEVICE NAME ................................................................................. C-5
C.3.5 LOCATION ........................................................................................................ C-5
C.3.6 LOGICAL NODE NAME PREFIXES.................................................................. C-6
C.3.7 CONNECTION TIMING ..................................................................................... C-6
C.3.8 NON-IEC 61850 DATA ...................................................................................... C-6
C.3.9 COMMUNICATION SOFTWARE UTILITIES..................................................... C-6
C.4 GENERIC SUBSTATION EVENT SERVICES: GSSE AND GOOSE
C.4.1 OVERVIEW ....................................................................................................... C-7
C.4.2 GSSE CONFIGURATION.................................................................................. C-7
C.4.3 FIXED GOOSE .................................................................................................. C-7
C.4.4 CONFIGURABLE GOOSE ................................................................................ C-7
C.4.5 ETHERNET MAC ADDRESS FOR GSSE/GOOSE ........................................ C-10
C.4.6 GSSE ID AND GOOSE ID SETTINGS............................................................ C-10
C.5 IEC 61850 IMPLEMENTATION VIA ENERVISTA UR SETUP
C.5.1 OVERVIEW ..................................................................................................... C-11
C.5.2 CONFIGURING IEC 61850 SETTINGS ..........................................................C-12
C.5.3 ABOUT ICD FILES ..........................................................................................C-13
C.5.4 CREATING AN ICD FILE WITH ENERVISTA UR SETUP..............................C-17
C.5.5 ABOUT SCD FILES.........................................................................................C-17
C.5.6 IMPORTING AN SCD FILE WITH ENERVISTA UR SETUP........................... C-20
C.6 ACSI CONFORMANCE
C.6.1 ACSI BASIC CONFORMANCE STATEMENT ................................................ C-22
C.6.2 ACSI MODELS CONFORMANCE STATEMENT............................................ C-22
C.6.3 ACSI SERVICES CONFORMANCE STATEMENT......................................... C-23
C.7 LOGICAL NODES
C.7.1 LOGICAL NODES TABLE ............................................................................... C-26
D. IEC 60870-5-104 COMMS. D.1 IEC 60870-5-104 PROTOCOL
D.1.1 INTEROPERABILITY DOCUMENT................................................................... D-1
D.1.2 POINT 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

GE Multilin T60 Transformer Protection System ix
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E.2.3 COUNTERS .....................................................................................................E-10
E.2.4 ANALOG INPUTS ............................................................................................E-11
F. MISCELLANEOUS F.1 CHANGE NOTES
F.1.1 REVISION HISTORY ......................................................................................... F-1
F.1.2 CHANGES TO THE T60 MANUAL ....................................................................F-2
F.2 ABBREVIATIONS
F.2.1 STANDARD ABBREVIATIONS ....................................................................... F-15
F.3 WARRANTY
F.3.1 GE MULTILIN WARRANTY ............................................................................. F-19
INDEX

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