GE L60 User manual

GE
Grid Solutions
Instruction Manual
Product version: 7.6x
GE publication code: 1601-0082-AF2 (GEK-131003A)
L60
Line Phase Comparison System
1601-0082-AF2
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Copyright © 2017 GE Multilin Inc. All rights reserved.
L60 Line Phase Comparison System Instruction Manual for version 7.6x.
L60, FlexLogic, FlexElement, FlexCurve, FlexAnalog, FlexInteger, FlexState, EnerVista,
CyberSentry, HardFiber, Multilin, and GE Multilin are trademarks or registered trademarks
of GE Multilin Inc.
The contents of this manual are the property of GE Multilin Inc. This documentation is
furnished on license and may not be reproduced in whole or in part without the permission
of GE Multilin. The content of this manual is for informational use only and is subject to
change without notice.
Part number: 1601-0082-AF2 (October 2017)

L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL iii
L60 Line Phase Comparison System
Table of contents
1INTRODUCTION 1.1 Safety symbols and definitions ........................................................................... 1-1
1.1.1 General cautions and warnings .................................................................................... 1-1
1.2 For further assistance........................................................................................... 1-2
2PRODUCT
DESCRIPTION
2.1 Product description ............................................................................................... 2-1
2.2 Security .................................................................................................................... 2-5
2.3 Order codes............................................................................................................. 2-9
2.3.1 Replacement modules.....................................................................................................2-12
2.4 Signal processing................................................................................................. 2-14
2.4.1 UR signal processing ........................................................................................................2-14
2.5 Specifications........................................................................................................ 2-16
2.5.1 Protection elements..........................................................................................................2-17
2.5.2 User-programmable elements ....................................................................................2-24
2.5.3 Monitoring..............................................................................................................................2-25
2.5.4 Metering..................................................................................................................................2-26
2.5.5 Inputs .......................................................................................................................................2-27
2.5.6 Power supply........................................................................................................................2-29
2.5.7 Outputs....................................................................................................................................2-29
2.5.8 Communication protocols..............................................................................................2-31
2.5.9 Inter-relay communications..........................................................................................2-32
2.5.10 CyberSentry security.........................................................................................................2-34
2.5.11 Graphical front panel........................................................................................................2-34
2.5.12 Environmental......................................................................................................................2-34
2.5.13 Type tests...............................................................................................................................2-35
2.5.14 Production tests..................................................................................................................2-36
2.5.15 Approvals ...............................................................................................................................2-36
2.5.16 Maintenance.........................................................................................................................2-36
3 INSTALLATION 3.1 Unpack and inspect ............................................................................................... 3-1
3.2 Panel cutouts.......................................................................................................... 3-2
3.2.1 Horizontal units ..................................................................................................................... 3-2
3.2.2 Vertical units........................................................................................................................... 3-6
3.2.3 Rear terminal layout .........................................................................................................3-11
3.3 Wiring..................................................................................................................... 3-14

iv L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL
TABLE OF CONTENTS
3.3.1 Typical wiring.......................................................................................................................3-14
3.3.2 Dielectric strength .............................................................................................................3-14
3.3.3 Control power......................................................................................................................3-15
3.3.4 CT/VT modules ....................................................................................................................3-16
3.3.5 Contact inputs and outputs ..........................................................................................3-17
3.3.6 Transducer inputs and outputs...................................................................................3-29
3.3.7 RS232 port.............................................................................................................................3-31
3.3.8 CPU communication ports ............................................................................................3-32
3.3.9 IRIG-B.......................................................................................................................................3-34
3.3.10 L60 channel communications .....................................................................................3-35
3.4 Direct input and output communications .......................................................3-36
3.4.1 Description............................................................................................................................3-36
3.4.2 Fiber: LED and ELED transmitters...............................................................................3-38
3.4.3 Fiber laser transmitters...................................................................................................3-38
3.4.4 G.703 interface....................................................................................................................3-39
3.4.5 RS422 interface...................................................................................................................3-43
3.4.6 RS422 and fiber interface ..............................................................................................3-45
3.4.7 G.703 and fiber interface................................................................................................3-46
3.4.8 IEEE C37.94 interface .......................................................................................................3-46
3.4.9 C37.94SM interface...........................................................................................................3-49
3.5 Activate relay ........................................................................................................3-52
3.6 Install software.....................................................................................................3-53
3.6.1 EnerVista communication overview ......................................................................... 3-53
3.6.2 System requirements....................................................................................................... 3-54
3.6.3 Install software....................................................................................................................3-55
3.7 Add device to software........................................................................................3-56
3.7.1 Set IP address in UR..........................................................................................................3-57
3.7.2 Configure serial connection..........................................................................................3-62
3.7.3 Configure Ethernet connection...................................................................................3-64
3.7.4 Automatic discovery of UR devices...........................................................................3-65
3.8 Connect to the L60 ...............................................................................................3-65
3.8.1 Connect to the L60 in EnerVista..................................................................................3-66
3.8.2 Use Quick Connect via front RS232 port.................................................................3-67
3.8.3 Use Quick Connect via front USB port .....................................................................3-67
3.8.4 Use Quick Connect via a rear Ethernet port..........................................................3-68
3.9 Set up CyberSentry and change default password........................................3-68
3.10 Import settings .....................................................................................................3-69
3.11 Connect to D400 gateway...................................................................................3-70
3.11.1 Oscillography files..............................................................................................................3-70
3.11.2 Event records.......................................................................................................................3-70
3.11.3 Log files...................................................................................................................................3-70
3.11.4 Setting files............................................................................................................................3-71
4INTERFACES 4.1 EnerVista software interface................................................................................4-1
4.1.1 Introduction .............................................................................................................................4-1
4.1.2 Settings files ............................................................................................................................4-1
4.1.3 Event viewing..........................................................................................................................4-2
4.1.4 File support ..............................................................................................................................4-3
4.1.5 EnerVista main window .....................................................................................................4-3
4.1.6 Protection summary window..........................................................................................4-4
4.1.7 Settings templates................................................................................................................4-5
4.1.8 Secure and lock FlexLogic equations..........................................................................4-9
4.1.9 Settings file traceability...................................................................................................4-12
4.2 Front panel interface ...........................................................................................4-15
4.2.1 Front panel............................................................................................................................4-15

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L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL v
4.2.2 Front panel display............................................................................................................4-17
4.2.3 Front panel navigation keys..........................................................................................4-37
4.2.4 LED indicators ......................................................................................................................4-38
4.2.5 Front panel labelling .........................................................................................................4-43
4.2.6 Menu navigation.................................................................................................................4-50
4.2.7 Change settings ..................................................................................................................4-52
4.2.8 View actual values.............................................................................................................4-57
4.2.9 Breaker control....................................................................................................................4-58
4.2.10 Change passwords............................................................................................................4-59
4.2.11 Invalid password entry ....................................................................................................4-60
4.3 Logic diagrams..................................................................................................... 4-61
4.4 FlexLogic design using Engineer ....................................................................... 4-62
4.4.1 Design logic...........................................................................................................................4-64
4.4.2 Send file to and from device .........................................................................................4-74
4.4.3 Monitor logic.........................................................................................................................4-75
4.4.4 View front panel and print labels................................................................................4-76
4.4.5 Generate connectivity report........................................................................................4-77
4.4.6 Preferences ...........................................................................................................................4-77
4.4.7 Toolbars ..................................................................................................................................4-81
5 SETTINGS 5.1 Settings menu......................................................................................................... 5-1
5.2 Overview.................................................................................................................. 5-4
5.2.1 Introduction to elements .................................................................................................. 5-4
5.2.2 Introduction to AC sources .............................................................................................. 5-5
5.3 Product setup.......................................................................................................... 5-8
5.3.1 Security ..................................................................................................................................... 5-8
5.3.2 Display properties ..............................................................................................................5-26
5.3.3 Graphical front panel........................................................................................................5-28
5.3.4 Clear relay records.............................................................................................................5-40
5.3.5 Communications ................................................................................................................5-41
5.3.6 Modbus user map ........................................................................................................... 5-108
5.3.7 Real-time clock.................................................................................................................5-108
5.3.8 Fault reports ......................................................................................................................5-113
5.3.9 Oscillography.....................................................................................................................5-115
5.3.10 Data logger ........................................................................................................................5-117
5.3.11 Demand ...............................................................................................................................5-118
5.3.12 User-programmable LEDs ..........................................................................................5-120
5.3.13 User-programmable self-tests .................................................................................5-124
5.3.14 Control pushbuttons......................................................................................................5-125
5.3.15 User-programmable pushbuttons..........................................................................5-126
5.3.16 Flex state parameters...................................................................................................5-132
5.3.17 User-definable displays................................................................................................5-133
5.3.18 Direct inputs and outputs............................................................................................5-135
5.3.19 Teleprotection...................................................................................................................5-141
5.3.20 Installation..........................................................................................................................5-142
5.4 System setup.......................................................................................................5-142
5.4.1 AC inputs .............................................................................................................................5-142
5.4.2 Power system....................................................................................................................5-144
5.4.3 Signal sources...................................................................................................................5-145
5.4.4 Breakers...............................................................................................................................5-148
5.4.5 Disconnect switch control...........................................................................................5-153
5.4.6 FlexCurves...........................................................................................................................5-158
5.5 FlexLogic ..............................................................................................................5-165
5.5.1 FlexLogic operands ........................................................................................................5-165
5.5.2 FlexLogic rules ..................................................................................................................5-179

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5.5.3 FlexLogic evaluation...................................................................................................... 5-180
5.5.4 FlexLogic example..........................................................................................................5-180
5.5.5 FlexLogic equation editor............................................................................................ 5-185
5.5.6 FlexLogic timers............................................................................................................... 5-185
5.5.7 FlexElements ..................................................................................................................... 5-185
5.5.8 Non-volatile latches.......................................................................................................5-190
5.6 Grouped elements............................................................................................. 5-191
5.6.1 Overview ............................................................................................................................. 5-191
5.6.2 Setting group 1................................................................................................................. 5-191
5.6.3 Phase comparison elements..................................................................................... 5-192
5.6.4 Line pickup ......................................................................................................................... 5-210
5.6.5 Distance............................................................................................................................... 5-213
5.6.6 Power swing detect (ANSI 68).................................................................................... 5-233
5.6.7 Load encroachment ...................................................................................................... 5-242
5.6.8 Phase current ................................................................................................................... 5-243
5.6.9 Neutral current................................................................................................................. 5-255
5.6.10 Wattmetric ground fault.............................................................................................. 5-263
5.6.11 Ground current ................................................................................................................ 5-267
5.6.12 Negative sequence current........................................................................................ 5-270
5.6.13 Breaker failure (ANSI 50BF)......................................................................................... 5-276
5.6.14 Voltage elements ............................................................................................................ 5-286
5.7 Control elements ............................................................................................... 5-295
5.7.1 Overview ............................................................................................................................. 5-295
5.7.2 Trip bus ................................................................................................................................ 5-295
5.7.3 Setting groups .................................................................................................................. 5-297
5.7.4 Selector switch................................................................................................................. 5-298
5.7.5 Trip output.......................................................................................................................... 5-305
5.7.6 Synchrocheck (ANSI 25) ............................................................................................... 5-311
5.7.7 Digital elements............................................................................................................... 5-316
5.7.8 Digital counters................................................................................................................ 5-319
5.7.9 Monitoring elements ..................................................................................................... 5-321
5.7.10 Pilot schemes.................................................................................................................... 5-344
5.7.11 Autoreclose (ANSI 79).................................................................................................... 5-346
5.8 Inputs/outputs ................................................................................................... 5-360
5.8.1 Contact inputs.................................................................................................................. 5-360
5.8.2 Virtual inputs..................................................................................................................... 5-362
5.8.3 Contact outputs............................................................................................................... 5-363
5.8.4 Virtual outputs.................................................................................................................. 5-366
5.8.5 Resetting ............................................................................................................................. 5-366
5.8.6 Direct inputs and outputs ........................................................................................... 5-367
5.8.7 Teleprotection................................................................................................................... 5-371
5.9 Transducer inputs/outputs.............................................................................. 5-373
5.9.1 DCmA inputs...................................................................................................................... 5-373
5.9.2 RTD inputs .......................................................................................................................... 5-374
5.9.3 DCmA outputs .................................................................................................................. 5-375
5.10 Testing................................................................................................................. 5-379
5.10.1 Test mode function ........................................................................................................5-379
5.10.2 Test mode forcing........................................................................................................... 5-379
5.10.3 Force contact inputs ..................................................................................................... 5-380
5.10.4 Force contact outputs .................................................................................................. 5-380
6 ACTUAL VALUES 6.1 Actual values menu................................................................................................6-1
6.2 Front panel...............................................................................................................6-3
6.2.1 Enhanced and standard front panels .........................................................................6-3
6.2.2 Graphical front panel..........................................................................................................6-4

TABLE OF CONTENTS
L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL vii
6.3 Status .......................................................................................................................6-4
6.3.1 Contact inputs ....................................................................................................................... 6-4
6.3.2 Virtual inputs........................................................................................................................... 6-4
6.3.3 RxGOOSE boolean inputs.................................................................................................. 6-5
6.3.4 RxGOOSE DPS inputs .......................................................................................................... 6-5
6.3.5 Teleprotection inputs.......................................................................................................... 6-5
6.3.6 Contact outputs .................................................................................................................... 6-5
6.3.7 Virtual outputs ....................................................................................................................... 6-6
6.3.8 RxGOOSE status.................................................................................................................... 6-6
6.3.9 RxGOOSE statistics .............................................................................................................. 6-6
6.3.10 Autoreclose ............................................................................................................................. 6-7
6.3.11 Digital counters ..................................................................................................................... 6-7
6.3.12 Selector switches.................................................................................................................. 6-7
6.3.13 Flex States................................................................................................................................ 6-8
6.3.14 Ethernet .................................................................................................................................... 6-8
6.3.15 Real time clock synchronizing........................................................................................ 6-8
6.3.16 Direct inputs............................................................................................................................ 6-9
6.3.17 Direct devices status ........................................................................................................6-10
6.3.18 Teleprotection channel tests ........................................................................................6-10
6.3.19 Remaining connection status.......................................................................................6-10
6.3.20 Parallel Redundancy Protocol (PRP)...........................................................................6-11
6.3.21 TxGOOSE status ..................................................................................................................6-11
6.4 Metering.................................................................................................................6-12
6.4.1 Metering conventions.......................................................................................................6-12
6.4.2 Sources....................................................................................................................................6-16
6.4.3 Synchrocheck.......................................................................................................................6-20
6.4.4 Tracking frequency............................................................................................................6-21
6.4.5 FlexElements.........................................................................................................................6-21
6.4.6 RxGOOSE analogs ..............................................................................................................6-22
6.4.7 Wattmetric ground fault .................................................................................................6-22
6.4.8 Transducer inputs/outputs............................................................................................6-22
6.4.9 Distance..................................................................................................................................6-23
6.5 Records ..................................................................................................................6-24
6.5.1 Fault reports .........................................................................................................................6-24
6.5.2 Event records .......................................................................................................................6-25
6.5.3 Oscillography........................................................................................................................6-27
6.5.4 Data logger ...........................................................................................................................6-27
6.5.5 Breaker maintenance.......................................................................................................6-28
6.6 Product information ............................................................................................ 6-28
6.6.1 Model information..............................................................................................................6-28
6.6.2 Firmware revisions ............................................................................................................6-29
7 COMMANDS AND
TARGETS
7.1 Commands menu................................................................................................... 7-1
7.1.1 Virtual inputs........................................................................................................................... 7-2
7.1.2 Clear records .......................................................................................................................... 7-2
7.1.3 Set date and time................................................................................................................. 7-3
7.1.4 Relay maintenance.............................................................................................................. 7-3
7.1.5 Security ..................................................................................................................................... 7-4
7.2 Targets menu.......................................................................................................... 7-5
7.2.1 Target messages .................................................................................................................. 7-5
7.2.2 Relay self-tests ...................................................................................................................... 7-6
8 APPLICATION OF
SETTINGS
8.1 87PC phase comparison element........................................................................ 8-1
8.1.1 Overview................................................................................................................................... 8-1

viii L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL
TABLE OF CONTENTS
8.1.2 Settings......................................................................................................................................8-1
8.1.3 Settings example...................................................................................................................8-3
8.2 Distance/backup supervision...............................................................................8-4
8.2.1 Overview ...................................................................................................................................8-4
8.2.2 Lines with tapped transformers.....................................................................................8-5
8.2.3 Transformer load currents ...............................................................................................8-6
8.2.4 Low-voltage-side faults .....................................................................................................8-6
8.2.5 Transformer inrush current..............................................................................................8-6
8.2.6 Tractional load .......................................................................................................................8-7
8.2.7 Sensitivity issues....................................................................................................................8-7
8.2.8 Single-pole tripping applications...................................................................................8-9
8.2.9 Phase distance....................................................................................................................8-10
8.2.10 Ground distance.................................................................................................................8-11
8.3 POTT signaling scheme .......................................................................................8-11
8.3.1 Overview ................................................................................................................................8-11
8.4 Series compensated lines ...................................................................................8-12
8.4.1 Distance settings................................................................................................................8-12
8.5 Understanding L60 oscillography .....................................................................8-14
8.5.1 Overview ................................................................................................................................8-14
8.5.2 Two-breaker configuration ...........................................................................................8-15
9 THEORY OF
OPERATION
9.1 Overview ..................................................................................................................9-1
9.1.1 Introduction .............................................................................................................................9-1
9.1.2 Fundamental principle of phase comparison .........................................................9-1
9.1.3 Variations in phase comparison schemes................................................................9-7
9.1.4 Phase comparison excitation..........................................................................................9-8
9.1.5 Blocking versus tripping schemes .............................................................................9-12
9.1.6 Single versus dual phase comparison .....................................................................9-20
9.1.7 Refinements to basic schemes....................................................................................9-22
9.1.8 Multi-terminal lines ...........................................................................................................9-26
9.1.9 Charging current compensation ................................................................................ 9-26
9.1.10 L60 signal processing ......................................................................................................9-28
9.2 Single-pole tripping..............................................................................................9-36
9.2.1 Overview ................................................................................................................................9-36
9.2.2 Phase selection...................................................................................................................9-39
9.3 Fault locator ..........................................................................................................9-41
9.3.1 Fault type determination................................................................................................9-41
10 MAINTENANCE 10.1 Monitoring .............................................................................................................10-1
10.1.1 Devices with Site Targets ...............................................................................................10-1
10.1.2 Data with Modbus Analyzer..........................................................................................10-1
10.2 General maintenance ..........................................................................................10-3
10.2.1 In-service maintenance..................................................................................................10-3
10.2.2 Out-of-service maintenance ........................................................................................10-3
10.2.3 Unscheduled maintenance (system interruption) ..............................................10-3
10.3 Retrieve files..........................................................................................................10-3
10.3.1 CyberSentry security event files..................................................................................10-4
10.4 Convert device settings.......................................................................................10-5
10.5 Copy settings to other device ............................................................................10-7
10.6 Compare settings .................................................................................................10-7
10.6.1 Compare against defaults.............................................................................................10-7
10.6.2 Compare two devices ...................................................................................................... 10-8
10.7 Back up and restore settings .............................................................................10-8
10.7.1 Back up settings .................................................................................................................10-8

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L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL ix
10.7.2 Restore settings ...............................................................................................................10-11
10.8 Upgrade software ..............................................................................................10-13
10.9 Upgrade firmware..............................................................................................10-14
10.10 Replace front panel ...........................................................................................10-15
10.11 Replace module..................................................................................................10-23
10.12 Battery .................................................................................................................10-24
10.12.1 Replace battery for SH/SL power supply .............................................................10-24
10.12.2 Dispose of battery...........................................................................................................10-26
10.13 Clear files and data after uninstall.................................................................10-29
10.14 Repairs .................................................................................................................10-29
10.15 Storage.................................................................................................................10-30
10.16 Disposal ...............................................................................................................10-30
AFLEXANALOG
OPERANDS
A.1 FlexAnalog items ....................................................................................................A-1
B RADIUS SERVER
CONFIGURATION
B.1 RADIUS server configuration ...............................................................................B-1
C COMMAND LINE
INTERFACE
C.1 Command line interface .......................................................................................C-1
D MISCELLANEOUS D.1 Warranty .................................................................................................................D-1
D.2 Revision history ......................................................................................................D-1
ABBREVIATIONS
INDEX

xL60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL
TABLE OF CONTENTS