GE Digital Energy L60 User manual

GE
Digital Energy
Instruction Manual
Product version: 7.3x
GE publication code: 1601-0082-AB2 (GEK-119622A)
L60
Line Phase Comparison System
1601-0082-AB2
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Copyright © 2015 GE Multilin Inc. All rights reserved.
L60 Line Phase Comparison System Instruction Manual for version 7.3x.
L60, 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: 1601-0082-AB2 (September 2015)

L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL iii
L60 Line Phase Comparison System
Table of contents
1 INTRODUCTION 1.1 Safety symbols and definitions...................................................................... 1-1
1.1.1 General cautions and warnings...................................................................................... 1-1
1.2 For further assistance ..................................................................................... 1-2
2PRODUCT
DESCRIPTION
2.1 Product description.......................................................................................... 2-1
2.2 Security .............................................................................................................. 2-4
2.3 Order codes ....................................................................................................... 2-8
2.3.1 Replacement modules.......................................................................................................2-11
2.4 Signal processing ...........................................................................................2-13
2.4.1 UR signal processing ..........................................................................................................2-13
2.5 Specifications..................................................................................................2-15
2.5.1 Protection elements............................................................................................................2-15
2.5.2 User-programmable elements ......................................................................................2-22
2.5.3 Monitoring................................................................................................................................2-24
2.5.4 Metering....................................................................................................................................2-24
2.5.5 Inputs .........................................................................................................................................2-25
2.5.6 Power supply..........................................................................................................................2-27
2.5.7 Outputs .....................................................................................................................................2-27
2.5.8 Communication protocols ...............................................................................................2-29
2.5.9 Inter-relay communications ...........................................................................................2-30
2.5.10 Environmental........................................................................................................................2-32
2.5.11 Type tests.................................................................................................................................2-33
2.5.12 Production tests....................................................................................................................2-33
2.5.13 Approvals .................................................................................................................................2-34
2.5.14 Maintenance...........................................................................................................................2-34
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............................................................................................................................. 3-3
3.2.3 Rear terminal layout ............................................................................................................. 3-8
3.3 Wiring ................................................................................................................. 3-9
3.3.1 Typical wiring ........................................................................................................................... 3-9
3.3.2 Dielectric strength.................................................................................................................. 3-9

iv L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL
TABLE OF CONTENTS
3.3.3 Control power........................................................................................................................3-10
3.3.4 CT/VT modules ......................................................................................................................3-11
3.3.5 Contact inputs and outputs...........................................................................................3-12
3.3.6 Transducer inputs and outputs.....................................................................................3-19
3.3.7 RS232 faceplate port..........................................................................................................3-21
3.3.8 CPU communication ports ..............................................................................................3-21
3.3.9 IRIG-B.........................................................................................................................................3-23
3.3.10 L60 channel communications .......................................................................................3-24
3.4 Direct input and output communications .................................................3-26
3.4.1 Description..............................................................................................................................3-26
3.4.2 Fiber: LED and ELED transmitters.................................................................................3-28
3.4.3 Fiber laser transmitters.....................................................................................................3-28
3.4.4 G.703 interface......................................................................................................................3-29
3.4.5 RS422 interface.....................................................................................................................3-33
3.4.6 RS422 and fiber interface ................................................................................................3-35
3.4.7 G.703 and fiber interface .................................................................................................3-35
3.4.8 IEEE C37.94 interface .........................................................................................................3-36
3.4.9 C37.94SM interface.............................................................................................................3-39
3.5 Activate relay ..................................................................................................3-42
3.6 Install software...............................................................................................3-43
3.6.1 EnerVista communication overview ...........................................................................3-43
3.6.2 System requirements.........................................................................................................3-44
3.6.3 Install software .....................................................................................................................3-44
3.7 Configure the L60 for software access.......................................................3-45
3.7.1 Configure serial communication..................................................................................3-46
3.7.2 Configure Ethernet communication ...........................................................................3-47
3.7.3 Automatic discovery of UR devices.............................................................................3-48
3.8 Connect to the L60 .........................................................................................3-48
3.8.1 Connect to the L60 in EnerVista....................................................................................3-48
3.8.2 Use Quick Connect via the front panel RS232 port .............................................3-49
3.8.3 Use Quick Connect via a rear Ethernet port............................................................3-50
3.9 Set up CyberSentry and change default password..................................3-55
4 INTERFACES 4.1 EnerVista software interface..........................................................................4-1
4.1.1 Introduction...............................................................................................................................4-1
4.1.2 Settings files ..............................................................................................................................4-1
4.1.3 Event viewing............................................................................................................................4-2
4.1.4 File support ................................................................................................................................4-2
4.1.5 EnerVista main window .......................................................................................................4-2
4.1.6 Settings templates .................................................................................................................4-3
4.1.7 Secure and lock FlexLogic equations............................................................................4-8
4.1.8 Settings file traceability.....................................................................................................4-10
4.2 Front panel interface .....................................................................................4-12
4.2.1 Front panel display..............................................................................................................4-12
4.2.2 Front panel keypad.............................................................................................................4-12
4.2.3 Menu navigation ..................................................................................................................4-13
4.2.4 Menu hierarchy.....................................................................................................................4-13
4.2.5 Changing settings................................................................................................................4-14
4.2.6 Faceplate.................................................................................................................................4-15
4.2.7 LED indicators........................................................................................................................4-17
4.2.8 Custom LED labeling ..........................................................................................................4-20
4.2.9 Breaker control .....................................................................................................................4-25
4.2.10 Change passwords .............................................................................................................4-26
4.2.11 Invalid password entry......................................................................................................4-27

TABLE OF CONTENTS
L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL v
4.3 Logic diagrams ...............................................................................................4-28
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.................................................................................................... 5-7
5.3.1 Security ....................................................................................................................................... 5-7
5.3.2 Display properties ................................................................................................................5-25
5.3.3 Clear relay records ..............................................................................................................5-27
5.3.4 Communications ..................................................................................................................5-28
5.3.5 Modbus user map ................................................................................................................5-81
5.3.6 Real-time clock......................................................................................................................5-82
5.3.7 Fault reports ...........................................................................................................................5-86
5.3.8 Oscillography .........................................................................................................................5-88
5.3.9 Data logger .............................................................................................................................5-90
5.3.10 User-programmable LEDs ...............................................................................................5-91
5.3.11 User-programmable self-tests ......................................................................................5-95
5.3.12 Control pushbuttons...........................................................................................................5-95
5.3.13 User-programmable pushbuttons...............................................................................5-97
5.3.14 Flex state parameters.....................................................................................................5-102
5.3.15 User-definable displays..................................................................................................5-103
5.3.16 Direct inputs and outputs..............................................................................................5-105
5.3.17 Teleprotection.....................................................................................................................5-112
5.3.18 Installation............................................................................................................................5-113
5.4 System setup.................................................................................................5-113
5.4.1 AC inputs ...............................................................................................................................5-113
5.4.2 Power system......................................................................................................................5-115
5.4.3 Signal sources.....................................................................................................................5-115
5.4.4 Breakers.................................................................................................................................5-118
5.4.5 Disconnect switches........................................................................................................5-123
5.4.6 FlexCurves ............................................................................................................................5-126
5.5 FlexLogic ........................................................................................................5-133
5.5.1 FlexLogic operands ..........................................................................................................5-133
5.5.2 FlexLogic rules ....................................................................................................................5-146
5.5.3 FlexLogic evaluation ........................................................................................................5-146
5.5.4 FlexLogic example............................................................................................................5-147
5.5.5 FlexLogic equation editor..............................................................................................5-152
5.5.6 FlexLogic timers .................................................................................................................5-152
5.5.7 FlexElements .......................................................................................................................5-152
5.5.8 Non-volatile latches .........................................................................................................5-156
5.6 Grouped elements........................................................................................5-157
5.6.1 Overview................................................................................................................................5-157
5.6.2 Setting group 1...................................................................................................................5-157
5.6.3 Phase comparison elements .......................................................................................5-158
5.6.4 Line pickup ...........................................................................................................................5-176
5.6.5 Distance.................................................................................................................................5-178
5.6.6 Power swing detect (ANSI 68)......................................................................................5-197
5.6.7 Load encroachment ........................................................................................................5-206
5.6.8 Phase current......................................................................................................................5-207
5.6.9 Neutral current...................................................................................................................5-219
5.6.10 Wattmetric ground fault................................................................................................5-227
5.6.11 Ground current...................................................................................................................5-231
5.6.12 Negative sequence current..........................................................................................5-234
5.6.13 Breaker failure (ANSI 50BF) ...........................................................................................5-240

vi L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL
TABLE OF CONTENTS
5.6.14 Voltage elements .............................................................................................................. 5-249
5.7 Control elements ..........................................................................................5-256
5.7.1 Overview ............................................................................................................................... 5-256
5.7.2 Trip bus .................................................................................................................................. 5-256
5.7.3 Setting groups .................................................................................................................... 5-258
5.7.4 Selector switch................................................................................................................... 5-259
5.7.5 Trip output............................................................................................................................ 5-265
5.7.6 Synchrocheck (ANSI 25) ................................................................................................. 5-271
5.7.7 Digital elements................................................................................................................. 5-274
5.7.8 Digital counters.................................................................................................................. 5-277
5.7.9 Monitoring elements ....................................................................................................... 5-279
5.7.10 Pilot schemes...................................................................................................................... 5-296
5.7.11 Autoreclose (ANSI 79)...................................................................................................... 5-299
5.8 Inputs/outputs ..............................................................................................5-313
5.8.1 Contact inputs.................................................................................................................... 5-313
5.8.2 Virtual inputs....................................................................................................................... 5-315
5.8.3 Contact outputs................................................................................................................. 5-316
5.8.4 Virtual outputs.................................................................................................................... 5-318
5.8.5 Resetting ............................................................................................................................... 5-319
5.8.6 Direct inputs and outputs ............................................................................................. 5-319
5.8.7 Teleprotection..................................................................................................................... 5-323
5.9 Transducer inputs/outputs.........................................................................5-325
5.9.1 DCmA inputs ....................................................................................................................... 5-325
5.9.2 RTD inputs ............................................................................................................................ 5-326
5.9.3 DCmA outputs .................................................................................................................... 5-327
5.10 Testing............................................................................................................5-330
5.10.1 Test mode function .......................................................................................................... 5-330
5.10.2 Test mode forcing............................................................................................................. 5-331
5.10.3 Force contact inputs ....................................................................................................... 5-332
5.10.4 Force contact outputs .................................................................................................... 5-332
6 ACTUAL VALUES 6.1 Actual values menu..........................................................................................6-1
6.2 Status..................................................................................................................6-3
6.2.1 Contact inputs..........................................................................................................................6-3
6.2.2 Virtual inputs.............................................................................................................................6-3
6.2.3 RxGOOSE boolean inputs ....................................................................................................6-3
6.2.4 RxGOOSE DPS inputs.............................................................................................................6-4
6.2.5 Teleprotection inputs ............................................................................................................6-4
6.2.6 Contact outputs.......................................................................................................................6-4
6.2.7 Virtual outputs..........................................................................................................................6-5
6.2.8 RxGOOSE status.......................................................................................................................6-5
6.2.9 RxGOOSE statistics.................................................................................................................6-5
6.2.10 Autoreclose................................................................................................................................6-6
6.2.11 Digital counters........................................................................................................................6-6
6.2.12 Selector switches ....................................................................................................................6-6
6.2.13 Flex States ..................................................................................................................................6-6
6.2.14 Ethernet.......................................................................................................................................6-7
6.2.15 Real time clock synchronizing ..........................................................................................6-7
6.2.16 Direct inputs ..............................................................................................................................6-8
6.2.17 Direct devices status.............................................................................................................6-8
6.2.18 Teleprotection channel tests.............................................................................................6-8
6.2.19 Remaining connection status ...........................................................................................6-9
6.2.20 Parallel Redundancy Protocol (PRP) ...............................................................................6-9
6.3 Metering...........................................................................................................6-10
6.3.1 Metering conventions........................................................................................................6-10

TABLE OF CONTENTS
L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL vii
6.3.2 Sources......................................................................................................................................6-14
6.3.3 Synchrocheck.........................................................................................................................6-17
6.3.4 Tracking frequency..............................................................................................................6-17
6.3.5 FlexElements ..........................................................................................................................6-18
6.3.6 RxGOOSE analogs................................................................................................................6-18
6.3.7 Wattmetric ground fault...................................................................................................6-19
6.3.8 Transducer inputs/outputs..............................................................................................6-19
6.3.9 Distance....................................................................................................................................6-19
6.4 Records.............................................................................................................6-21
6.4.1 Fault reports ...........................................................................................................................6-21
6.4.2 Event records .........................................................................................................................6-21
6.4.3 Oscillography .........................................................................................................................6-22
6.4.4 Data logger .............................................................................................................................6-22
6.4.5 Breaker maintenance.........................................................................................................6-22
6.5 Product information ......................................................................................6-23
6.5.1 Model information................................................................................................................6-23
6.5.2 Firmware revisions ..............................................................................................................6-23
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 .................................................................................................... 7-4
7.2.1 Target messages.................................................................................................................... 7-5
7.2.2 Relay self-tests ........................................................................................................................ 7-5
8 APPLICATION OF
SETTINGS
8.1 87PC phase comparison element.................................................................. 8-1
8.1.1 Overview..................................................................................................................................... 8-1
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

viii L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL
TABLE OF CONTENTS
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............................................................................................9-7
9.1.5 Blocking versus tripping schemes ...............................................................................9-12
9.1.6 Single versus dual phase comparison.......................................................................9-19
9.1.7 Refinements to basic schemes .....................................................................................9-21
9.1.8 Multi-terminal lines .............................................................................................................9-24
9.1.9 Charging current compensation ..................................................................................9-25
9.1.10 L60 signal processing ........................................................................................................9-27
9.2 Single-pole tripping........................................................................................9-34
9.2.1 Overview ..................................................................................................................................9-34
9.2.2 Phase selection.....................................................................................................................9-37
9.3 Fault locator ....................................................................................................9-39
9.3.1 Fault type determination.................................................................................................. 9-39
10 MAINTENANCE 10.1 General maintenance ....................................................................................10-1
10.1.1 In-service maintenance....................................................................................................10-1
10.1.2 Out-of-service maintenance ..........................................................................................10-1
10.1.3 Unscheduled maintenance (system interruption) ................................................10-2
10.2 Back up and restore settings .......................................................................10-2
10.2.1 Back up settings...................................................................................................................10-2
10.2.2 Restore settings....................................................................................................................10-3
10.3 Upgrade firmware ..........................................................................................10-4
10.4 Upgrade software...........................................................................................10-5
10.5 Replace module ..............................................................................................10-6
10.6 Battery..............................................................................................................10-7
10.6.1 Replace battery for RH/RL power supply .................................................................10-7
10.6.2 Replace battery for SH/SL power supply..................................................................10-8
10.6.3 Dispose of battery ...............................................................................................................10-9
10.7 Clear files and data after uninstall ...........................................................10-12
10.8 Repairs............................................................................................................10-13
10.9 Storage ...........................................................................................................10-13
10.10Disposal..........................................................................................................10-13
AFLEXANALOG
OPERANDS
A.1 FlexAnalog items .............................................................................................A-1
B RADIUS SERVER
CONFIGURATION
B.1 RADIUS server configuration .........................................................................B-1
C MISCELLANEOUS C.1 Warranty ...........................................................................................................C-1
C.2 Revision history ................................................................................................C-1
ABBREVIATIONS
INDEX

L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 1-1
L60 Line Phase Comparison System
Chapter 1: Introduction
Introduction
This chapter outlines safety and technical support information.
1.1 Safety symbols and definitions
Before attempting to install or use the device, review all safety indicators in this document to help prevent injury,
equipment damage, or downtime.
The following safety and equipment symbols are used in this document.
1.1.1 General cautions and warnings
The following general safety precautions and warnings apply.
Follow the requirements of this manual, including adequate wiring size and type, terminal torque settings, voltage,
current magnitudes applied, and adequate isolation/clearance in external wiring from high to low voltage circuits.
Use the device only for its intended purpose and application.
Ensure that all ground paths are uncompromised for safety purposes during device operation and service.
Ensure that the control power applied to the device, the AC current, and voltage input match the ratings specified on
the relay nameplate. Do not apply current or voltage in excess of the specified limits.
DANGER
Indicates a hazardous situation which, if not avoided, will result in death or serious injury.
WARNING
Indicates a hazardous situation which, if not avoided, could result in death or serious injury.
CAUTION
Indicates a hazardous situation which, if not avoided, could result in minor or moderate injury.
NOTICE
Indicates practices not related to personal injury.
DANGER
Ensure that all connections to the product are correct so as to avoid accidental risk of shock
and/or fire, for example such as can arise from high voltage connected to low voltage terminals.

1-2 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL
FOR FURTHER ASSISTANCE CHAPTER 1: INTRODUCTION
1
Only qualified personnel are to operate the device. Such personnel must be thoroughly familiar with all safety
cautions and warnings in this manual and with applicable country, regional, utility, and plant safety regulations.
Hazardous voltages can exist in the power supply and at the device connection to current transformers, voltage
transformers, control, and test circuit terminals. Make sure all sources of such voltages are isolated prior to
attempting work on the device.
Hazardous voltages can exist when opening the secondary circuits of live current transformers. Make sure that
current transformer secondary circuits are shorted out before making or removing any connection to the current
transformer (CT) input terminals of the device.
For tests with secondary test equipment, ensure that no other sources of voltages or currents are connected to such
equipment and that trip and close commands to the circuit breakers or other switching apparatus are isolated,
unless this is required by the test procedure and is specified by appropriate utility/plant procedure.
When the device is used to control primary equipment, such as circuit breakers, isolators, and other switching
apparatus, all control circuits from the device to the primary equipment must be isolated while personnel are
working on or around this primary equipment to prevent any inadvertent command from this device.
Use an external disconnect to isolate the mains voltage supply.
1.2 For further assistance
For product support, contact the information and call center as follows:
GE Digital Energy
650 Markland Street
Markham, Ontario
Canada L6C 0M1
Worldwide telephone: [phone]
Europe/Middle East/Africa telephone: [phone]
North America toll-free: 1 800 547 8629
Fax: [phone]
Worldwide e-mail: multilin.t[email protected]
Europe e-mail: multilin.tech.[email protected]
Website: http://www.gedigitalenergy.com/multilin
CAUTION
LED transmitters are classified as IEC 60825-1 Accessible Emission Limit (AEL) Class 1M. Class 1M
devices are considered safe to the unaided eye. Do not view directly with optical instruments.
NOTICE
This product is rated to Class A emissions levels and is to be used in Utility, Substation Industrial
environments. Not to be used near electronic devices rated for Class B levels.