GE UR series

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GE Multilin L60 Line Phase Comparison System 8-15

8 THEORY OF OPERATION 8.1 OVERVIEW

Figure 8–11: SINGLE-PHASE COMPARISON TRIPPING SCHEME

Figure 8–12: SINGLE-PHASE COMPARISON BLOCKING SCHEME

Main Page

Default Chapter5
- Table of Contents5
- Cautions and Warnings13
- Introduction to the Ur14
1.2 Ur Overview15
- Hardware Architecture15
- Software Architecture16
1.3 Enervista Ur Setup Software17
- Pc Requirements17
- Configuring the L60 for Software Access18
- Using the Quick Connect Feature21
- Connecting to the L60 Relay27
1.4 Ur Hardware28
- Mounting and Wiring28
1.5 Using the Relay29
- Faceplate Keypad29
- Relay Passwords30
- Commissioning31
- Overview33
- Ordering36
- Replacement Modules38
2.2 Specifications41
- Protection Elements41
- User-Programmable Elements45
- Monitoring46
- Inputs47
- Power Supply48
B. Modbus49
Communications49
- Inter-Relay Communications50
- Environmental51
- Type Tests52
- Production Tests53
3.1 Description55
- Panel Cutout55
- Module Withdrawal and Insertion60
- Rear Terminal Layout62
3.2 Wiring64
- Typical Wiring64
- Dielectric Strength65
- Ct and Vt Modules66
- Contact Inputs and Outputs68
- Transducer Inputs and Outputs76
Direct Input and Output Communications83
- Description83
- Fiber: Led and Eled Transmitters85
- Fiber-Laser Transmitters85
- Interface86
- Rs422 Interface89
- Rs422 and Fiber Interface91
- And Fiber Interface91
- Ieee C37.94 Interface92
- C37.94Sm Interface94
Managed Ethernet Switch Modules96
- Overview96
- Managed Ethernet Switch Module Hardware96
- Managed Switch Led Indicators97
- Configuring the Managed Ethernet Switch Module97
- Uploading L60 Switch Module Firmware99
- Ethernet Switch Self-Test Errors102
Human Interfaces103
Enervista Ur Setup Software Interface103
- Introduction103
- Creating a Site List103
- Enervista Ur Setup Overview103
- Enervista Ur Setup Main Window105
Extended Enervista Ur Setup Features106
- Settings Templates106
- Securing and Locking Flexlogic™ Equations110
- Settings File Traceability112
Faceplate Interface115
- Faceplate115
- Led Indicators116
- Custom Labeling of Leds119
- Display125
- Keypad125
- Breaker Control125
- Menus126
- Changing Settings128
Settings128
Overview133
- Settings Main Menu133
- Introduction to Elements136
- Introduction to Ac Sources137
Product Setup140
- Security140
- Display Properties144
- Clear Relay Records146
- Communications147
- Modbus User Map165
- Real Time Clock166
- Fault Reports167
- Oscillography169
- Data Logger171
- User-Programmable Leds172
- User-Programmable Self Tests175
- Control Pushbuttons176
- User-Programmable Pushbuttons178
- Flex State Parameters183
  - User-Definable Displays184
  - Direct Inputs/Outputs186
- Teleprotection194
  - Installation194
System Setup196
- Ac Inputs196
- Power System198
- Signal Sources199
- Flexcurves209
Flexlogic216
- Introduction to Flexlogic216
- Flexlogic™ Rules227
- Flexlogic™ Evaluation227
- Flexlogic™ Example227
- Flexlogic Equation Editor232
Grouped Elements238
- Overview238
- Setting Group238
- Load Encroachment238
- Power Swing Detect276
- Load Encroachment285
Control Elements333
- Overview333
- Trip Bus333
Inputs/Outputs383
- Contact Inputs383
- Virtual Inputs385
- Contact Outputs386
- Virtual Outputs388
- Remote Devices389
- Remote Inputs390
- Remote Outputs391
  - Resetting392
  - Direct Inputs and Outputs393
- Teleprotection Inputs and Outputs396
- Iec 61850 Goose Analogs398
Transducer Inputs and Outputs400
- Dcma Inputs400
- Rtd Inputs401
- Dcma Outputs403
Testing406
- Test Mode406
- Force Contact Inputs407
- Force Contact Outputs408
Actual Values409
Overview409
- Actual Values Main Menu409
Status411
- Contact Inputs411
- Virtual Inputs411
- Remote Inputs411
- Remote Double-Point Status Inputs412
- Teleprotection Inputs412
- Contact Outputs412
- Virtual Outputs413
- Autoreclose 1413
- Remote Devices413
- Digital Counters414
- Selector Switches414
- Flex States414
- Ethernet415
- Direct Inputs415
- Direct Devices Status416
- Teleprotection Channel Tests416
- Ethernet Switch417
6.3 Metering418
- Metering Conventions418
- Sources421
- Synchrocheck424
- Tracking Frequency424
- Flexelements424
- Iec 61580 Goose Analog Values425
- Wattmetric Ground Fault425
- Transducer Inputs/Outputs426
Records427
- Fault Reports427
- Event Records427
- Oscillography428
- Data Logger428
- Breaker Maintenance429
Product Information430
- Model Information430
- Firmware Revisions430
Commands and431
Commands431
- Commands Menu431
- Virtual Inputs431
- Clear Records431
- Set Date and Time432
- Relay Maintenance432
- Targets Menu433
- Target Messages433
- Relay Self-Tests433
7.2 Targets433
Theory of Operation439
Overview439
- Introduction439
- Fundamental Principle of Phase Comparison439
- Variations in Phase Comparison Schemes444
- Phase Comparison Excitation444
- Blocking Vs. Tripping Schemes444
  - Blocking Vs. Tripping Schemes448
  - Single Vs. Dual Phase Comparison456
- Refinements to Basic Schemes458
- Multi-Terminal Lines461
- Charging Current Compensation461
- L60 Signal Processing463
Single-Pole Tripping471
- Overview471
- Phase Selection474
Fault Locator475
- Fault Type Determination475
9.1 Phase Comparison Element 87Pc479
Application of479
- Description479
- Use of Settings479
- Settings Example481
Distance Backup/Supervision482
- Description482
- Lines with Tapped Transformers483
- Transformer Load Currents483
- Lv-Side Faults483
- Transformer Inrush Current483
- Tractional Load484
- Sensitivity Issues485
- Single-Pole Tripping Applications486
- Phase Distance487
- Ground Distance488
Pott Signaling Scheme489
- Description489
Series Compensated Lines490
- Distance Settings490
Understanding L60 Oscillography491
- Overview491
- Two Breaker Configuration492
Flexanalog493
Parameter List493
- Flexanalog Parameters493
- A.1.1 Flexanalog Parameters493
Overview503
- Introduction503
- Physical Layer503
- Data Link Layer503
- B.1.1 Introduction503
- Algorithm504
- B.1.4 Crc-16 Algorithm504
Modbus Function Codes505
- Supported Function Codes505
- Read Actual Values or Settings (Function Code 03/04H505
- Exception Responses507
File Transfers508
- Obtaining Relay Files Via Modbus508
- Modbus Password Operation510
Memory Mapping511
- Data Formats566
- B.4.2 Data Formats566
C.1 Overview585
Iec 61850585
- Communications585
- Introduction585
- Communication Profiles585
- C.1.2 Communication Profiles585
- Overview586
- Ggio1: Digital Status Values586
- Ggio2: Digital Control Values586
- Ggio3: Digital Status and Analog Values from Received Goose Datac-2586
- Ggio4: Generic Analog Measured Values586
- C.2.1 Overview586
- Mmxu: Analog Measured Values587
- Protection and Other Logical Nodes587
C.2 Server Data Organization586
Server Features and Configuration589
- Buffered/Unbuffered Reporting589
- File Transfer589
- Timestamps and Scanning589
- Logical Device Name589
- Location589
  - Logical Node Name Prefixes590
- Connection Timing590
- Non-Iec 61850 Data590
- Communication Software Utilities590
Generic Substation Event Services: Gsse and Goose591
- Overview591
- Gsse Configuration591
- Fixed Goose591
- Configurable Goose591
- C.4.1 Overview591
- Ethernet Mac Address for Gsse/Goose593
- Gsse ID and Goose ID Settings594
- Overview595
- C.5.1 Overview595
- Configuring Iec 61850 Settings596
- About ICD Files597
- Creating an ICD File with Enervista Ur Setup601
- About Scd Files601
- Importing an Scd File with Enervista Ur Setup604
Acsi Conformance606
- Acsi Basic Conformance Statement606
- Acsi Models Conformance Statement606
- Acsi Services Conformance Statement607
Logical Nodes610
- Logical Nodes Table610
Iec 60870-5-104613
Protocol613
- Interoperability Document613
- Point List621
- D.1.2 Point List621
Dnp Communications623
- Dnp V3.00 Device Profile623
- E.1.2 Implementation Table626
Dnp Point Lists630
- Binary Input Points630
- Binary and Control Relay Output631
- Counters632
- E.2.3 Counters632
- Analog Inputs633
- E.2.4 Analog Inputs633
Change Notes635
- F.1.1 Revision History635
- Changes to the L60 Manual636
Abbreviations639
- Standard Abbreviations639
- F.2.1 Standard Abbreviations639
F.3 Warranty641
- Ge Multilin Warranty641
- F.3.1 Ge Multilin Warranty641

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