GE D90 Plus Instruction Manual page 7

TABLE OF CONTENTS
11 METERING
12 LOCAL INTERFACE
13 SECURITY
14 TESTING
15 THEORY OF
OPERATION
PLUS
D90 LINE DISTANCE PROTECTION SYSTEM - INSTRUCTION MANUAL
Metering source......................................................................................................... 473
Phasor measurement unit ....................................................................................... 473
Phasor measurement unit configuration...................................................................................... 474
Phasor measurement unit calibration............................................................................................ 475
Phasor measurement unit communications............................................................................... 476
Phasor measurement unit triggering ............................................................................................. 479
Phasor measurement unit recording.............................................................................................. 488
Phasor measurement unit reporting over network ................................................................. 492
Phasor measurement unit one-shot ............................................................................................... 493
Data logger................................................................................................................. 496
Data logger function configuration ................................................................................................. 496
Data logger channel configuration.................................................................................................. 498
Shared operands ....................................................................................................... 500
Shared metering operands.................................................................................................................. 501
Metering logic operands ....................................................................................................................... 502
Local interface overview.......................................................................................... 505
Annunciator panel..................................................................................................... 505
Annunciator operation........................................................................................................................... 505
Annunciator configuration................................................................................................................... 507
Mimic diagram editor ............................................................................................... 509
Dynamic symbols ..................................................................................................................................... 510
Static symbols............................................................................................................................................ 511
Metering blocks ......................................................................................................................................... 512
Text blocks ................................................................................................................................................... 513
View modes................................................................................................................................................. 513
Pre-configured mimic diagrams ....................................................................................................... 514
User-programmable pushbuttons ......................................................................... 518
User-programmable pushbuttons settings ................................................................................. 519
Password security ..................................................................................................... 523
Password security settings .................................................................................................................. 524
Password security operation .............................................................................................................. 526
EnerVista security management system .............................................................. 527
Enabling the security management system................................................................................ 527
Adding a new user ................................................................................................................................... 527
Modifying user privileges ...................................................................................................................... 528
Test mode ................................................................................................................... 531
Force contact inputs ............................................................................................................................... 531
Force contact outputs............................................................................................................................ 532
Self-tests ..................................................................................................................... 533
Self-test error messages....................................................................................................................... 534
Plus
The D90 distance elements ............................................................................... 539
Distance element arming logic.......................................................................................................... 539
Distance element time domain algorithm.................................................................................... 540
Distance element frequency domain algorithm........................................................................ 540
Distance supervision............................................................................................................................... 541
Distance characteristics........................................................................................................................ 542
Memory polarization............................................................................................................................... 548
Distance elements analysis................................................................................................................. 549
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