672 D90
PLUS
LINE DISTANCE PROTECTION SYSTEM – INSTRUCTION MANUAL
INDEX
Auxiliary undervoltage
logic .......................................................................................................... 274
operands ................................................................................................ 416
settings ................................................................................................... 273
specifications ..........................................................................................19
B
Backwards compatible ................................................60, 82, 92, 251
Bandwidth limitation settings ........................................................ 101
Battery monitor
description ............................................................................................ 497
indications ............................................................................................. 497
logic .......................................................................................................... 500
operands ......................................................................................503, 504
settings ................................................................................................... 498
specifications ..........................................................................................30
wiring ....................................................................................................... 498
Breaker arcing
operands, analog ............................................................................... 504
operands, current .............................................................................. 504
Breaker arcing current
logic .......................................................................................................... 496
measurement ...................................................................................... 494
settings ................................................................................................... 495
specifications ..........................................................................................30
Breaker configuration
description ............................................................................................ 365
logic .......................................................................................................... 368
operands ................................................................................................ 416
settings ................................................................................................... 365
Breaker control
description ............................................................................................ 431
logic .......................................................................................................... 433
operands ................................................................................................ 488
settings ................................................................................................... 431
specifications ..........................................................................................30
Breaker failure
determination ...................................................................................... 277
initiation stage .................................................................................... 277
logic .......................................................................................................... 283
operands ................................................................................................ 416
overview ..........................................................................................13, 276
settings ................................................................................................... 278
specifications ..........................................................................................19
Breaker flashover
description ............................................................................................ 372
logic .......................................................................................................... 374
operands ................................................................................................ 417
settings ................................................................................................... 373
six VT application ............................................................................... 376
specifications ..........................................................................................19
three VT application ......................................................................... 375
Breaker interlocking
description .............................................................................................434
logic ..........................................................................................................436
operands ................................................................................................488
settings ....................................................................................................434
specifications ..........................................................................................30
C
Cautions ........................................................................................................... 1
Certifications .......................................................................................37, 38
Clock
operands ................................................................................................169
set manually .........................................................................................104
settings for IRIG-B and DST ...........................................................146
Communications ..............................................................................17, 91
Compatibility, backwards .......................................... 60, 82, 92, 251
Contact inputs
connections .............................................................................................49
specifications ..................................................................................19, 34
Contact outputs
connections .............................................................................................49
specifications ..........................................................................................34
CT/VT channel configuration ..........................................................181
Current cut-off level .............................................................................176
Current inputs, settings .....................................................................175
Current metering
operands ......................................................................................578, 579
specifications ..........................................................................................31
D
Damage to the unit .................................................................................39
Data logger
channel configuration ......................................................................558
operands ................................................................................................576
overview .................................................................................................556
settings ....................................................................................................556
specifications ..........................................................................................31
Dielectric strength ...................................................................................43
Digital counters
description .............................................................................................377
logic ..........................................................................................................379
operands ................................................................................................417
operands, analog ...............................................................................427
settings ....................................................................................................377
Digital fault recorder
description .............................................................................................505
front panel display ................................................................................73
overview ....................................................................................................16
Dimensions ..................................................................................................40
Direct devices, operands ..................................................................168
Direct inputs, settings .........................................................................394
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