INDEX
D90
PLUS
LINE DISTANCE PROTECTION SYSTEM – INSTRUCTION MANUAL 675
Metering logic
operands ...............168, 169, 427, 491, 504, 531, 576, 577, 625
Mimic diagram
overview ................................................................................................. 588
settings ................................................................................................... 594
MMXU deadbands ................................................................................ 132
Modbus protocol
settings ................................................................................................... 106
specifications ...................................................................................36, 37
user map ................................................................................................ 106
N
Negative-sequence directional overcurrent
description ............................................................................................ 261
logic .......................................................................................................... 264
operands ................................................................................................ 420
settings ................................................................................................... 262
specifications ..........................................................................................23
Negative-sequence instantaneous overcurrent
description ............................................................................................ 259
logic .......................................................................................................... 260
operands ................................................................................................ 421
settings ................................................................................................... 259
specifications ..........................................................................................23
Negative-sequence overvoltage
description ............................................................................................ 272
logic .......................................................................................................... 273
operands ................................................................................................ 421
settings ................................................................................................... 272
specifications ..........................................................................................23
Negative-sequence time overcurrent
description ............................................................................................ 257
logic .......................................................................................................... 258
operands ................................................................................................ 421
settings ................................................................................................... 257
specifications ..........................................................................................23
Network filtering for bandwidth limitation ............................ 101
Network settings ......................................................................................94
Network topologies ................................................................................91
Neutral directional overcurrent
description ............................................................................................ 247
logic .......................................................................................................... 252
operands ................................................................................................ 422
settings ................................................................................................... 249
specifications ..........................................................................................24
Neutral instantaneous overcurrent
description ............................................................................................ 245
operands ................................................................................................ 421
settings ................................................................................................... 246
specifications ..........................................................................................24
Neutral overvoltage
description ............................................................................................ 270
logic .......................................................................................................... 271
operands ................................................................................................ 421
settings ................................................................................................... 270
specifications ..........................................................................................24
Neutral time overcurrent
description .............................................................................................243
logic ................................................................................................245, 247
operands ................................................................................................421
settings ...................................................................................................244
specifications ..........................................................................................24
Nominal frequency ..............................................................................179
Non-volatile latches
description .............................................................................................408
logic ..........................................................................................................409
operands ................................................................................................420
settings ...................................................................................................408
specifications ..........................................................................................24
Notes ................................................................................................................. 1
O
Open pole detector
description .............................................................................................335
logic ..........................................................................................................337
operands ................................................................................................422
settings ...................................................................................................335
specifications ..........................................................................................25
Operating temperature ........................................................................38
Out-of-step tripping .............................................................................211
Overfrequency
description .............................................................................................363
logic ..........................................................................................................364
settings ...................................................................................................363
specifications ..........................................................................................25
P
Parallel Redundancy Protocol ..........................................................95
Password security
operation ................................................................................................610
settings ...................................................................................................610
Per-unit quantities ................................................................................172
Phase directional overcurrent
description .............................................................................................240
logic ..........................................................................................................243
operands ................................................................................................422
settings ...................................................................................................241
specifications ..........................................................................................25
Phase distance
description .............................................................................................190
logic ..........................................................................................................199
operands ................................................................................................422
settings ...................................................................................................190
specifications ..........................................................................................25
Phase instantaneous overcurrent
description ...................................................................................238, 239
operands ................................................................................................423
settings ...................................................................................................238
specifications ..........................................................................................27