GE D90 Plus - Page 681

D90
PLUS
LINE DISTANCE PROTECTION SYSTEM – INSTRUCTION MANUAL 671
D90
Plus
Line Distance Protection System
Index
A
AC modules
connections .............................................................................................47
description ............................................................................................ 174
Altitude ...........................................................................................................38
Annunciator
operation ........................................................................................76, 582
settings ................................................................................................... 583
specifications ..........................................................................................33
Approvals .....................................................................................................38
Automation contact inputs
chatter detection ............................................................................... 468
description ............................................................................................ 465
operands ................................................................................................ 488
settings .........................................................................................467, 468
Automation contact outputs
description ............................................................................................ 469
operands ................................................................................................ 488
settings ................................................................................................... 469
trip circuit monitoring example .................................................. 470
Automation logic
Boolean operators ............................................................................ 477
comparators ........................................................................................ 479
equation editor ................................................................................... 481
latches .................................................................................................... 477
math operators ................................................................................... 478
math processing ................................................................................ 478
one-shots .............................................................................................. 476
operands ................................................................................................ 487
operators ............................................................................................... 476
overview ................................................................................................. 473
programming example ................................................................... 482
rules .......................................................................................................... 482
specifications ..........................................................................................29
timers ...................................................................................................... 480
Automation overview ......................................................................... 429
Automation virtual analog outputs
description .............................................................................................471
settings ...................................................................................................471
Automation virtual inputs
description .............................................................................................461
logic ..........................................................................................................462
settings ...................................................................................................461
specifications ..........................................................................................29
Automation virtual outputs
description .............................................................................................463
operands ................................................................................................487
programming example ...................................................................463
settings ...................................................................................................463
specifications ..........................................................................................30
Autoreclose
breaker blocking .................................................................................346
dual breaker operation ...................................................................343
force three-pole trip ..........................................................................349
front panel control .............................................................................360
lockout .....................................................................................................347
manual close ........................................................................................349
operands ................................................................................................415
operation ................................................................................................339
overview ..........................................................................................13, 338
pause input ...........................................................................................343
programs ...............................................................................................339
reset after reclosure .........................................................................346
settings ...................................................................................................353
signal flow logic ..................................................................................359
specifications ..........................................................................................18
zone 1 extension ................................................................................349
Auxiliary overvoltage
description .............................................................................................275
logic ..........................................................................................................276
operands ................................................................................................415
settings ...................................................................................................275
specifications ..........................................................................................19