GE D90 Plus Instruction Manual page 662

Trip output
description ............................................................................................ 310
logic .......................................................................................................... 313
operands ................................................................................................ 414
settings ................................................................................................... 310
single-pole operation ....................................................................... 310
specifications ..........................................................................................35
three-pole operation ........................................................................ 310
Type tests
.....................................................................................................45
Typical wiring
.............................................................................................51
U
Underfrequency
description ............................................................................................ 346
logic .......................................................................................................... 348
settings ................................................................................................... 347
specifications ..........................................................................................36
Uninstall files
........................................................................................... 640
Upgrade firmware
................................................................................ 639
Upgrade software ................................................................................ 638
USB port
specifications ..........................................................................................43
User-configurable ope rands
communications ................................................................................ 473
User-configurable operands
communications ..................................................166, 401, 486, 544
User-programmable self-tests
settings ................................................................................................... 144
V
Voltage cut-off level
............................................................................ 176
Voltage elements
.................................................................................. 257
Voltage inputs
settings ................................................................................................... 174
Voltage metering
specifications ..........................................................................................38
VT fuse failure
description ............................................................................................ 318
logic .......................................................................................................... 319
operands ................................................................................................ 414
settings ................................................................................................... 319
specifications ..........................................................................................36
W
Warnings
.........................................................................................................1
Warranty .................................................................................................... 643
Wattmetric zero-sequence directional
description ............................................................................................ 278
logic .......................................................................................................... 282
settings ................................................................................................... 278
specifications ..........................................................................................36
Wiring
.............................................................................................................51
652
Z
Zero-sequence CBCT ..............................................................................56
PLUS
D90 LINE DISTANCE PROTECTION SYSTEM – INSTRUCTION MANUAL
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