GE L90 Instruction Manual page 816

Overvoltage
auxiliary ..................................................................................2-37, 5-287
logic diagram ...................................................................................5-294
neutral .....................................................................................2-37, 5-285
phase ........................................................................ 2-36, 5-177, 5-284
settings ...............................................................................................5-292
P
Panel cutout .....................................................................................3-2, 3-3
Parallel Redundancy Protocol
actual values ...................................................................................... 6-10
explained ............................................................................................. 5-34
settings ................................................................................................. 5-32
specifications ..................................................................................... 2-48
Parity
.......................................................................................................... 5-29
Part numbering
.................................................................................... 2-11
Passwords
authentication by device or server .......................................... 5-16
bypass authentication ................................................................... 5-23
change .................................................................................................. 4-29
change after installation .............................................................. 3-61
change does not take relay out of service ............................. 5-1
command .................................................................... 4-30, 5-10, 5-11
default ................................................................................................... 5-14
explained ................................................................................................ 2-8
FlexLogic operands .......................................................................5-182
lockout ...................................................................................... 4-31, 5-14
lost password ....................................................................................... 5-9
requirements ........................................................................................ 5-9
reset to factory defaults .................................................................. 5-9
rules ........................................................................................................... 5-9
settings ......................................................................... 4-30, 5-10, 5-11
settings templates .............................................................................. 4-7
wrong entry ........................................................................................ 4-31
Permissive functions
.......................................................................5-282
Permissive overreach transfer trip
see POTT
Permissive under-reach transfer trip
see PUTT
Per-unit quantity .................................................................................... 5-4
PFLL status
................................................................................................ 6-8
Phase angle metering
...................................................................... 6-13
Phase current metering
.................................................................. 6-17
Phase directional overcurrent
FlexLogic operands .......................................................................5-176
logic diagram ...................................................................................5-247
phase A polarization .....................................................................5-245
settings ...............................................................................................5-244
specifications ..................................................................................... 2-35
Phase distance
FlexLogic operands .......................................................................5-177
logic diagram ...................................................................................5-215
OP scheme ........................................................................................5-214
settings ...............................................................................................5-206
specifications ..................................................................................... 2-31
x
Phase IOC
FlexLogic operands ...................................................................... 5-177
logic diagram .................................................................................. 5-244
settings ............................................................................................... 5-243
specifications ..................................................................................... 2-34
Phase overvoltage
FlexLogic operands ...................................................................... 5-177
logic diagram .................................................................................. 5-285
settings ............................................................................................... 5-284
specifications ..................................................................................... 2-36
Phase rotation .................................................................................... 5-122
Phase select
FlexLogic operands ...................................................................... 5-177
logic diagram .................................................................................. 10-41
Phase TOC
FlexLogic operands ...................................................................... 5-177
logic diagram .................................................................................. 5-243
settings ............................................................................................... 5-241
specifications ..................................................................................... 2-34
Phase undervoltage
FlexLogic operands ...................................................................... 5-178
logic diagram .................................................................................. 5-284
settings ............................................................................................... 5-283
specifications ..................................................................................... 2-36
Phaselets
.................................................................................................. 10-1
Phasor estimation ............................................................................ 10-21
Phasor explained .............................................................................. 5-148
Phasors and phaselets
..................................................................... 10-1
Pickup, line
........................................................................................... 5-202
Pilot channel relaying
..........................................................................2-5
Pilot schemes
application of settings ................................................................... 8-16
blocking ...............................................................................5-367, 5-371
directional comparison blocking .............................5-367, 5-371
directional comparison unblocking ...................................... 5-373
DUTT .................................................................................................... 5-355
hybrid POTT ...................................................................................... 5-363
POTT ..................................................................................................... 5-362
POTT settings ................................................................................... 5-359
PUTT ..................................................................................................... 5-357
settings ............................................................................................... 5-355
specifications ..................................................................................... 2-39
unblocking ........................................................................................ 5-373
PMU
actual values .............................................................. 6-25, 6-26, 6-32
connections remaining .................................................................. 6-10
explained ........................................................................................... 5-148
FlexAnalogs .............................................................................A-17, A-30
number in UR device ................................................................... 5-149
see Synchrophasor
settings, aggregator .................................................................... 5-164
settings, recording ........................................................................ 5-164
settings, tests .................................................................................. 5-408
status of activation .......................................................................... 6-34
L90 LINE CURRENT DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL
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