GE L90 - Page 893

INDEX
L90 LINE CURRENT DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL xi
Overvoltage
auxiliary ..................................................................................2-37, 5-307
logic diagram ...................................................................................5-314
neutral .....................................................................................2-37, 5-305
phase ........................................................................2-36, 5-196, 5-304
settings ...............................................................................................5-312
P
Panel cutout .....................................................................................3-2, 3-5
Parallel Redundancy Protocol
actual values .......................................................................................6-11
explained ..............................................................................................5-48
settings ..................................................................................................5-46
specifications ......................................................................................2-48
Parity ...........................................................................................................5-43
Part numbering .....................................................................................2-11
Passwords
authentication by device or server ..........................................5-17
bypass authentication ...................................................................5-24
change ...................................................................................................4-60
change after installation ...............................................................3-65
change does not take relay out of service .............................5-1
command .................................................................................4-61, 5-11
default ....................................................................................................5-15
explained ................................................................................................ 2-8
FlexLogic operands .......................................................................5-201
lockout .......................................................................................4-62, 5-15
lost password ....................................................................................... 5-9
requirements ........................................................................................5-9
reset to factory defaults .................................................................. 5-9
rules ...........................................................................................................5-9
settings ......................................................................................4-61, 5-11
settings templates ..............................................................................4-7
wrong entry .........................................................................................4-62
Permissive functions .......................................................................5-302
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 .......................................................................5-196
logic diagram ...................................................................................5-267
phase A polarization ....................................................................5-265
settings ...............................................................................................5-264
specifications ......................................................................................2-35
Phase distance
FlexLogic operands .......................................................................5-196
logic diagram ...................................................................................5-235
OP scheme ........................................................................................5-234
settings ...............................................................................................5-226
specifications ......................................................................................2-31
Phase IOC
FlexLogic operands .......................................................................5-196
logic diagram ...................................................................................5-264
settings ...............................................................................................5-263
specifications .....................................................................................2-34
Phase overvoltage
FlexLogic operands .......................................................................5-196
logic diagram ...................................................................................5-305
settings ...............................................................................................5-304
specifications .....................................................................................2-36
Phase rotation ....................................................................................5-138
Phase select
FlexLogic operands .......................................................................5-196
logic diagram ...................................................................................10-41
Phase TOC
FlexLogic operands .......................................................................5-197
logic diagram ...................................................................................5-263
settings ...............................................................................................5-261
specifications .....................................................................................2-34
Phase undervoltage
FlexLogic operands .......................................................................5-197
logic diagram ...................................................................................5-304
settings ...............................................................................................5-303
specifications .....................................................................................2-36
Phaselets ..................................................................................................10-1
Phasor display graphical front panel ..........................4-58, 5-33
Phasor estimation .............................................................................10-21
Phasor explained ...............................................................................5-167
Phasors and phaselets ....................................................................10-1
Pickup, line ............................................................................................5-222
Pilot channel relaying ..........................................................................2-5
Pilot schemes
application of settings ...................................................................8-16
blocking ...............................................................................5-388, 5-392
directional comparison blocking .............................5-388, 5-392
directional comparison unblocking .......................................5-393
DUTT .....................................................................................................5-376
hybrid POTT .......................................................................................5-384
POTT .....................................................................................................5-383
POTT settings ...................................................................................5-380
PUTT .....................................................................................................5-378
settings ...............................................................................................5-376
specifications .....................................................................................2-39
unblocking .........................................................................................5-393
Plastic film on front panel ............................................................11-20
PMU
actual values ..............................................................6-25, 6-26, 6-33
connections remaining .................................................................6-10
explained ............................................................................................5-167
FlexAnalogs .............................................................................A-17, A-30
number in UR device ....................................................................5-168
see Synchrophasor
settings, aggregator .....................................................................5-184
settings, recording .........................................................................5-183
settings, tests ...................................................................................5-429
status of activation .........................................................................6-34