GE L90 - Page 892

x L90 LINE CURRENT DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL
INDEX
Modules
add and check settings not defaulted .................................11-24
communications .............................................................................. 3-30
CT/VT .............................................................................................3-14, 5-8
order codes ......................................................................................... 2-26
power supply ..................................................................................... 3-13
replace ................................................................................................11-23
transducer I/O ................................................................................... 3-28
Monitor
actual values ...................................................................................... 11-1
devices .................................................................................................. 11-1
Monitoring elements settings ....................................................5-352
Mounting ............................................................................................3-2, 3-5
N
Nameplate, rear .....................................................................................3-1
NAND gate explained ....................................................................... 4-84
Navigation keys ................................................................................... 4-38
Negative sequence directional overcurrent
characteristics .................................................................................5-290
FlexLogic operands .......................................................................5-195
logic diagram ...................................................................................5-292
settings ...............................................................................................5-288
specifications ..................................................................................... 2-35
Negative sequence IOC
FlexLogic operands .......................................................................5-195
logic diagram ...................................................................................5-288
settings ...............................................................................................5-287
specifications ..................................................................................... 2-35
Negative sequence TOC
FlexLogic operands .......................................................................5-195
logic diagram ...................................................................................5-287
settings ...............................................................................................5-286
specifications ..................................................................................... 2-34
Neutral directional overcurrent
FlexLogic operands .......................................................................5-195
logic diagram ...................................................................................5-275
polarization .......................................................................................5-273
settings ...............................................................................................5-270
specifications ..................................................................................... 2-35
Neutral IOC
FlexLogic operands .......................................................................5-195
logic diagram ...................................................................................5-270
settings ...............................................................................................5-269
specifications ..................................................................................... 2-34
Neutral overvoltage
FlexLogic operands .......................................................................5-195
logic diagram ...................................................................................5-306
settings ...............................................................................................5-305
specifications ..................................................................................... 2-37
Neutral TOC
FlexLogic operands .......................................................................5-195
logic diagram ...................................................................................5-269
settings ...............................................................................................5-268
specifications ..................................................................................... 2-34
Non-volatile latches
FlexLogic operands ...................................................................... 5-194
settings ............................................................................................... 5-214
specifications .....................................................................................2-41
NOR gate explained ...........................................................................4-84
NOT gate explained ...........................................................................4-84
O
Obtain list of port numbers ...........................................................5-46
One-shot
commands menu, PMU ....................................................................7-4
error compiling in Engineer .........................................................4-71
FlexLogic operators ...................................................................... 5-203
Open pole detector
FlexLogic operands ...................................................................... 5-195
logic diagrams ................................................................................ 5-369
settings ............................................................................................... 5-367
specifications .....................................................................................2-40
Operating temperature ...................................................................2-51
Operating times ...................................................................................2-31
Operator command to force logoff .............................................7-6
OR gate explained ..............................................................................4-84
Order codes ............................................................................................2-11
actual values ......................................................................................6-34
update ..........................................................................................3-60, 7-3
Oscillatory transient testing specifications ..........................2-52
Oscillography
actual values ......................................................................................6-32
clearing ........................................................................................5-41, 7-2
settings ............................................................................................... 5-116
specifications .....................................................................................2-42
via EnerVista software ......................................................................4-2
Out of service ............................................................................................5-1
Out-of-step tripping ............................................................ 2-39, 5-247
Outputs
contact outputs ............................................................................. 5-416
control power specifications ......................................................2-47
critical failure relay specifications ............................................2-46
direct outputs .................................................................................. 5-421
Fast form-C relay specifications ...............................................2-47
Form-A relay ...........................................................................2-46, 3-16
Form-C relay .......................................................................................3-16
Form-C relay specifications ........................................................2-46
latching output specifications ....................................................2-46
latching outputs ............................................................................. 5-417
virtual outputs ................................................................................ 5-420
Overcurrent curve types .............................................................. 5-256
Overcurrent curves
FlexCurves ........................................................................................ 5-261
IAC ........................................................................................................ 5-259
IEC ......................................................................................................... 5-257
Overfrequency
FlexLogic operands ...................................................................... 5-195
logic diagram .................................................................................. 5-341
settings ............................................................................................... 5-341
specifications .....................................................................................2-37