GE L90 Instruction Manual page 892

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
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
x
....................................................5-352
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
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
OR gate explained
.............................................................................. 4-84
Order codes
............................................................................................ 2-11
actual values ...................................................................................... 6-34
update ..........................................................................................3-60, 7-3
Oscillatory transient testing specifications
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
L90 LINE CURRENT DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL
INDEX
........................................................... 5-46
.............................................7-6
.......................... 2-52