GE L90 Instruction Manual page 815

INDEX
Modules
add and check settings not defaulted .................................11-14
communications ...............................................................................3-27
CT/VT ............................................................................................ 3-12, 5-8
order codes .........................................................................................2-26
power supply ......................................................................................3-11
replace ................................................................................................11-13
transducer I/O ....................................................................................3-25
Monitor
actual values .......................................................................................11-1
devices ...................................................................................................11-1
Monitoring elements settings
Mounting ............................................................................................3-2, 3-3
N
Nameplate, rear
..................................................................................... 3-1
NAND gate explained
........................................................................4-53
Negative sequence directional overcurrent
characteristics .................................................................................5-270
FlexLogic operands .......................................................................5-175
logic diagram ...................................................................................5-272
settings ...............................................................................................5-268
specifications ......................................................................................2-35
Negative sequence IOC
FlexLogic operands .......................................................................5-175
logic diagram ...................................................................................5-268
settings ...............................................................................................5-267
specifications ......................................................................................2-35
Negative sequence TOC
FlexLogic operands .......................................................................5-175
logic diagram ...................................................................................5-267
settings ...............................................................................................5-266
specifications ......................................................................................2-34
Neutral directional overcurrent
FlexLogic operands .......................................................................5-176
logic diagram ...................................................................................5-255
polarization .......................................................................................5-253
settings ...............................................................................................5-250
specifications ......................................................................................2-35
Neutral IOC
FlexLogic operands .......................................................................5-176
logic diagram ...................................................................................5-250
settings ...............................................................................................5-249
specifications ......................................................................................2-34
Neutral overvoltage
FlexLogic operands .......................................................................5-176
logic diagram ...................................................................................5-286
settings ...............................................................................................5-285
specifications ......................................................................................2-37
Neutral TOC
FlexLogic operands .......................................................................5-176
logic diagram ...................................................................................5-249
settings ...............................................................................................5-248
specifications ......................................................................................2-34
L90 LINE CURRENT DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL
....................................................5-331
Non-volatile latches
FlexLogic operands .......................................................................5-175
settings ...............................................................................................5-194
specifications ..................................................................................... 2-41
NOR gate explained
........................................................................... 4-53
NOT gate explained
........................................................................... 4-53
O
Obtain list of port numbers
One-shot
commands menu, PMU ....................................................................7-4
error compiling in Engineer ......................................................... 4-40
FlexLogic operators ......................................................................5-184
Open pole detector
FlexLogic operands .......................................................................5-176
logic diagrams .................................................................................5-348
settings ...............................................................................................5-346
specifications ..................................................................................... 2-40
Operating temperature ................................................................... 2-50
Operating times
................................................................................... 2-31
Operator command to force logoff
OR gate explained
.............................................................................. 4-53
Order codes
............................................................................................ 2-11
actual values ...................................................................................... 6-33
update ..........................................................................................3-57, 7-3
Oscillatory transient testing specifications
Oscillography
actual values ...................................................................................... 6-31
clearing ........................................................................................5-28, 7-2
settings ...............................................................................................5-102
specifications ..................................................................................... 2-42
via EnerVista software ......................................................................4-2
Out of service
...........................................................................................5-1
Out-of-step tripping
.............................................................2-39, 5-227
Outputs
contact outputs ..............................................................................5-395
control power specifications ...................................................... 2-47
critical failure relay specifications ............................................ 2-46
direct outputs ...................................................................................5-400
Fast form-C relay specifications ............................................... 2-47
Form-A relay ........................................................................... 2-46, 3-14
Form-C relay ....................................................................................... 3-14
Form-C relay specifications ........................................................ 2-46
latching output specifications ................................................... 2-46
latching outputs ..............................................................................5-396
virtual outputs .................................................................................5-399
Overcurrent curve types
...............................................................5-236
Overcurrent curves
FlexCurves .........................................................................................5-241
IAC .........................................................................................................5-239
IEC .........................................................................................................5-237
Overfrequency
FlexLogic operands .......................................................................5-176
logic diagram ...................................................................................5-320
settings ...............................................................................................5-320
specifications ..................................................................................... 2-38
........................................................... 5-32
.............................................7-6
.......................... 2-51
ix