GE G30 Instruction Manual page 6

Generator protection system 7.4x
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5.6.3
FlexLogic evaluation...................................................................................................... 5-166
5.6.4
FlexLogic example.......................................................................................................... 5-167
5.6.5
FlexLogic equation editor............................................................................................ 5-172
5.6.6
FlexLogic timers............................................................................................................... 5-172
5.6.7
FlexElements ..................................................................................................................... 5-172
5.6.8
Non-volatile latches....................................................................................................... 5-176
5.7
Grouped elements .......................................................................................5-177
5.7.1
Overview ............................................................................................................................. 5-177
5.7.2
Setting group 1................................................................................................................. 5-178
5.7.3
Transformer....................................................................................................................... 5-178
5.7.4
Phase current ................................................................................................................... 5-186
5.7.5
Neutral current................................................................................................................. 5-198
5.7.6
Ground current ................................................................................................................ 5-206
5.7.7
Negative sequence current........................................................................................ 5-213
5.7.8
Generator unbalance (ANSI 46)................................................................................ 5-217
5.7.9
Split phase protection (ANSI 50SP).......................................................................... 5-219
5.7.10
Voltage elements ............................................................................................................ 5-223
5.7.11
Loss of excitation (ANSI 40) ........................................................................................ 5-235
5.7.12
Accidental energization (ANSI 50/27) .................................................................... 5-237
5.7.13
Sensitive directional power (ANSI 32) .................................................................... 5-239
5.7.14
Stator ground.................................................................................................................... 5-242
5.8
Control elements .........................................................................................5-244
5.8.1
Overview ............................................................................................................................. 5-244
5.8.2
Trip bus ................................................................................................................................ 5-245
5.8.3
Setting groups .................................................................................................................. 5-247
5.8.4
Selector switch................................................................................................................. 5-248
5.8.5
Underfrequency (ANSI 81U)........................................................................................ 5-255
5.8.6
Overfrequency (ANSI 81O) .......................................................................................... 5-256
5.8.7
Frequency rate of change (ANSI 81R).................................................................... 5-257
5.8.8
Frequency out-of-band accumulation ................................................................. 5-259
5.8.9
Synchrocheck (ANSI 25) ............................................................................................... 5-260
5.8.10
Digital elements............................................................................................................... 5-266
5.8.11
Digital counters................................................................................................................ 5-269
5.8.12
Monitoring elements ..................................................................................................... 5-271
5.9
Inputs/outputs .............................................................................................5-280
5.9.1
Contact inputs .................................................................................................................. 5-280
5.9.2
Virtual inputs ..................................................................................................................... 5-282
5.9.3
Contact outputs............................................................................................................... 5-283
5.9.4
Virtual outputs.................................................................................................................. 5-287
5.9.5
Resetting ............................................................................................................................. 5-287
5.9.6
Direct inputs and outputs ........................................................................................... 5-287
5.9.7
Teleprotection................................................................................................................... 5-291
5.10 Transducer inputs/outputs........................................................................5-293
5.10.1
DCmA inputs...................................................................................................................... 5-293
5.10.2
RTD inputs .......................................................................................................................... 5-294
5.10.3
DCmA outputs .................................................................................................................. 5-295
5.11 Testing ...........................................................................................................5-299
5.11.1
Test mode function ........................................................................................................ 5-299
5.11.2
Test mode forcing........................................................................................................... 5-299
5.11.3
Force contact inputs ..................................................................................................... 5-300
5.11.4
Force contact outputs .................................................................................................. 5-300
6.1
Actual Values menu......................................................................................... 6-1
6.2
Front panel........................................................................................................ 6-3
G30 GENERATOR PROTECTION SYSTEM - INSTRUCTION MANUAL
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