GE Multilin G60 Generator Protection System v
TABLE OF CONTENTS
5.2.12 CONTROL PUSHBUTTONS ........................................................................... 5-72
5.2.13 USER-PROGRAMMABLE PUSHBUTTONS ................................................... 5-74
5.2.14 FLEX STATE PARAMETERS.......................................................................... 5-80
5.2.15 USER-DEFINABLE DISPLAYS ....................................................................... 5-80
5.2.16 DIRECT INPUTS/OUTPUTS ........................................................................... 5-83
5.2.17 TELEPROTECTION......................................................................................... 5-90
5.2.18 INSTALLATION................................................................................................ 5-91
5.3 REMOTE RESOURCES
5.3.1 REMOTE RESOURCES CONFIGURATION................................................... 5-92
5.4 SYSTEM SETUP
5.4.1 AC INPUTS...................................................................................................... 5-93
5.4.2 POWER SYSTEM............................................................................................ 5-94
5.4.3 SIGNAL SOURCES ......................................................................................... 5-95
5.4.4 BREAKERS...................................................................................................... 5-99
5.4.5 DISCONNECT SWITCHES ........................................................................... 5-103
5.4.6 FLEXCURVES ............................................................................................... 5-106
5.4.7 PHASOR MEASUREMENT UNIT.................................................................. 5-113
5.5 FLEXLOGIC
5.5.1 INTRODUCTION TO FLEXLOGIC ................................................................ 5-136
5.5.2 FLEXLOGIC RULES...................................................................................... 5-147
5.5.3 FLEXLOGIC EVALUATION ........................................................................... 5-148
5.5.4 FLEXLOGIC EXAMPLE ................................................................................. 5-148
5.5.5 FLEXLOGIC EQUATION EDITOR................................................................. 5-153
5.5.6 FLEXLOGIC TIMERS .................................................................................... 5-153
5.5.7 FLEXELEMENTS........................................................................................... 5-154
5.5.8 NON-VOLATILE LATCHES ........................................................................... 5-158
5.6 GROUPED ELEMENTS
5.6.1 OVERVIEW.................................................................................................... 5-159
5.6.2 SETTING GROUP ......................................................................................... 5-159
5.6.3 DISTANCE..................................................................................................... 5-160
5.6.4 POWER SWING DETECT............................................................................. 5-168
5.6.5 STATOR DIFFERENTIAL.............................................................................. 5-176
5.6.6 PHASE CURRENT ........................................................................................ 5-179
5.6.7 NEUTRAL CURRENT.................................................................................... 5-189
5.6.8 GROUND CURRENT..................................................................................... 5-196
5.6.9 NEGATIVE SEQUENCE CURRENT ............................................................. 5-203
5.6.10 GENERATOR UNBALANCE ......................................................................... 5-207
5.6.11 SPLIT PHASE PROTECTION ....................................................................... 5-209
5.6.12 BREAKER FAILURE...................................................................................... 5-214
5.6.13 VOLTAGE ELEMENTS.................................................................................. 5-222
5.6.14 LOSS OF EXCITATION................................................................................. 5-233
5.6.15 ACCIDENTAL ENERGIZATION .................................................................... 5-235
5.6.16 SENSITIVE DIRECTIONAL POWER............................................................. 5-237
5.6.17 STATOR GROUND........................................................................................ 5-240
5.6.18 FIELD GROUND FAULT PROTECTION ....................................................... 5-249
5.7 CONTROL ELEMENTS
5.7.1 OVERVIEW.................................................................................................... 5-255
5.7.2 TRIP BUS....................................................................................................... 5-255
5.7.3 SETTING GROUPS ....................................................................................... 5-257
5.7.4 SELECTOR SWITCH..................................................................................... 5-259
5.7.5 UNDERFREQUENCY.................................................................................... 5-265
5.7.6 OVERFREQUENCY ...................................................................................... 5-266
5.7.7 FREQUENCY RATE OF CHANGE................................................................ 5-267
5.7.8 FREQUENCY OUT-OF-BAND ACCUMULATION......................................... 5-269
5.7.9 SYNCHROCHECK......................................................................................... 5-271
5.7.10 DIGITAL ELEMENTS..................................................................................... 5-276
5.7.11 DIGITAL COUNTERS .................................................................................... 5-279
5.7.12 MONITORING ELEMENTS ........................................................................... 5-281
5.8 INPUTS/OUTPUTS
5.8.1 CONTACT INPUTS........................................................................................ 5-292
5.8.2 VIRTUAL INPUTS.......................................................................................... 5-294
5.8.3 CONTACT OUTPUTS.................................................................................... 5-295
5.8.4 VIRTUAL OUTPUTS...................................................................................... 5-297
5.8.5 REMOTE DEVICES....................................................................................... 5-298
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