GE Multilin g60

GE Multilin G60 Generator Protection System vii
TABLE OF CONTENTS
5.2.6 REAL TIME CLOCK......................................................................................... 5-40
5.2.7 USER-PROGRAMMABLE FAULT REPORT................................................... 5-41
5.2.8 OSCILLOGRAPHY .......................................................................................... 5-42
5.2.9 DATA LOGGER ............................................................................................... 5-44
5.2.10 USER-PROGRAMMABLE LEDS..................................................................... 5-46
5.2.11 USER-PROGRAMMABLE SELF TESTS......................................................... 5-49
5.2.12 CONTROL PUSHBUTTONS ........................................................................... 5-49
5.2.13 USER-PROGRAMMABLE PUSHBUTTONS ................................................... 5-51
5.2.14 FLEX STATE PARAMETERS.......................................................................... 5-56
5.2.15 USER-DEFINABLE DISPLAYS ....................................................................... 5-57
5.2.16 DIRECT INPUTS/OUTPUTS ........................................................................... 5-59
5.2.17 TELEPROTECTION......................................................................................... 5-67
5.2.18 INSTALLATION................................................................................................ 5-67
5.3 REMOTE RESOURCES
5.3.1 REMOTE RESOURCES CONFIGURATION ................................................... 5-69
5.4 SYSTEM SETUP
5.4.1 AC INPUTS ...................................................................................................... 5-70
5.4.2 POWER SYSTEM............................................................................................ 5-71
5.4.3 SIGNAL SOURCES ......................................................................................... 5-72
5.4.4 BREAKERS...................................................................................................... 5-75
5.4.5 DISCONNECT SWITCHES ............................................................................. 5-79
5.4.6 FLEXCURVES ................................................................................................. 5-82
5.4.7 PHASOR MEASUREMENT UNIT.................................................................... 5-89
5.5 FLEXLOGIC™
5.5.1 INTRODUCTION TO FLEXLOGIC™............................................................. 5-107
5.5.2 FLEXLOGIC™ RULES .................................................................................. 5-118
5.5.3 FLEXLOGIC™ EVALUATION........................................................................ 5-119
5.5.4 FLEXLOGIC™ EXAMPLE ............................................................................. 5-119
5.5.5 FLEXLOGIC™ EQUATION EDITOR ............................................................. 5-124
5.5.6 FLEXLOGIC™ TIMERS................................................................................. 5-124
5.5.7 FLEXELEMENTS™ ....................................................................................... 5-125
5.5.8 NON-VOLATILE LATCHES ........................................................................... 5-129
5.6 GROUPED ELEMENTS
5.6.1 OVERVIEW.................................................................................................... 5-130
5.6.2 SETTING GROUP ......................................................................................... 5-130
5.6.3 DISTANCE ..................................................................................................... 5-131
5.6.4 POWER SWING DETECT ............................................................................. 5-139
5.6.5 STATOR DIFFERENTIAL .............................................................................. 5-147
5.6.6 PHASE CURRENT ........................................................................................ 5-150
5.6.7 NEUTRAL CURRENT.................................................................................... 5-161
5.6.8 GROUND CURRENT..................................................................................... 5-168
5.6.9 NEGATIVE SEQUENCE CURRENT ............................................................. 5-175
5.6.10 GENERATOR UNBALANCE ......................................................................... 5-179
5.6.11 SPLIT PHASE PROTECTION ....................................................................... 5-181
5.6.12 VOLTAGE ELEMENTS.................................................................................. 5-185
5.6.13 LOSS OF EXCITATION ................................................................................. 5-196
5.6.14 ACCIDENTAL ENERGIZATION .................................................................... 5-198
5.6.15 SENSITIVE DIRECTIONAL POWER............................................................. 5-200
5.6.16 STATOR GROUND........................................................................................ 5-203
5.6.17 FIELD GROUND FAULT PROTECTION ....................................................... 5-212
5.7 CONTROL ELEMENTS
5.7.1 OVERVIEW.................................................................................................... 5-218
5.7.2 TRIP BUS....................................................................................................... 5-218
5.7.3 SETTING GROUPS ....................................................................................... 5-220
5.7.4 SELECTOR SWITCH..................................................................................... 5-221
5.7.5 UNDERFREQUENCY.................................................................................... 5-227
5.7.6 OVERFREQUENCY ...................................................................................... 5-228
5.7.7 FREQUENCY RATE OF CHANGE................................................................ 5-229
5.7.8 FREQUENCY OUT-OF-BAND ACCUMULATION ......................................... 5-231
5.7.9 SYNCHROCHECK......................................................................................... 5-233
5.7.10 DIGITAL ELEMENTS..................................................................................... 5-238
5.7.11 DIGITAL COUNTERS .................................................................................... 5-241
5.7.12 MONITORING ELEMENTS ........................................................................... 5-243