
GE Multilin F60 Feeder Protection System vii
TABLE OF CONTENTS
5.2.17 DIRECT INPUTS/OUTPUTS ...........................................................................5-55
5.2.18 TELEPROTECTION.........................................................................................5-63
5.2.19 INSTALLATION................................................................................................5-63
5.3 SYSTEM SETUP
5.3.1 AC INPUTS......................................................................................................5-65
5.3.2 POWER SYSTEM............................................................................................5-66
5.3.3 SIGNAL SOURCES.........................................................................................5-67
5.3.4 BREAKERS......................................................................................................5-70
5.3.5 DISCONNECT SWITCHES .............................................................................5-74
5.3.6 FLEXCURVES™..............................................................................................5-77
5.4 FLEXLOGIC™
5.4.1 INTRODUCTION TO FLEXLOGIC™...............................................................5-84
5.4.2 FLEXLOGIC™ RULES ....................................................................................5-94
5.4.3 FLEXLOGIC™ EVALUATION..........................................................................5-94
5.4.4 FLEXLOGIC™ EXAMPLE ...............................................................................5-95
5.4.5 FLEXLOGIC™ EQUATION EDITOR...............................................................5-99
5.4.6 FLEXLOGIC™ TIMERS...................................................................................5-99
5.4.7 FLEXELEMENTS™ .......................................................................................5-101
5.4.8 NON-VOLATILE LATCHES ...........................................................................5-105
5.5 GROUPED ELEMENTS
5.5.1 OVERVIEW....................................................................................................5-106
5.5.2 SETTING GROUP .........................................................................................5-106
5.5.3 LOAD ENCROACHMENT..............................................................................5-107
5.5.4 PHASE CURRENT ........................................................................................5-109
5.5.5 NEUTRAL CURRENT....................................................................................5-119
5.5.6 WATTMETRIC GROUND FAULT..................................................................5-127
5.5.7 GROUND CURRENT.....................................................................................5-130
5.5.8 NEGATIVE-SEQUENCE CURRENT.............................................................5-132
5.5.9 BREAKER FAILURE......................................................................................5-138
5.5.10 VOLTAGE ELEMENTS.................................................................................. 5-147
5.5.11 SENSITIVE DIRECTIONAL POWER.............................................................5-155
5.6 CONTROL ELEMENTS
5.6.1 OVERVIEW....................................................................................................5-158
5.6.2 SETTING GROUPS.......................................................................................5-158
5.6.3 SELECTOR SWITCH.....................................................................................5-159
5.6.4 UNDERFREQUENCY.................................................................................... 5-165
5.6.5 OVERFREQUENCY ......................................................................................5-166
5.6.6 FREQUENCY RATE OF CHANGE................................................................5-167
5.6.7 SYNCHROCHECK.........................................................................................5-169
5.6.8 AUTORECLOSE............................................................................................5-173
5.6.9 DIGITAL ELEMENTS.....................................................................................5-179
5.6.10 DIGITAL COUNTERS....................................................................................5-182
5.6.11 MONITORING ELEMENTS ...........................................................................5-184
5.6.12 COLD LOAD PICKUP....................................................................................5-201
5.6.13 TRIP BUS....................................................................................................... 5-203
5.7 INPUTS/OUTPUTS
5.7.1 CONTACT INPUTS........................................................................................5-205
5.7.2 VIRTUAL INPUTS..........................................................................................5-207
5.7.3 CONTACT OUTPUTS....................................................................................5-208
5.7.4 VIRTUAL OUTPUTS......................................................................................5-210
5.7.5 REMOTE DEVICES.......................................................................................5-211
5.7.6 REMOTE INPUTS..........................................................................................5-212
5.7.7 REMOTE OUTPUTS......................................................................................5-213
5.7.8 RESETTING...................................................................................................5-214
5.7.9 DIRECT INPUTS/OUTPUTS .........................................................................5-214
5.7.10 TELEPROTECTION INPUTS/OUTPUTS......................................................5-218
5.8 TRANSDUCER INPUTS/OUTPUTS
5.8.1 DCMA INPUTS ..............................................................................................5-220
5.8.2 RTD INPUTS..................................................................................................5-221
5.8.3 DCMA OUTPUTS ..........................................................................................5-222
5.9 TESTING
5.9.1 TEST MODE..................................................................................................5-226
5.9.2 FORCE CONTACT INPUTS..........................................................................5-226
5.9.3 FORCE CONTACT OUTPUTS......................................................................5-227