
GE Multilin T60 Transformer Protection System vii
TABLE OF CONTENTS
5.2.14 USER-PROGRAMMABLE PUSHBUTTONS...................................................5-49
5.2.15 FLEX STATE PARAMETERS.......................................................................... 5-54
5.2.16 USER-DEFINABLE DISPLAYS .......................................................................5-55
5.2.17 DIRECT INPUTS AND OUTPUTS...................................................................5-57
5.2.18 TELEPROTECTION.........................................................................................5-65
5.2.19 INSTALLATION................................................................................................5-66
5.3 REMOTE RESOURCES
5.3.1 REMOTE RESOURCES CONFIGURATION...................................................5-67
5.4 SYSTEM SETUP
5.4.1 AC INPUTS...................................................................................................... 5-68
5.4.2 POWER SYSTEM............................................................................................5-70
5.4.3 SIGNAL SOURCES.........................................................................................5-71
5.4.4 TRANSFORMER ............................................................................................. 5-73
5.4.5 BREAKERS......................................................................................................5-85
5.4.6 DISCONNECT SWITCHES .............................................................................5-89
5.4.7 FLEXCURVES™..............................................................................................5-92
5.5 FLEXLOGIC™
5.5.1 INTRODUCTION TO FLEXLOGIC™...............................................................5-99
5.5.2 FLEXLOGIC™ RULES ..................................................................................5-109
5.5.3 FLEXLOGIC™ EVALUATION........................................................................5-109
5.5.4 FLEXLOGIC™ EXAMPLE .............................................................................5-110
5.5.5 FLEXLOGIC™ EQUATION EDITOR.............................................................5-114
5.5.6 FLEXLOGIC™ TIMERS................................................................................. 5-114
5.5.7 FLEXELEMENTS™ .......................................................................................5-115
5.5.8 NON-VOLATILE LATCHES ........................................................................... 5-119
5.6 GROUPED ELEMENTS
5.6.1 OVERVIEW....................................................................................................5-120
5.6.2 SETTING GROUP .........................................................................................5-120
5.6.3 DISTANCE..................................................................................................... 5-121
5.6.4 POWER SWING DETECT.............................................................................5-139
5.6.5 LOAD ENCROACHMENT.............................................................................. 5-148
5.6.6 TRANSFORMER ELEMENTS....................................................................... 5-150
5.6.7 PHASE CURRENT ........................................................................................5-158
5.6.8 NEUTRAL CURRENT....................................................................................5-170
5.6.9 GROUND CURRENT..................................................................................... 5-178
5.6.10 BREAKER FAILURE......................................................................................5-185
5.6.11 VOLTAGE ELEMENTS..................................................................................5-193
5.7 CONTROL ELEMENTS
5.7.1 OVERVIEW....................................................................................................5-202
5.7.2 TRIP BUS.......................................................................................................5-202
5.7.3 SETTING GROUPS.......................................................................................5-204
5.7.4 SELECTOR SWITCH.....................................................................................5-205
5.7.5 UNDERFREQUENCY....................................................................................5-211
5.7.6 OVERFREQUENCY ......................................................................................5-212
5.7.7 SYNCHROCHECK.........................................................................................5-213
5.7.8 DIGITAL ELEMENTS..................................................................................... 5-217
5.7.9 DIGITAL COUNTERS....................................................................................5-220
5.7.10 MONITORING ELEMENTS ........................................................................... 5-222
5.8 INPUTS/OUTPUTS
5.8.1 CONTACT INPUTS........................................................................................5-226
5.8.2 VIRTUAL INPUTS..........................................................................................5-228
5.8.3 CONTACT OUTPUTS.................................................................................... 5-229
5.8.4 VIRTUAL OUTPUTS...................................................................................... 5-231
5.8.5 REMOTE DEVICES.......................................................................................5-232
5.8.6 REMOTE INPUTS..........................................................................................5-233
5.8.7 REMOTE DOUBLE-POINT STATUS INPUTS .............................................. 5-234
5.8.8 REMOTE OUTPUTS...................................................................................... 5-234
5.8.9 RESETTING...................................................................................................5-235
5.8.10 DIRECT INPUTS AND OUTPUTS.................................................................5-236
5.8.11 TELEPROTECTION INPUTS AND OUTPUTS.............................................. 5-239
5.8.12 IEC 61850 GOOSE ANALOGS...................................................................... 5-241
5.8.13 IEC 61850 GOOSE INTEGERS..................................................................... 5-242
5.9 TRANSDUCER INPUTS AND OUTPUTS
5.9.1 DCMA INPUTS ..............................................................................................5-243