GE L90 Instruction Manual page 7

GE Multilin
TABLE OF CONTENTS
5.2 PRODUCT SETUP
5.2.1 SECURITY ......................................................................................................... 5-8
5.2.2 DISPLAY PROPERTIES.................................................................................. 5-13
5.2.3 CLEAR RELAY RECORDS ............................................................................. 5-14
5.2.4 COMMUNICATIONS........................................................................................ 5-16
5.2.5 MODBUS USER MAP...................................................................................... 5-38
5.2.6 REAL TIME CLOCK......................................................................................... 5-38
5.2.7 FAULT REPORTS ........................................................................................... 5-39
5.2.8 OSCILLOGRAPHY .......................................................................................... 5-42
5.2.9 DATA LOGGER ............................................................................................... 5-44
5.2.10 DEMAND.......................................................................................................... 5-45
5.2.11 USER-PROGRAMMABLE LEDS..................................................................... 5-46
5.2.12 USER-PROGRAMMABLE SELF-TESTS ........................................................ 5-50
5.2.13 CONTROL PUSHBUTTONS ........................................................................... 5-50
5.2.14 USER-PROGRAMMABLE PUSHBUTTONS ................................................... 5-52
5.2.15 FLEX STATE PARAMETERS .......................................................................... 5-57
5.2.16 USER-DEFINABLE DISPLAYS ....................................................................... 5-58
5.2.17 INSTALLATION................................................................................................ 5-60
5.3 REMOTE RESOURCES
5.3.1 REMOTE RESOURCES CONFIGURATION ................................................... 5-61
5.4 SYSTEM SETUP
5.4.1 AC INPUTS ...................................................................................................... 5-62
5.4.2 POWER SYSTEM............................................................................................ 5-63
5.4.3 SIGNAL SOURCES ......................................................................................... 5-64
5.4.4 L90 POWER SYSTEM..................................................................................... 5-67
5.4.5 BREAKERS...................................................................................................... 5-72
5.4.6 DISCONNECT SWITCHES ............................................................................. 5-76
5.4.7 FLEXCURVES™.............................................................................................. 5-79
5.4.8 PHASOR MEASUREMENT UNIT.................................................................... 5-86
5.5 FLEXLOGIC™
5.5.1 INTRODUCTION TO FLEXLOGIC™ ............................................................. 5-105
5.5.2 FLEXLOGIC™ RULES .................................................................................. 5-117
5.5.3 FLEXLOGIC™ EVALUATION........................................................................ 5-117
5.5.4 FLEXLOGIC™ EXAMPLE ............................................................................. 5-118
5.5.5 FLEXLOGIC™ EQUATION EDITOR ............................................................. 5-122
5.5.6 FLEXLOGIC™ TIMERS................................................................................. 5-122
5.5.7 FLEXELEMENTS™ ....................................................................................... 5-123
5.5.8 NON-VOLATILE LATCHES ........................................................................... 5-127
5.6 GROUPED ELEMENTS
5.6.1 OVERVIEW.................................................................................................... 5-128
5.6.2 SETTING GROUP ......................................................................................... 5-128
5.6.3 LINE DIFFERENTIAL ELEMENT................................................................... 5-129
5.6.4 LINE PICKUP................................................................................................. 5-134
5.6.5 DISTANCE ..................................................................................................... 5-136
5.6.6 POWER SWING DETECT ............................................................................. 5-154
5.6.7 LOAD ENCROACHMENT.............................................................................. 5-163
5.6.8 PHASE CURRENT ........................................................................................ 5-165
5.6.9 NEUTRAL CURRENT.................................................................................... 5-175
5.6.10 WATTMETRIC GROUND FAULT .................................................................. 5-183
5.6.11 GROUND CURRENT..................................................................................... 5-186
5.6.12 NEGATIVE SEQUENCE CURRENT ............................................................. 5-188
5.6.13 BREAKER FAILURE ...................................................................................... 5-194
5.6.14 VOLTAGE ELEMENTS .................................................................................. 5-203
5.6.15 SENSITIVE DIRECTIONAL POWER............................................................. 5-209
5.6.16 SUPERVISING ELEMENTS .......................................................................... 5-213
5.7 CONTROL ELEMENTS
5.7.1 OVERVIEW.................................................................................................... 5-217
5.7.2 TRIP BUS....................................................................................................... 5-217
5.7.3 SETTING GROUPS ....................................................................................... 5-219
5.7.4 SELECTOR SWITCH..................................................................................... 5-220
5.7.5 TRIP OUTPUT ............................................................................................... 5-226
5.7.6 UNDERFREQUENCY.................................................................................... 5-232
5.7.7 OVERFREQUENCY ...................................................................................... 5-233
5.7.8 FREQUENCY RATE OF CHANGE................................................................ 5-234
5.7.9 SYNCHROCHECK......................................................................................... 5-236
L90 Line Current Differential System vii