GE Multilin 489 - Page 313

INDEX
469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL I–9
voltage input accuracy..................................................................................... 7-4
voltage phase reversal ....................................................................................7-14
TEXT SETPOINTS ..............................................................................................1-15
THERMAL CAPACITY USED............................................................................... 6-4
THERMAL ELEMENTS .......................................................................................5-89
THERMAL MODEL
machine cooling ..............................................................................................5-85
setpoints ..........................................................................................................5-70
specifications ..................................................................................................2-10
unbalance bias ................................................................................................5-84
THERMAL RESET...............................................................................................5-23
THIRD HARMONIC VOLTAGE ........................................................................... A-6
TIME..........................................................................................................5-13, 6-15
TIME OVERCURRENT CURVES........................................................................ A-15
TIMERS ..............................................................................................................6-27
TOC CHARACTERISTICS...................................................................................5-29
TOC CURVES.................................................................................................... A-15
TRIP COIL MONITOR ........................................................................................5-91
TRIP COIL SUPERVISION ..........................................................................2-13, 7-9
TRIP COUNTER ............................................................................... 5-17, 5-90, 6-25
TRIP PICKUPS .................................................................................................... 6-9
TRIP RELAY ..............................................................................................3-16, 5-28
TRIP TIME ON OVERLOAD, ESTIMATED........................................................... 6-4
TRIPS .................................................................................................................. 5-6
TYPE TESTS .......................................................................................................2-15
TYPICAL WIRING DIAGRAM.............................................................................. 3-9
U
UNBALANCE BIAS ............................................................................................5-84
UNDERFREQUENCY .........................................................................................5-49
UNDERVOLTAGE .....................................................................................2-11, 5-43
UNPACKING THE RELAY ................................................................................... 1-1
UPGRADING FIRMWARE..................................................................................4-30
V
VIBRATION ........................................................................................................3-14
VOLTAGE DEPENDENT OVERLOAD CURVE ...................................................5-77
VOLTAGE INPUTS
description.......................................................................................................3-14
specifications ................................................................................................... 2-6
testing .............................................................................................................. 7-4
VOLTAGE METERING........................................................................................6-17
VOLTAGE RESTRAINED OVERCURRENT
setpoints ..........................................................................................................5-35
testing .............................................................................................................7-20
VOLTAGE SENSING ..........................................................................................5-18
VOLTS/HERTZ ...................................................................................................5-45
VT FUSE FAILURE .............................................................................................5-92
VT RATIO ...........................................................................................................5-18
VTFF ..................................................................................................................5-92
VTs
open delta .......................................................................................................5-54
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