GE 745 TRANSFORMER MANAGEMENT RELAY

GE Power Management 745 Transformer Management Relay
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TABLE OF CONTENTS
6.1.2 ACTUAL VALUES ORGANIZATION......................................................... 6-1
6.2 A1 STATUS
6.2.1 DESCRIPTION .......................................................................................... 6-2
6.2.2 DATE AND TIME ....................................................................................... 6-2
6.2.3 LOGIC INPUTS.......................................................................................... 6-2
6.2.4 VIRTUAL INPUTS...................................................................................... 6-2
6.2.5 OUTPUT RELAYS..................................................................................... 6-3
6.2.6 VIRTUAL OUTPUTS.................................................................................. 6-3
6.2.7 SELF-TEST ERRORS............................................................................... 6-3
6.3 A2 METERING
6.3.1 DESCRIPTION .......................................................................................... 6-4
6.3.2 CURRENT ................................................................................................. 6-4
a WINDING 1/2/3 CURRENTS..................................................................... 6-4
b POSITIVE SEQUENCE CURRENTS ........................................................ 6-5
c NEGATIVE SEQUENCE CURRENTS....................................................... 6-5
d ZERO SEQUENCE CURRENTS............................................................... 6-5
e DIFFERENTIAL CURRENT....................................................................... 6-6
f RESTRAINT CURRENT............................................................................ 6-6
g
GROUND DIFFERENTIAL CURRENT...................................................... 6-6
6.3.3 HARMONIC CONTENT............................................................................. 6-7
a HARMONIC SUB-COMPONENTS............................................................ 6-7
b TOTAL HARMONIC DISTORTION (THD)................................................. 6-7
c HARMONIC DERATING FACTOR............................................................ 6-8
6.3.4 FREQUENCY ............................................................................................ 6-8
6.3.5 TAP CHANGER......................................................................................... 6-8
6.3.6 VOLTAGE.................................................................................................. 6-9
6.3.7 DEMAND ................................................................................................... 6-9
a DEMAND DATA CLEAR............................................................................ 6-9
b CURRENT DEMAND............................................................................... 6-10
6.3.8 AMBIENT TEMPERATURE..................................................................... 6-10
6.3.9 LOSS OF LIFE......................................................................................... 6-10
6.3.10 ANALOG INPUT...................................................................................... 6-11
6.3.11 POWER ................................................................................................... 6-11
6.3.12 ENERGY.................................................................................................. 6-12
a ENERGY DATA CLEAR .......................................................................... 6-12
b W1/W2/W3 ENERGY............................................................................... 6-12
6.4 A3 EVENT RECORDER
6.4.1 DESCRIPTION ........................................................................................ 6-13
6.4.2 EVENT DATA RESET ............................................................................. 6-13
6.4.3 EVENT RECORDS.................................................................................. 6-13
6.5 A4 PRODUCT INFO
6.5.1 DESCRIPTION ........................................................................................ 6-17
6.5.2 TECHNICAL SUPPORT.......................................................................... 6-17
6.5.3 REVISION CODES.................................................................................. 6-17
6.5.4 CALIBRATION......................................................................................... 6-18
6.6 TARGET MESSAGES
6.6.1 DESCRIPTION ........................................................................................ 6-19
6.7 SELF-TEST ERRORS
6.7.1 DESCRIPTION ........................................................................................ 6-21
6.7.2 MAJOR SELF-TEST ERRORS................................................................ 6-21
6.7.3 MINOR SELF-TEST ERRORS ................................................................ 6-21
6.8 FLASH MESSAGES
6.8.1 DESCRIPTION ........................................................................................ 6-23