GE Multilin 745

A3 Event Recorder
745
Transformer Management Relay
Actual Values
http://www.GEindustrial.com/multilin
6–15
GE Multilin
The event record runs continuously, capturing and storing conditions present at the
moment of occurrence of the last 128 events, as well as the time and date of each
event. The header message for each event contains two pieces of information: the
event number (higher numbers denote more recent events) and the event date. If
the event record is clear or if the date has never been programmed, “Unavailable” is
displayed instead of a date. No more than 128 events are stored at the same time.
MESSAGE
PHASE C DIFFERENTIAL
CURRENT: 0.00 x CT
MESSAGE
PHASE A RESTRAINT
CURRENT: 0.00 x CT
MESSAGE
PHASE B RESTRAINT
CURRENT: 0.00 x CT
MESSAGE
PHASE C RESTRAINT
CURRENT: 0.00 x CT
MESSAGE
SYSTEM FREQUENCY:
0.00 Hz
MESSAGE
FREQUENCY DECAY
RATE: 0.00 Hz/s
MESSAGE
TAP CHANGER
POSITION: n/a
MESSAGE
VOLTS-PER-HERTZ:
0.00 V/Hz
MESSAGE
AMBIENT TEMPERATURE:
0°C
MESSAGE
ANALOG INPUT:
0 µA
Table 6–1: Types and Causes of Events
PICKUP / OPERATE / DROPOUT Events
Percent Differential Inst Differential W1 Phase Time OC
W2 Phase Time OC W3 Phase Time OC W1 Phase Inst OC 1
W2 Phase Inst OC 1 W3 Phase Inst OC 1 W1 Phase Inst OC 2
W2 Phase Inst OC 2 W3 Phase Inst OC 2 W1 Neutral Time OC
W2 Neutral Time OC W3 Neutral Time OC W1 Neutral Inst OC 1
W2 Neutral Inst OC 1 W3 Neutral Inst OC 1 W1 Neutral Inst OC 2
W2 Neutral Inst OC 2 W3 Neutral Inst OC 2 W1 Ground Time OC
W2 Ground Time OC W3 Ground Time OC W1 Ground Inst OC 1
W2 Ground Inst OC 1 W3 Ground Inst OC 1 W1 Ground Inst OC 2
W2 Ground Inst OC 2 W3 Ground Inst OC 2 W1 Restd Gnd Fault
W2 Restd Gnd Fault W3 Restd Gnd Fault W1 Neg Seq Time OC
W2 Neg Seq Time OC W3 Neg Seq Time OC W1 Neg Seq Inst OC
W2 Neg Seq Inst OC W3 Neg Seq Inst OC Underfrequency 1
Underfrequency 2 Frequency Decay 1 Frequency Decay 2
Frequency Decay 3 Frequency Decay 4 Overfrequency
5th Harmonic Level Volts-Per-Hertz 1 Volts-Per-Hertz 2
W1 THD Level W2 THD Level W3 THD Level
W1 Harmonic Derating W2 Harmonic Derating W3 Harmonic Derating
Analog Level 1 Analog Level 2 W1 Current Demand
W2 Current Demand W3 Current Demand Transformer Overload