A2 Metering Data; Current Metering - GE 469 Instruction Manual

5 ACTUAL VALUES

5.3A2 METERING DATA

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PATH: ACTUAL VALUES
n CURRENT METERING
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All measured current values are displayed here. The
positive-sequence current, I
FLA, unbalance is defined as I
motor is lightly loaded. The
unbalance k factor.
GE Multilin
Courtesy of NationalSwitchgear.com
Õ
A2 METERING DATA

CURRENT METERING

ð
A: 0
ENTER
ESCAPE C: 0 Amps
AVERAGE PHASE
ESCAPE
CURRENT: 0 Amps
MESSAGE
MOTOR LOAD:
ESCAPE
0.00 x FLA
MESSAGE
CURRENT UNBALANCE:
ESCAPE
0%
MESSAGE
U/B BIASED MOTOR
ESCAPE
LOAD: 0.00 x FLA
MESSAGE
GROUND CURRENT:
ESCAPE
MESSAGE 0.0 Amps
GROUND CURRENT:
ESCAPE
0.00 Amps
MESSAGE
A: 0
ESCAPE
C: 0 Amps Diff.
MESSAGE
CURRENT UNBALANCE
/ I when the motor is operating at a load ( I
2 1
/ I × I / FLA. This derating is necessary to prevent nuisance alarms and trips when a
2 1 avg
value shows the equivalent motor heating current caused by the
U/B BIASED MOTOR LOAD
469 Motor Management Relay
Range: 0 to 100000 A
B: 0
Range: 0 to 100000 A
Range: 0.00 to 20.00 x FLA
Range: 0 to 99.99%
Range: 0.00 to 20.00 x FLA
Range: 0.0 to 5000.0 A
Seen only if Ground CT has 1 A or 5 A secondary
Range: 0.00 to 25.00 A
Seen only if Ground CT is 50:0.025
Range: 0 to 5000 A
B: 0
is defined as the ratio of negative-sequence to
) greater than FLA. If the motor I
avg
5.3 A2 METERING DATA
5.3.1 CURRENT METERING
is less than
avg
5-9
5