GE M60

6-16 M60 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL
METERING CHAPTER 6: ACTUAL VALUES
6
6.4.2 Stator differential
ACTUAL VALUES  METERING  STATOR DIFFERENTIAL  STATOR DIFFERENTIAL
The phasors of differential and restraint currents are displayed in primary amperes.
6.4.3 Motor
ACTUAL VALUES  METERING  MOTOR
There are three metered values available for the motor.
MOTOR LOAD — This value represents the measured three phase average RMS current from the line source divided by the
Full Load Amps setting, in per unit.
MOTOR UNBALANCE — This value is the amount of unbalance in the motor currents. An explanation of the calculation of this
value is presented for the AMP Unbalance element.
U/B BIASED MOTOR LOAD — Unbalance Bias Motor Load shows the equivalent motor heating current caused by the
unbalance k factor.
6.4.4 Sources
6.4.4.1 Menu
ACTUAL VALUES  METERING  SOURCE SRC 1
 STATOR
 DIFFERENTIAL

STATOR DIFF OPERATE
Iad: 0.00 A

STATOR DIFF RESTRAIN
Iar: 0.00 A

STATOR DIFF OPERATE
Ibd: 0.00 A

STATOR DIFF RESTRAIN
Iar: 0.00 A

STATOR DIFF OPERATE
Icd: 0.00 A

STATOR DIFF RESTRAIN
Icr: 0.00 A
 MOTOR


MOTOR LOAD:
0.00 x FLA

CURRENT UNBALANCE:
0%

U/B BIASED MOTOR
LOAD: 0.00 x FLA
 SOURCE SRC 1


 PHASE CURRENT
 SRC 1
See below

 GROUND CURRENT
 SRC 1
See page 6-17

 PHASE VOLTAGE
 SRC 1
See page 6-18

 AUXILIARY VOLTAGE
 SRC 1
See page 6-18