Transformer - GE T60 Instruction Manual

6.3 METERING
a) DIFFERENTIAL AND RESTRAINT CURRENTS
PATH: ACTUAL VALUES
 DIFFERENTIAL AND
 RESTRAINT
6
The metered differential current, restraint current, second harmonic current, and fifth harmonic current are displayed for
each phase. Refer to the Percent differential section in chapter 5 for details on how these values are calculated.
If differential current in any phase is below the hard-coded cutoff of 0.04 pu, then the differential, 2nd harmonic, and 5th
harmonic currents are forced to zero.
b) THERMAL ELEMENTS
PATH: ACTUAL VALUES
 THERMAL
 ELEMENTS
6-16
 
METERING

TRANSFORMER

REFERENCE WINDING:
Winding 1
DIFF PHASOR Iad:
MESSAGE
0.000 pu
REST PHASOR Iar:
MESSAGE
0.000 pu
DIFF 2ND HARM Iad:
MESSAGE
0.0% fo
DIFF 5TH HARM Iad:
MESSAGE
0.0% fo
DIFF PHASOR Ibd:
MESSAGE
0.000 pu
REST PHASOR Ibr:
MESSAGE
0.000 pu
DIFF 2ND HARM Ibd:
MESSAGE
0.0% fo
DIFF 5TH HARM Ibd:
MESSAGE
0.0% fo
DIFF PHASOR Icd:
MESSAGE
0.000 pu
REST PHASOR Icr:
MESSAGE
0.000 pu
DIFF 2ND HARM Icd:
MESSAGE
0.0% fo
DIFF 5TH HARM Icd:
MESSAGE
0.0% fo
 
METERING TRANSFORMER
TOP OIL °C:
70°C
HOTTEST-SPOT °C:
MESSAGE
130°
AGING FACTOR:
MESSAGE
1.2
DAILY RATE LOL:
MESSAGE
15 hrs
T60 Transformer Protection System

DIFFERENTIAL AND RESTRAINT
0.0°
0.0°
0.0°
0.0°
0.0°
0.0°
0.0°
0.0°
0.0°
0.0°
0.0°
0.0°

THERMAL ELEMENTS
6 ACTUAL VALUES
6.3.2 TRANSFORMER
GE Multilin