Transformer - GE t60 Instruction Manual

6 ACTUAL VALUES
a) DIFFERENTIAL AND RESTRAINT CURRENTS
PATH: ACTUAL VALUES METERING
DIFFERENTIAL AND
RESTRAINT
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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.
b) THERMAL ELEMENTS
PATH: ACTUAL VALUES METERING
THERMAL
ELEMENTS
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GE Multilin

TRANSFORMER

DIFFERENTIAL AND RESTRAINT
REFERENCE WINDING:
Winding 1
DIFF PHASOR Iad:
0.000 pu 0.0°
REST PHASOR Iar:
0.000 pu 0.0°
DIFF 2ND HARM Iad:
0.0% fo 0.0°
DIFF 5TH HARM Iad:
0.0% fo 0.0°
DIFF PHASOR Ibd:
0.000 pu 0.0°
REST PHASOR Ibr:
0.000 pu 0.0°
DIFF 2ND HARM Ibd:
0.0% fo 0.0°
DIFF 5TH HARM Ibd:
0.0% fo 0.0°
DIFF PHASOR Icd:
0.000 pu 0.0°
REST PHASOR Icr:
0.000 pu 0.0°
DIFF 2ND HARM Icd:
0.0% fo 0.0°
DIFF 5TH HARM Icd:
0.0% fo 0.0°
TRANSFORMER THERMAL ELEMENTS
TOP OIL °C:
70°C
HOTTEST-SPOT °C:
130°
AGING FACTOR:
1.2
DAILY RATE LOL:
15 hrs
XFMR LIFE LOST:
100000 hrs
T60 Transformer Protection System
6.3 METERING
6.3.2 TRANSFORMER
6
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