GE T60

8-12 T60 Transformer Protection System GE Multilin
8.2 DIFFERENTIAL CHARACTERISTIC TEST EXAMPLES 8 COMMISSIONING
8
Slope 2 A 0 0° 0 0° 0 0° 0 0° Block
I
d
/I
r
= 93.2%
< Slope 2 = 95%
B 0.315 –90° 8.33 –270° 7.77 –270° 8.33 –270°
C 0.315 –270° 8.33 –90° 7.77 –90° 8.33 –90°
Slope 2 A 0 0° 0 0° 0 0° 0 0° Operate
I
d
/I
r
= 96%
> Slope 2 = 95%
B 0.18 –90° 8.33 –270° 8 –270° 8.33 –270°
C 0.18 –270° 8.33 –90° 8 –90° 8.33 –90°
TEST PHASE INJECTED CURRENT DISPLAYED CURRENT STATUS
W1 CURRENT W2 CURRENT DIFFERENTIAL RESTRAINT