GE UR T60 - Commissioning Test Tables; Differential Restraint Tests; Inrush Inhibit Tests

9-16 T60 Transformer Protection System GE Multilin
9.6 COMMISSIONING TEST TABLES 9 COMMISSIONING
9
9.6COMMISSIONING TEST TABLES 9.6.1 DIFFERENTIAL RESTRAINT TESTS
9.6.2 INRUSH INHIBIT TESTS
Table 9–3: DIFFERENTIAL CHARACTERISTIC TEST TABLE
TEST PHASE INJECTED CURRENT DISPLAYED CURRENT STATUS
W1 CURRENT W2 CURRENT DIFFERENTIAL RESTRAINT
Balanced
Condition
A Not Applicable
B
C
Min Pickup A Status: ____________
I
d
= _______________
B
C
Min Pickup A Status: ____________
I
d
= _______________
B
C
Slope 1 A Status: ____________
I
d
/I
r
= _____________
B
C
Slope 1 A Status: ____________
I
d
/I
r
= _____________
B
C
Intermediate
Slope 1 & 2
A Status: ____________
I
d
/I
r
= _____________
B
C
Intermediate
Slope 1 & 2
A Status: ____________
I
d
/I
r
= _____________
B
C
Slope 2 A Status: ____________
I
d
/I
r
= _____________
B
C
Slope 2 A Status: ____________
I
d
/I
r
= _____________
B
C
Table 9–4: INRUSH INHIBIT TEST TABLE
PHASE INJECTED DISPLAYED STATUS
(BLOCK/
OPERATE)
W1
CURRENT
(A)
W1 2ND
HARMONIC
(%)
W2
CURRENT
(A)
W2 2ND
HARMONIC
(%)
I
d
(PU) 2ND
HARMONIC
(%)
I
r
(PU)
A
B
C