GE T60 Instruction Manual page 249
Transformer protection system ur series
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5 SETTINGS
Table 5–13: PHASE AND ZERO SEQUENCE COMPENSATION FOR TYPICAL VALUES OF
w
[
]
Grounding[
comp
0°
30° lag
p
I
w
A
p
I
w
B
p
I
w
C
60° lag
90° lag
p
I
w
A
p
I
w
B
p
I
w
C
120° lag
150° lag
p
I
w
A
p
I
w
B
p
I
w
C
180° lag
210° lag
p
I
w
A
p
I
w
B
p
I
w
C
GE Multilin
w
] = "Not within zone"
p
I
w
I
w
=
A
A
p
I
w
I
w
=
B
B
p
I
w
I
w
=
C
C
1
1
------ - I
w
------ - I
w
=
–
A
C
3
3
1
1
------ - I
w
------ - I
w
=
–
B
A
3
3
1
1
------ - I
------ - I
w
w
=
–
C
B
3
3
p
I
w
I
w
,
=
–
A
C
p
I
w
I
w
,
=
–
B
A
p
I
w
I
w
=
–
C
B
1
1
------ - I
------ - I
w
w
=
–
B
C
3
3
1
1
------ - I
------ - I
w
w
=
–
C
A
3
3
1
1
------ - I
w
------ - I
w
=
–
A
B
3
3
p
I
w
I
w
=
A
B
p
I
w
I
w
=
B
C
p
I
w
I
w
=
C
A
1
1
------ - I
------ - I
w
w
=
–
B
A
3
3
1
1
------ - I
w
------ - I
w
=
–
C
B
3
3
1
1
------ - I
------ - I
w
w
=
–
A
C
3
3
p
I
w
I
w
=
–
A
A
p
I
w
I
w
=
–
B
B
p
I
w
I
w
=
–
C
C
1
1
------ - I
w
------ - I
w
=
–
C
A
3
3
1
1
------ - I
------ - I
w
w
=
–
A
B
3
3
1
1
------ - I
------ - I
w
w
=
–
B
C
3
3
T60 Transformer Protection System
5.4 SYSTEM SETUP
comp
w
Grounding[
] = "Within zone"
2
1
1
p
-- - I
-- - I
-- - I
I
w
w
w
=
–
–
A
A
B
C
3
3
3
2
1
1
p
-- - I
-- - I
-- - I
I
w
w
w
=
–
–
B
B
A
C
3
3
3
2
1
1
p
-- - I
-- - I
-- - I
I
w
w
w
=
–
–
C
C
A
B
3
3
3
1
1
p
I
w
------ - I
w
------ - I
w
=
–
A
A
C
3
3
1
1
p
I
w
------ - I
w
------ - I
w
=
–
B
B
A
3
3
1
1
p
------ - I
------ - I
I
w
w
w
=
–
C
C
B
3
3
2
1
1
p
-- - I
-- - I
-- - I
I
w
w
w
=
–
+
+
A
C
A
3
3
3
2
1
1
p
I
w
-- - I
w
-- - I
w
-- - I
=
–
+
+
B
A
B
3
3
3
2
1
1
p
I
w
-- - I
w
-- - I
w
-- - I
=
–
+
+
C
B
A
3
3
3
1
1
p
------ - I
------ - I
I
w
w
w
=
–
A
B
C
3
3
1
1
p
------ - I
------ - I
I
w
w
w
=
–
B
C
A
3
3
1
1
p
I
w
------ - I
w
------ - I
w
=
–
C
A
B
3
3
2
1
1
p
I
w
-- - I
w
-- - I
w
-- - I
=
–
–
A
B
A
C
3
3
3
2
1
1
p
-- - I
-- - I
-- - I
I
w
w
w
=
–
–
B
C
A
B
3
3
3
2
1
1
p
-- - I
-- - I
-- - I
I
w
w
w
=
–
–
C
A
B
C
3
3
3
1
1
p
------ - I
------ - I
I
w
w
w
=
–
A
B
A
3
3
1
1
p
I
w
------ - I
w
------ - I
w
=
–
B
C
B
3
3
1
1
p
------ - I
------ - I
I
w
w
w
=
–
C
A
C
3
3
2
1
1
p
-- - I
-- - I
-- - I
I
w
w
w
=
–
+
+
A
A
B
3
3
3
2
1
1
p
-- - I
-- - I
-- - I
I
w
w
w
=
–
+
+
B
B
A
3
3
3
2
1
1
p
I
w
-- - I
w
-- - I
w
-- - I
=
–
+
+
C
C
A
3
3
3
1
1
p
I
w
------ - I
w
------ - I
w
=
–
A
C
A
3
3
1
1
p
------ - I
------ - I
I
w
w
w
=
–
B
A
B
3
3
1
1
p
------ - I
------ - I
I
w
w
w
=
–
C
B
C
3
3
w
w
5
w
w
B
w
C
w
C
w
w
w
w
C
w
C
w
B
5-115
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