GE Multilin
L90 Line Current Differential System
9-31
9 THEORY OF OPERATION
9.4 PHASE DISTANCE APPLIED TO POWER TRANSFORMERS
9
Dy9
AB
BC
CA
Dy11
AB
BC
CA
Table 9–10: PHASE DISTANCE INPUT SIGNALS FOR WYE-DELTA TRANSFORMERS
TRANSFORMER
CONNECTION
LOOP
CURRENT
TRANSFORMATION
VOLTAGE
TRANSFORMATION
Yd1
AB
BC
CA
Yd3
AB
BC
CA
Yd5
AB
BC
CA
Yd7
AB
BC
CA
Table 9–9: PHASE DISTANCE INPUT SIGNALS FOR DELTA-WYE TRANSFORMERS
TRANSFORMER
CONNECTION
LOOP
CURRENT
TRANSFORMATION
VOLTAGE
TRANSFORMATION
I
AB
_21
P
3
I
C
V
AB
_21
P
1
3
-------
V
CA
V
BC
I
BC
_21
P
3
I
A
V
BC
_21
P
1
3
-------
V
AB
V
CA
I
CA
_21
P
3
I
B
V
CA
_21
P
1
3
-------
V
BC
V
AB
I
AB
_21
P
3
I
B
V
AB
_21
P
1
3
-------
V
AB
V
BC
I
BC
_21
P
3
I
C
V
BC
_21
P
1
3
-------
V
BC
V
CA
I
CA
_21
P
3
I
A
V
CA
_21
P
1
3
-------
V
CA
V
AB
I
AB
_21
P
1
3
-------
2
I
A
I
B
I
C
V
AB
_21
P
3
V
A
I
BC
_21
P
1
3
-------
2
I
B
I
A
I
C
V
BC
_21
P
3
V
B
I
CA
_21
P
1
3
-------
2
I
C
I
A
I
B
V
CA
_21
P
3
V
C
I
AB
_21
P
1
3
-------
I
A
I
B
2
I
C
V
AB
_21
P
3
V
C
I
BC
_21
P
1
3
-------
I
B
I
C
2
I
A
V
BC
_21
P
3
V
A
I
CA
_21
P
1
3
-------
I
A
I
C
2
I
B
V
CA
_21
P
3
V
B
I
AB
_21
P
1
3
-------
2
I
B
I
A
I
C
V
AB
_21
P
3
V
B
I
BC
_21
P
1
3
-------
2
I
C
I
A
I
B
V
BC
_21
P
3
V
C
I
CA
_21
P
1
3
-------
2
I
A
I
B
I
C
V
CA
_21
P
3
V
A
I
AB
_21
P
1
3
-------
I
B
I
C
2
I
A
V
AB
_21
P
3
V
A
I
BC
_21
P
1
3
-------
I
A
I
C
2
I
B
V
BC
_21
P
3
V
B
I
CA
_21
P
1
3
-------
I
A
I
B
2
I
C
V
CA
_21
P
3
V
C
Summary of Contents for UR Series L90
Page 652: ...A 16 L90 Line Current Differential System GE Multilin A 1 PARAMETER LISTS APPENDIX A A ...
Page 772: ...B 120 L90 Line Current Differential System GE Multilin B 4 MEMORY MAPPING APPENDIX B B ...
Page 802: ...C 30 L90 Line Current Differential System GE Multilin C 7 LOGICAL NODES APPENDIX C C ...
Page 812: ...D 10 L90 Line Current Differential System GE Multilin D 1 IEC 60870 5 104 APPENDIX D D ...
Page 824: ...E 12 L90 Line Current Differential System GE Multilin E 2 DNP POINT LISTS APPENDIX E E ...
Page 834: ...F 10 L90 Line Current Differential System GE Multilin F 3 WARRANTY APPENDIX F F ...
Page 846: ...xii L90 Line Current Differential System GE Multilin INDEX ...