Siemens siprotec 7SA6 - Page 786

Appendix
A-62 7SA6 Manual
C53000-G1176-C156-2
Figure A-43 Voltage connections to three Wye-connected voltage transformers with
additional open-delta windings (da–dn–winding) from the busbar
Figure A-44 Voltage connections to two V-connected voltage transformers with
additional open-delta windings (da–dn–winding) from the busbar
Housing Size
2
/
3
Flush Mounted/Cubicle
L1
L2
L3
R15
R17
R18
U
L1
U
L2
U
L3
7SA6
R16
R13
U
4
R14
ab
AB
A
B
da
dn
Housing Size
1
/
3
Panel Surface Mounted
Flush Mounted/Cubicle
L1
L2
L3
R15
R17
R18
U
L1
U
L2
45
44
60
U
L3
7SA6
R16 59
R13
U
4
26
R14 25
a
b
A
B
A
B
da
dn
A
Bb
a