Siemens SIPROTEC 7SA6 Manual page 788

Appendix
A-64
A
Figure A-46 Voltage connections to three Wye-connected voltage transformers and
additionally to any phase-to-phase voltage (for overvoltage protection and/or
synchronism check)
A
B
(any voltage)
a
b
B
a b
Housing Size
L1
L2
L3
Panel Surface Mounted
Flush Mounted/Cubicle
U
L1
R15
45
U
L2
44 R17
U
L3
60 R18
59 R16
U
4
26 R13
25 R14
7SA6
1
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3
C53000-G1176-C156-2
7SA6 Manual