Siemens siprotec 7SA522 - Page 567

Appendix
A-197SA522 Manual
C53000-G1176-C119-2
Figure 1-14 Voltage connections to three Wye-connected voltage transformers with addition-
al open-delta windings (e–n–winding)
Housing size
1
/
2
Panel surface mounted
Flush mounted/cubicle
L2
L3
R15
R17
R18
U
L1
U
L2
20
19
44
U
L3
7SA522
R16 45
R13
U
4
21
R14 46
Housing size
1
/
1
Panel surface mounted
Flush mounted/cubicle
L1
L2
L3
R15
R17
R18
U
L1
U
L2
45
44
94
U
L3
7SA522
R16 95
R13
U
4
46
R14 96
en
en