Siemens siprotec 7SA522 - Page 566

Appendix
A-18 7SA522 Manual
C53000-G1176-C119-2
Voltage Transform-
er Examples
Figure 1-13 Voltage connections to three Wye-connected voltage transformers (normal cir-
cuit layout)
Housing size
1
/
2
Panel surface mounted
Flush mounted/cubicle
L1
L2
L3
R15
R17
R18
U
L1
U
L2
20
19
44
U
L3
7SA522
R16 45
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