Siemens siprotec 7SJ63 - Connection Examples; A.4 Connection Examples

Appendix
A-40 7SJ63 Manual
C53000-G1140-C120-1
A.4 Connection Examples
Figure A-35 Current connections to three current transformers with a starpoint connection for
ground current(Grounded-Wye Connection with residual
3I
0
Neutral Current), nor-
mal circuit layout – appropriate for all networks.
Flush-mounted/Cubicle
Panel Surface Mounted
A B C
3I
0
Ia
Ib
Ic
Q1
Q3
Q5
Q2
Q4
Q6
Q7
Q8
25
24
23
22
50
49
48
47
7SJ63
Size
1
/
2
Flush-mounted/Cubicle
Panel Surface Mounted
A B C
3I
0
Ia
Ib
Ic
Q1
Q3
Q5
Q2
Q4
Q6
Q7
Q8
50
49
48
47
100
99
98
97
7SJ63
Size
1
/
1
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