
Appendix
A.3 Connection Examples
SIPROTEC, 7SJ61, Manual
C53000-G1140-C210-1, Release date 02.2008
388
Figure A-14
Current transformer connections to two phase currents and two ground currents;
I
N/INs – ground current of the line,
I
G2 – ground current of the transformer starpoint
Important!
Grounding of the cable shield must be effected at the cable's side
For busbar-side grounding of the current transformer, the current polarity of the device is changed via address
0201. This also reverses the polarity of current input IN/INs. When using a cable-type current transformer, the
connection of k and l at Q8 and Q7 must be changed.
Figure A-15
High-impedance differential protection for a grounded transformer winding (
showing the partial connection for the high-impedance differential protection)
Содержание SIPROTEC 7SJ61
Страница 368: ...Technical Data 4 22 Dimensions SIPROTEC 7SJ61 Manual C53000 G1140 C210 1 Release date 02 2008 368 ...
Страница 436: ...Appendix A 11 Measured Values SIPROTEC 7SJ61 Manual C53000 G1140 C210 1 Release date 02 2008 436 ...
Страница 438: ...Literature SIPROTEC 7SJ61 Manual C53000 G1140 C210 1 Release date 02 2008 438 ...
Страница 450: ...Glossary SIPROTEC 7SJ61 Manual C53000 G1140 C210 1 Release date 02 2008 450 ...
Страница 454: ...Index SIPROTEC 7SJ61 Manual C53000 G1140 C210 1 Release date 02 2008 454 ...