Appendix
A.3 Connection Examples
SIPROTEC, 7SK80, Manual
E50417-G1140-C344-A4, Release date 08.2010
413
Figure A-11 Current transformer connections to three current transformers - ground current from additional
cable-type current transformer for sensitive ground fault detection
Important: Grounding of the cable shield must be effected at the cable side
Note: The switchover of the current polarity (address 201) also reverses the polarity of the current input INs!
Figure A-12 Transformer connections to three current transformers and three voltage transformers (phase-
to-ground voltages), normal circuit layout – appropriate for all networks
To Next Page
Loading...
