Appendix
A.3 Connection Examples
SIPROTEC, 7SK80, Manual
E50417-G1140-C344-A4, Release date 08.2010
419
Figure A-19 Current transformer connections to two phase currents and two ground currents; IN/INs –
ground current of the line, IN2 – ground current of the transformer starpoint
Important! Grounding of the cable shield must be effected at the cable side
For busbar-side grounding of the current transformers, the current polarity of the device is changed via address
0201. This also reverses the polarity of the current input IN/INs. When using a cable-type current transformer,
the connection of k and l at F8 and F7 must be exchanged.
Figure A-20 Example for connection type "VAN, VBN, VCN" load-side voltage connection
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