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Siemens 7SJ85
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[tileite8-260313-01.tif, 2, en_US]
Figure A-17 Connection to a 2-Wire Current Transformer and Cable Type Current Transformer for Sensitive
Ground-Fault Detection - for Isolated or Resonant-Grounded Systems Only
i
i
NOTE
The switchover of current polarity at the 3-phase current transformer causes a rotation in the direction of
electric current for current input I4 (I
N-sep
)!
[tileite9-260313-01.tif, 2, en_US]
Figure A-18
Connection to a 3-Wire Current Transformer and an Additional Current Transformer in the
Neutral Point of a Grounded Power Transformer
Appendix
A.7 Connection Examples for Current Transformers
SIPROTEC 5, Overcurrent Protection, Manual 1597
C53000-G5040-C017-8, Edition 07.2017

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