In which reason, one end of CT secondry get connected with Earthed? Normaly S1

In which reason, one end of CT secondry get connected with
Earthed? Normaly S1 of CT. Why????

Question Posted / nishad

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In which reason, one end of CT secondry get connected with Earthed? Normaly S1 of CT. Why????..

Answer / dharmaraj.m

If suddenly CT secondary open means,at the time high
voltage produce in the CT sec.side.so that CT sec.connected
to earth. and which equipment u want to prtotect that side
connect the earth.

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