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Why is the diffrential protection in DG. What if the CT
polarity is reversed while connecting for the same type of
protection? How polarity can be made ok?
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Answer Posted / parthasarathy c
Diffrential protection is used to protect internal fault
like winding faults,it is used to protect the the
equipments like Generator,Transformer and bus bars.
If CT polarity changed in Directional type releys it will
give trip command when normal operating condition.
Brfore giving connection we must read name plate details to
avoid polarity change.
| Is This Answer Correct ? | 17 Yes | 2 No |
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