Physics, asked by tanmayrp1817, 19 hours ago

Why CT secondary is 1A or 5A?

Answers

Answered by nehasujesh

0

Explanation:

The standard CT secondary current ratings are 1A & 5A,The selection is based on the lead burden used for connecting the CT to meters/Relays. 5A CT can be used where Current Transformer & protectives device are located within same Switchgear Panel. 1A CT is preferred if CT leads goes out of the Switchgear.

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