why exterrnal C.T. protection is used even though ACB& VCB
is having inbuild C.T. protection?
Answers were Sorted based on User's Feedback
Answer / k.prakashchandra
In-built protection is for currents exceeding the rated
current of the breaker,which is usually higher than that of
your requirement.Further, you can not alter this unless you
replace the cts.
Is This Answer Correct ? | 2 Yes | 1 No |
Answer / k.prakashchandra
In other words ,if the in-built CT does not meet your
requirements ,you have to use external ones.
Is This Answer Correct ? | 0 Yes | 1 No |
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