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what is Distance protection & how did it work

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what is Distance protection & how did it work..

Answer / raghavendran.r

Distance protection relays work on the value of Z = V/I.
Whenever there is a fault, the value of I increases and
thus the value of Z is reduced.It is by this vakue of
impedance the relay senses the distance of the fault from
its location.
It is also called as Ohmic method of Protection.

Is This Answer Correct ?    6 Yes 0 No

what is Distance protection & how did it work..

Answer / siva

The Power transformers inner and incipient faults are
identified by the Bacholtz relay.but the Faults which are
occurring outside the transformers are detected by the
Distance Protection relays.

the Distance protection relay operates on the principle of
Differential relay,and it is acted with reference from the
CT's and PT's Which are Connected on both the End of the
Transformer.

Is This Answer Correct ?    0 Yes 5 No

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