where we sense the fault from the transmission lines?any operation example for

where we sense the fault from the transmission lines?any
operation example for distance relay?rear panel connection
for this relay?

Question Posted / getdaya@yahoo.com

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where we sense the fault from the transmission lines?any operation example for distance relay?rear ..

Answer / k.prakashchandra

The voltage and current measurements are fed to distance
relay.Z=V/I.During fault V decreases and I increases. Then
value of Z decreases.The relay is set to trip for a certain
low value of Z.So the relay does not trip at zero current
but at zero voltage.Connections are to be done as per the
instructions.

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