what is diffential relay? testing proceure?and
transformer reach Over load thet time differencilal relay
operate or not ?
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Answer Posted / engr rb
differential rely operatets on differencs in either voltage
or current, these are two diff relays,. definately if the
transf over loaded then voltage will drop and current will
increase so it will cause imbalace in the current and
voltage cosequently rely will be operated.
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