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Answer / barkha thakur
dirrential relay is a type of directional relay
it operates when there is a difference in the primary &
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Answer / biju mathew
Differential relay is a relay which operates when there is
a difference between two currents. For example incoming and
outgoing currents in a circuit.
|Is This Answer Correct ?||2 Yes||0 No|
Diffrential relay is used in transformer winding protection, it calculates the current of secondary side with transformer turn ration, if the current on other side is very slightly diffrent it does not trip but when iy crosses a fixed percent of defined protection it trips the circuit.
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