The purpose of the restraining coil in a biased differential relay is
(A) To reduce CT saturation during fault.
(B) To increase the sensitivity of the relay.
(C) To match the transformation ratio.
(D) To limit the spill current through the relay during heavy external fault.
(A) To reduce CT saturation during fault.
(B) To increase the sensitivity of the relay.
(C) To match the transformation ratio.
(D) To limit the spill current through the relay during heavy external fault.