IDMT relays are used to protect the power transformers against
(a) external short circuits.
(b) overloads.
(c) internal short-circuits.
(d) external short circuits and overloads.
IDMT relays are used to protect the power transformers against
IDMT relays are used to protect the power transformers against
(a) external short circuits.
(b) overloads.
(c) internal short-circuits.
(d) external short circuits and overloads.