IDMT relays are used to protect the power transformers against
IDMT relays are used to protect the power transformers against

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