Switchgear Protections - Study Mode
[#66] Overload relays are of type.
Correct Answer
induction
[#67] H.R.C. fuse, as compared to a rewirable fuse, has
Correct Answer
(D) all of the above
[#68] The inverse definite mean time relays are used for over current and earth fault protection of transformer against
Correct Answer
(B) internal short-circuits
[#69] Which of the following devices will receive voltage surge first travelling on the transmission line ?
Correct Answer
(A) Lightning arresters
[#70] The relay with inverse time characteristic will operate within
Correct Answer
(B) 5 to 10 sec