The delay fuses are used for the protection of motors.
Answer : Protection by fuses is generally not used beyond 100 A .
Answer : H.R.C. fuses provide best protection against short-circuits.
Description : The material used in liquid fuses is (1) SF6 (3) carbon tetra chloride (2) distilled water (4) transformer oil
Answer : The material used in liquid fuses is carbon tetra chloride
Description : Surge absorbers are used for protection against
Answer : Surge absorbers are used for protection against low voltage high frequency oscillations
Answer : The inverse definite mean time relays are used for over current and earth fault protection of transformer against internal short-circuits.