Switch Gear The operating time of a fuse is about 0.8 sec 1 sec 0.002 sec 1.5 sec 0.8 sec 1 sec 0.002 sec 1.5 sec ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The normal current in a power line is 100 A. If a short-circuit fault occurs on the line, then one can expect the short-circuit current to be 300 A 100 A 200 A more than 1000 A 300 A 100 A 200 A more than 1000 A ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The arc voltage produced in AC circuit breaker is always None of these lagging the arc current by 90° In phase with the arc current leading the arc current by 90° None of these lagging the arc current by 90° In phase with the arc current leading the arc current by 90° ANSWER DOWNLOAD EXAMIANS APP
Switch Gear HRC fuses provide best protection against reverse current open circuits short circuits overload reverse current open circuits short circuits overload ANSWER DOWNLOAD EXAMIANS APP
Switch Gear A circuit breaker is rated as 1500 A, 1000 MVA, 33 kv, 3-second , 3- phase oil circuit breaker. The rated normal current is 750 A None of these 1500 A 1500/√3 A 750 A None of these 1500 A 1500/√3 A ANSWER DOWNLOAD EXAMIANS APP
Switch Gear When the circuit breaker operates under fault conditions, the greatest noise is produced in oil circuit breaker vaccum circuit breaker sf6 circuit breaker air-blast circuit breaker oil circuit breaker vaccum circuit breaker sf6 circuit breaker air-blast circuit breaker ANSWER DOWNLOAD EXAMIANS APP
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