Switch Gear Which of the following circuit breakers is prefered for EHT applications ? low oil circuit breaker air break circuit breaker Sf6 CB bulk oil circuit breaker low oil circuit breaker air break circuit breaker Sf6 CB bulk oil circuit breaker ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Resistance grounding is used for voltage between 3.3 kV to 11 kv 33 kV to 66 kV 11 kv to 33 kv None of these 3.3 kV to 11 kv 33 kV to 66 kV 11 kv to 33 kv None of these 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 1500/√3 A 750 A None of these 1500 A 1500/√3 A 750 A None of these 1500 A ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The relay operating coil is supplied through None of these fuse power transformer current transformer None of these fuse power transformer current transformer ANSWER DOWNLOAD EXAMIANS APP
Switch Gear A circuit breaker is a current controlling device None of these current limiting device circuit interrupting device current controlling device None of these current limiting device circuit interrupting device 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 200 A 100 A more than 1000 A 300 A 200 A 100 A more than 1000 A 300 A ANSWER DOWNLOAD EXAMIANS APP
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