Switch Gear Air blast circuit breakers for 400 kV power system are designed to operate in 0.5 sec 50 milli-second 100 micro-second 0.1 sec 0.5 sec 50 milli-second 100 micro-second 0.1 sec ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The relay operating coil is supplied through power transformer current transformer fuse None of these power transformer current transformer fuse None of these ANSWER DOWNLOAD EXAMIANS APP
Switch Gear For interrupting of high voltage and low current, the circuit breaker prefered is vaccum circuit breaker all are correct oil circuit breaker air-blast circuit breaker vaccum circuit breaker all are correct oil circuit breaker air-blast circuit breaker ANSWER DOWNLOAD EXAMIANS APP
Switch Gear A three phase circuit breaker is rated at 2000 MVA, 33 kv. The symmetrical breaking current is 35 kA 80 kA 20 kA 60 kA 35 kA 80 kA 20 kA 60 kA ANSWER DOWNLOAD EXAMIANS APP
Switch Gear For which of the following protection from negative sequence currents is provided ? Motors Generators Transformers Transmission line Motors Generators Transformers Transmission line ANSWER DOWNLOAD EXAMIANS APP
Switch Gear To reduce short circuit fault currents......... are used. capacitors None of these resistors reactors capacitors None of these resistors reactors ANSWER DOWNLOAD EXAMIANS APP
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