Switch Gear Air blast circuit breakers for 400 kV power system are designed to operate in 100 micro-second 0.5 sec 0.1 sec 50 milli-second 100 micro-second 0.5 sec 0.1 sec 50 milli-second ANSWER DOWNLOAD EXAMIANS APP
Switch Gear An efficient and a well designed protective relaying should have good selectivity and reliability high speed and selectivity economy and simplicity All of these good selectivity and reliability high speed and selectivity economy and simplicity All of these ANSWER DOWNLOAD EXAMIANS APP
Switch Gear A three phase circuit breaker is rated at 2000 MVA, 33 kv. The symmetrical breaking current is 20 kA 35 kA 80 kA 60 kA 20 kA 35 kA 80 kA 60 kA ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Wave trap is used to trap waves of either of the above power frequencies None of these higher frequencies entering generator or transformer units either of the above power frequencies None of these higher frequencies entering generator or transformer units ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The time of closing the cycle, in modern circuit breakers is 0.003 sec 0.01 sec 0.001 sec 0.10 sec 0.003 sec 0.01 sec 0.001 sec 0.10 sec ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The information to the circuit breaker under fault conditions is provided by H.R.'only All of these rewirable fuse relay H.R.'only All of these rewirable fuse relay ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS