Switch Gear Which of the following CB's is generally used in railways applications ? sf 6 circuit breaker air break circuit breaker low oil circuit breaker bulk oil circuit breaker sf 6 circuit breaker air break circuit breaker low oil circuit breaker bulk oil circuit breaker ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Air blast circuit breakers for 400 kV power system are designed to operate in 0.5 sec 100 micro-second 50 milli-second 0.1 sec 0.5 sec 100 micro-second 50 milli-second 0.1 sec ANSWER DOWNLOAD EXAMIANS APP
Switch Gear A short-circuit is identified by voltage drop no current flow heavy current flow voltage rise voltage drop no current flow heavy current flow voltage rise ANSWER DOWNLOAD EXAMIANS APP
Switch Gear HRC fuses provide best protection against reverse current overload short circuits open circuits reverse current overload short circuits open circuits ANSWER DOWNLOAD EXAMIANS APP
Switch Gear A fuse should have All of these low cost high conductivity low melting point All of these low cost high conductivity low melting point ANSWER DOWNLOAD EXAMIANS APP
Switch Gear An overcurrent relay having current settling of 125% is connected to a supply circuit through a current transformer of 400/5 A. The pick-up current is 6.25 A 3.125 A 25 A 12.5 A 6.25 A 3.125 A 25 A 12.5 A ANSWER DOWNLOAD EXAMIANS APP
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