Switch Gear Air blast circuit breaker is used for short duty repeated duty over currents intermittent duty short duty repeated duty over currents intermittent duty ANSWER DOWNLOAD EXAMIANS APP
Switch Gear An efficient and a well designed protective relaying should have economy and simplicity All of these high speed and selectivity good selectivity and reliability economy and simplicity All of these high speed and selectivity good selectivity and reliability ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Overheating of relay contacts or contact born out is due to foreign matter on the contact surface slow making and breaking of load circuit contacts all of these too low contact pressure foreign matter on the contact surface slow making and breaking of load circuit contacts all of these too low contact pressure ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Circuit breakers usually operate under steady state of short circuit current sub-transient state of short circuit current after dc component has ceased transient state of short circuit current steady state of short circuit current sub-transient state of short circuit current after dc component has ceased transient state of short circuit current ANSWER DOWNLOAD EXAMIANS APP
Switch Gear In a single bus-bar system there will be complete shut down when fault occurs on neutral line fault occurs with respect to earthing fault occurs on the bus itself two or more faults occur simultaneously fault occurs on neutral line fault occurs with respect to earthing fault occurs on the bus itself two or more faults occur simultaneously ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The information to the circuit breaker under fault conditions is provided by relay H.R.'only All of these rewirable fuse relay H.R.'only All of these rewirable fuse ANSWER DOWNLOAD EXAMIANS APP