Switch Gear The arc voltage produced in AC circuit breaker is always None of these lagging the arc current by 90° leading the arc current by 90° In phase with the arc current None of these lagging the arc current by 90° leading the arc current by 90° In phase with the arc current ANSWER DOWNLOAD EXAMIANS APP
Switch Gear A fuse is never inserted in negative of dc circuit positive of dc circuit neutral wire phase line negative of dc circuit positive of dc circuit neutral wire phase line ANSWER DOWNLOAD EXAMIANS APP
Switch Gear A short-circuit is identified by voltage rise voltage drop no current flow heavy current flow voltage rise voltage drop no current flow heavy current flow ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Overheating of relay contacts or contact born out is due to all of these slow making and breaking of load circuit contacts foreign matter on the contact surface too low contact pressure all of these slow making and breaking of load circuit contacts foreign matter on the contact surface too low contact pressure ANSWER DOWNLOAD EXAMIANS APP
Switch Gear For the same power, the least size is of sf6 circuit breaker vaccum circuit breaker oil circuit breaker air-blast circuit breaker sf6 circuit breaker vaccum circuit breaker oil circuit breaker air-blast circuit breaker ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The transient voltage that appears across the contacts at the instant of arc extinction is called peak voltage supply voltage recovery voltage restriking voltage peak voltage supply voltage recovery voltage restriking voltage ANSWER DOWNLOAD EXAMIANS APP
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