Switch Gear The arc voltage produced in AC circuit breaker is always leading the arc current by 90° In phase with the arc current lagging the arc current by 90° None of these leading the arc current by 90° In phase with the arc current lagging the arc current by 90° None of these ANSWER DOWNLOAD EXAMIANS APP
Switch Gear ________ relay is preferred for phase fault on short transmission line. Impedance None of these Reactance Induction type Impedance None of these Reactance Induction type ANSWER DOWNLOAD EXAMIANS APP
Switch Gear If the fault occurs near the impedance relay, the V/ I ratio will be constant for all distances None of these higher than that of if fault occurs away from the relay Lower than that of if fault occurs away from the relay constant for all distances None of these higher than that of if fault occurs away from the relay Lower than that of if fault occurs away from the relay ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The rate of rise of restriking voltage depends on the type of circuit breaker the inductance of the system only the capacitance of the system only both inductance and capacitance of the system the type of circuit breaker the inductance of the system only the capacitance of the system only both inductance and capacitance of the system ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Which of the following is the least expensive protection for over current is low voltage system ? isolator oil circuit breaker air break circuit breaker rewireable fuse isolator oil circuit breaker air break circuit breaker rewireable fuse ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The rated secondary current of current transformer for relays is generally 20 A 10 A 30 A 5 A 20 A 10 A 30 A 5 A ANSWER DOWNLOAD EXAMIANS APP
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