Switch Gear Arc in a circuit breaker is interrupted at maximum voltage minimum voltage zero current maximum current maximum voltage minimum voltage zero current maximum current ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The relay operating speed depends upon All of these armature core air gap the spring tension the rate of flux built up All of these armature core air gap the spring tension the rate of flux built up ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Circuit breakers usually operate under 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 steady state of short circuit current ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Air blast circuit breakers for 400 kV power system are designed to operate in 100 micro-second 0.1 sec 50 milli-second 0.5 sec 100 micro-second 0.1 sec 50 milli-second 0.5 sec ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The arc voltage produced in AC circuit breaker is always None of these 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° ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The main function of a fuse is to None of these open the circuit protect the appliance prevent excessive currents protect the line None of these open the circuit protect the appliance prevent excessive currents protect the line ANSWER DOWNLOAD EXAMIANS APP
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