Switch Gear Arc in a circuit breaker is interrupted at zero current minimum voltage maximum voltage maximum current zero current minimum voltage maximum voltage maximum current ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Current chopping mainly occurs in air-blast circuit breaker vaccum circuit breaker sf 6 circuit breaker oil circuit breaker air-blast circuit breaker vaccum circuit breaker sf 6 circuit breaker oil circuit breaker ANSWER DOWNLOAD EXAMIANS APP
Switch Gear To reduce short circuit fault currents......... are used. resistors capacitors None of these reactors resistors capacitors None of these reactors ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Circuit breakers usually operate under steady state of short circuit current after dc component has ceased transient state of short circuit current sub-transient state of short circuit current steady state of short circuit current after dc component has ceased transient state of short circuit current sub-transient state of short circuit current ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Minimum arcing voltage will be least in case of tungsten graphite carbon silver tungsten graphite carbon silver ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The transient voltage that appears across the contacts at the instant of arc extinction is called supply voltage peak voltage restriking voltage recovery voltage supply voltage peak voltage restriking voltage recovery voltage ANSWER DOWNLOAD EXAMIANS APP
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