Switch Gear The device that detects the fault in a power system is relay None of these circuit breaker isolator relay None of these circuit breaker isolator ANSWER DOWNLOAD EXAMIANS APP
Switch Gear For which of the following protection from negative sequence currents is provided ? Generators Transmission line Transformers Motors Generators Transmission line Transformers Motors ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Circuit breakers usually operate under sub-transient state of short circuit current steady state of short circuit current transient state of short circuit current after dc component has ceased sub-transient state of short circuit current steady state of short circuit current transient state of short circuit current after dc component has ceased ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The voltage appearing across the contacts after opening of the circuit breaker is called operating voltage recovery voltage arc voltage surge voltage operating voltage recovery voltage arc voltage surge voltage ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The rate of rise of restriking voltage depends on the type of circuit breaker the capacitance of the system only the inductance of the system only both inductance and capacitance of the system the type of circuit breaker the capacitance of the system only the inductance of the system only both inductance and capacitance of the system ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The normal current in a power line is 100 A. If a short-circuit fault occurs on the line, then one can expect the short-circuit current to be 300 A 200 A 100 A more than 1000 A 300 A 200 A 100 A more than 1000 A ANSWER DOWNLOAD EXAMIANS APP
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