Power Systems The arc voltage produced in an AC circuit breaker is always in phase opposition with the arc current. lagging the arc current by 90°. in phase with the arc current. leading the arc current by 90°. in phase opposition with the arc current. lagging the arc current by 90°. in phase with the arc current. leading the arc current by 90°. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Capacitance voltage transformer ( CVT ) is used to none of these. reduce losses in a transmission line. improve the power factor of the transmission. connect instruments on the LT side. none of these. reduce losses in a transmission line. improve the power factor of the transmission. connect instruments on the LT side. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Merze price current scheme protection is used in transformer. bus bars. alternator. both A and B. transformer. bus bars. alternator. both A and B. ANSWER DOWNLOAD EXAMIANS APP
Power Systems If we increase the spacing between the phase conductors, the value of line inductance decrease increase None of these remains unaffected decrease increase None of these remains unaffected ANSWER DOWNLOAD EXAMIANS APP
Power Systems Under over excitation synchronous phase modifier works as shunt reactor series capacitor shunt capacitor any of the above shunt reactor series capacitor shunt capacitor any of the above ANSWER DOWNLOAD EXAMIANS APP
Power Systems If the percentage reactance of an element is 20 % and the full load current is 50 Amp, the short circuit current will be 200 Amp. 300 Amp. 350 Amp. 250 Amp. 200 Amp. 300 Amp. 350 Amp. 250 Amp. ANSWER DOWNLOAD EXAMIANS APP
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