Power Systems When a transformer is loaded, the secondary terminal voltage gains. That means power factor is unity. leading. lagging. zero. unity. leading. lagging. zero. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Ferranti effect can be compensated by which of the following shunt capacitor shunt reactor series capacitor both 1 and 2 shunt capacitor shunt reactor series capacitor both 1 and 2 ANSWER DOWNLOAD EXAMIANS APP
Power Systems The Y bus matrix of 100 bus interconnected system is 90% sparse. Hence the number of transmission lines in the system must be 900 500 250 450 900 500 250 450 ANSWER DOWNLOAD EXAMIANS APP
Power Systems In a short circuit test circuit breaker, time to reach the peak re-striking voltage 60 microsecond & the peak re-striking voltage 120 kV. Determine average RRRV (Rate of rise re-striking voltage)? 3 × 106 kV / sec. 3.5 × 106 kV / sec. 2 × 106 kV / sec. 1 × 106 kV / sec. 3 × 106 kV / sec. 3.5 × 106 kV / sec. 2 × 106 kV / sec. 1 × 106 kV / sec. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Surge impedance loading of a line is increased by which of the following compensation methods? shunt capacitor series capacitor shunt reactor both 1 and 2 shunt capacitor series capacitor shunt reactor both 1 and 2 ANSWER DOWNLOAD EXAMIANS APP
Power Systems Uses of diesel power stations All of these emergency plants. standby plants. peak load plant. All of these emergency plants. standby plants. peak load plant. ANSWER DOWNLOAD EXAMIANS APP
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