Power Systems A loss less transmission line has a length of 600 km, find the phase shift of voltage signal? 45° 36° 42° 90° 45° 36° 42° 90° ANSWER DOWNLOAD EXAMIANS APP
Power Systems A transmission line has self and mutual impedances are 0.8 and 0 pu respectively. Find the positive, negative and zero sequence impedances respectively? 0.6, 0.8 and 1.2 pu 0.8, 0.8 and 0.8 pu 0.6, 0.6 and 0.6 pu 0.6, 0.6 and 1.2 pu 0.6, 0.8 and 1.2 pu 0.8, 0.8 and 0.8 pu 0.6, 0.6 and 0.6 pu 0.6, 0.6 and 1.2 pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems Lightning arresters are used to protect electrical equipment against over currents due to lightning stroke. over voltages due to indirect lightning stroke. power frequency of over voltages. direct strokes of lightning. over currents due to lightning stroke. over voltages due to indirect lightning stroke. power frequency of over voltages. direct strokes of lightning. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following circuit breakers produce least arc energy? Air blast CB. Air break CB. Plain oil CB. Minimum oil CB. Air blast CB. Air break CB. Plain oil CB. Minimum oil CB. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A thermal generating station has an installed capacity of 15 MW and supplies a daily load of 10 MW for 12 hours and 5 MW for remaining 12 hours. The plant capacity factor for the station is 0.6 1 0.75 0.5 0.6 1 0.75 0.5 ANSWER DOWNLOAD EXAMIANS APP
Power Systems Per unit of any quantity is defined as actual value of quantity /base value of quantity in different units base value of quantity /actual value of quantity in different units base value of quantity /actual value of quantity in same units actual value of quantity /base value of quantity in same units actual value of quantity /base value of quantity in different units base value of quantity /actual value of quantity in different units base value of quantity /actual value of quantity in same units actual value of quantity /base value of quantity in same units ANSWER DOWNLOAD EXAMIANS APP
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