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 Lightning arresters are used to protect electrical equipment against over voltages due to indirect lightning stroke. over currents due to lightning stroke. power frequency of over voltages. direct strokes of lightning. over voltages due to indirect lightning stroke. over currents due to lightning stroke. power frequency of over voltages. direct strokes of lightning. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A transmission line has (2 + j4)Ω impedance, 100 MVA and base voltage is 10 KV. Find the per unit impedance value of transmission line? (2 + j4 ) pu (1 + j2 ) pu (4 + j8 ) pu (0.5 + j1 ) pu (2 + j4 ) pu (1 + j2 ) pu (4 + j8 ) pu (0.5 + j1 ) pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems Reactance relays are used for the protection of short transmission lines only long transmission lines only All of these medium transmission lines only short transmission lines only long transmission lines only All of these medium transmission lines only ANSWER DOWNLOAD EXAMIANS APP
Power Systems High capacity generators and motors are of star connected network star connected with grounding network delta connected network any of the above star connected network star connected with grounding network delta connected network any of the above ANSWER DOWNLOAD EXAMIANS APP
Power Systems Differential relays does not used for which of the following faults? faults within a transformer faults within a generator through faults both 1 and 2 faults within a transformer faults within a generator through faults both 1 and 2 ANSWER DOWNLOAD EXAMIANS APP
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