Power Systems A power station has a maximum demand of 15000 kW. The annual load factor is 50% and plant capacity factor is 40%. What is the reserve capacity of the plant? 7500 kW 3000 kW 3750 kW 6000 kW 7500 kW 3000 kW 3750 kW 6000 kW ANSWER DOWNLOAD EXAMIANS APP
Power Systems A 100 Km long transmission line is loaded at 110 kV. If the loss of line is 5 MW and the load is 150 VA the resistance of the line is 6.06 Ω / phase. 8.06 Ω / phase. 2.26 Ω / phase. 4.65 Ω / phase. 6.06 Ω / phase. 8.06 Ω / phase. 2.26 Ω / phase. 4.65 Ω / phase. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A 1- phase transmission line operating at 30 kV has radius of 1 cm and distance between conductors is 0.5 m. Assume m = δ =1, g = 21 kV/cm and frequency f = 50 Hz. Find the critical disruptive voltage? 82.15 kV/phase 17.32 kV/phase 34.64 kV/phase 41.075 kV/phase 82.15 kV/phase 17.32 kV/phase 34.64 kV/phase 41.075 kV/phase ANSWER DOWNLOAD EXAMIANS APP
Power Systems The modern trend in electric power generation to have large number of small size thermal plants located at different places. none of above. to have large size thermal plant located near coal fields. to have large size thermal plants near load centre. to have large number of small size thermal plants located at different places. none of above. to have large size thermal plant located near coal fields. to have large size thermal plants near load centre. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Two insulator discs of identical capacitance value C make up a string for a 22 kV, 50 Hz, single phase overhead line insulation system. If pin to earth capacitance is also C, then find the string efficiency? 75% 50% 86%% 90% 75% 50% 86%% 90% ANSWER DOWNLOAD EXAMIANS APP
Power Systems ACSR means Aluminium core steel reinforced Aluminium copper steel reinforced all conductor steel reinforced Aluminium conductor steel reinforced Aluminium core steel reinforced Aluminium copper steel reinforced all conductor steel reinforced Aluminium conductor steel reinforced ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS