Power Systems What is the correct expression for the electrical power developed by ( 75 / 0.736 ) × WQHη. 75 × 0.736 × WQHη. ( 0.763 / 75 ) × WQHη. ( 7 / 75 ) × WQHη. ( 75 / 0.736 ) × WQHη. 75 × 0.736 × WQHη. ( 0.763 / 75 ) × WQHη. ( 7 / 75 ) × WQHη. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A 3-phase transmission line operating at Vs = 400 kV and has ABCD parameters A= D = 0.8∠0°, B = 100∠°90 Ω, C = 0.5*10^-6∠90° ℧. Find Charging current under no load? 1.144∠90° A/phase 0.144∠90° A/phase 0.344∠90° A/phase 0.512∠90° A/phase 1.144∠90° A/phase 0.144∠90° A/phase 0.344∠90° A/phase 0.512∠90° A/phase ANSWER DOWNLOAD EXAMIANS APP
Power Systems In a 4 bus,4×4 Y bus matrix the number of non zero elements are 12. Find the number of transmission lines? 5 2 4 8 5 2 4 8 ANSWER DOWNLOAD EXAMIANS APP
Power Systems A coal fired steam power station working at a plant factor of 80% has one 500 MW generating unit. If the heat content of coal is 2 kWh/kg, the overall plant efficiency is 40% and a train load of coal is 2000 metric tons, then the number of trains required daily for the plant is 6 10 2 16 6 10 2 16 ANSWER DOWNLOAD EXAMIANS APP
Power Systems The inertia constant of 100 MVA, 50 Hz, 4 pole generator is 10 MJ/MVA. If the mechanical input to the machine is suddenly raised from 50 MW to 75 MW, the rotor acceleration will be equal to 12.5 electrical degrees/s² 225 electrical degrees/s² 125 electrical degrees/s² 22.5 electrical degrees/s² 12.5 electrical degrees/s² 225 electrical degrees/s² 125 electrical degrees/s² 22.5 electrical degrees/s² ANSWER DOWNLOAD EXAMIANS APP
Power Systems The load duration curve for a system is 8 hours 30 MW, 16 hours 25 MW and 24 hours 20 MW. The load factor will be 0.25. 0.83. 1.3. 0.44. 0.25. 0.83. 1.3. 0.44. ANSWER DOWNLOAD EXAMIANS APP
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