Power Systems Transmission line has a length of 300 km, operating at sending end voltage Vs = 1 pu, find the receiving end voltage(Vr) at no load? 1 pu 0.098 pu 1.098 pu 0.98 pu 1 pu 0.098 pu 1.098 pu 0.98 pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems An unloaded generator with a pre-fault voltage 1 pu has the following sequence impedance: Z0 = j 0.15 pu, Z1 = Z2 = j 0.25 pu The neutral is grounded with a reactance of 0.05 pu. The fault current in pu for single line to ground fault is 3.75 pu 2.5 pu 7.25 pu 4.28 pu 3.75 pu 2.5 pu 7.25 pu 4.28 pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which type of connection is employed for current transformers for the protection of star- delta connected 3-phase transformer? star-star delta-star star-delta delta-delta star-star delta-star star-delta delta-delta 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. 2.26 Ω / phase. 4.65 Ω / phase. 8.06 Ω / phase. 6.06 Ω / phase. 2.26 Ω / phase. 4.65 Ω / phase. 8.06 Ω / phase. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A generated station has a maximum demand of 30 MW, a load factor of 60% and a plant capacity factor of 50%. The reserve capacity of the plant is 10 MW 5 MW 6 MW 12 MW 10 MW 5 MW 6 MW 12 MW ANSWER DOWNLOAD EXAMIANS APP
Power Systems The commercial sources of energy are fossile fuels and radioactive substances. wood, animal wastes and agricultural wastes. solar, wind, biomass. none of above. fossile fuels and radioactive substances. wood, animal wastes and agricultural wastes. solar, wind, biomass. none of above. ANSWER DOWNLOAD EXAMIANS APP
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