Power Systems Plug setting of a relay can be altered by varying air gap of magnetic path. no. of ampere-turns. none of these. adjustable back up stop. air gap of magnetic path. no. of ampere-turns. none of these. adjustable back up stop. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The skin effect of conductor will increase when All of these resistivity decrease frequency decrease diameter decrease All of these resistivity decrease frequency decrease diameter decrease ANSWER DOWNLOAD EXAMIANS APP
Power Systems A generating station has a maximum demand of 100 MW, a load factor of 60% and a plant capacity factor of 50%. The reserve capacity of the plant is 15 MW 80 MW 20 MW 10 MW 15 MW 80 MW 20 MW 10 MW ANSWER DOWNLOAD EXAMIANS APP
Power Systems The incremental fuel costs for two generating units G1 and G2 are given by Ic1 = 25 + 0.2 PG1 and Ic2 = 32 + 0.2 PG2, where PG1 and PG2 are real powers generated by the units. The economic allocation for a total load of 250 MW, neglecting transmission loss, is given by PG1 = 109.75 MW and PG2 = 140.25 MW PG1 = 125 MW and PG2 = 125 MW PG1 = 100 MW and PG2 = 150 MW PG1 = 142.5 MW and PG2 = 107.5 MW PG1 = 109.75 MW and PG2 = 140.25 MW PG1 = 125 MW and PG2 = 125 MW PG1 = 100 MW and PG2 = 150 MW PG1 = 142.5 MW and PG2 = 107.5 MW 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 22.5 electrical degrees/s² 125 electrical degrees/s² 225 electrical degrees/s² 12.5 electrical degrees/s² 22.5 electrical degrees/s² 125 electrical degrees/s² 225 electrical degrees/s² 12.5 electrical degrees/s² ANSWER DOWNLOAD EXAMIANS APP
Power Systems For some given transmission line the expression for voltage regulation is given by (Vs - Vr)/Vr *100%. Hence, None of these this must be a short line this expression is true for any line this may either be a medium line or short line None of these this must be a short line this expression is true for any line this may either be a medium line or short line ANSWER DOWNLOAD EXAMIANS APP
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