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? 90% 75% 50% 86%% 90% 75% 50% 86%% ANSWER DOWNLOAD EXAMIANS APP
Power Systems Where do compounding done in thermal power plants Coal handling plant. Generator. Ash handling plant. Turbine. Coal handling plant. Generator. Ash handling plant. Turbine. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which statement is not correct for the transmission line parameter R, L, G and C The line parameter R,L,G and C are uniformly distributed along the entire length of the line C. For each line, the conductors are characterized by σ c, μ c, εo = ε c and the homog At high frequencies at which most of communication system operate the internal inductance of the conductor is neglected. G = I/R. R is the AC resistance per unit length of conductor C. The line parameter R,L,G and C are uniformly distributed along the entire length of the line C. For each line, the conductors are characterized by σ c, μ c, εo = ε c and the homog At high frequencies at which most of communication system operate the internal inductance of the conductor is neglected. G = I/R. R is the AC resistance per unit length of conductor C. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Mho relay is used for the protection of long transmission lines. medium length lines. short length lines. no length criterion. long transmission lines. medium length lines. short length lines. no length criterion. ANSWER DOWNLOAD EXAMIANS APP
Power Systems If in a line, resistance and reactance are found to be equal and regulation is zero, then load will have 0.707 lagging power factor 0.707 leading power factor zero power factor unity power factor 0.707 lagging power factor 0.707 leading power factor zero power factor unity power factor 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
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