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? 86%% 90% 50% 75% 86%% 90% 50% 75% ANSWER DOWNLOAD EXAMIANS APP
Power Systems By using guard ring in a transmission line, its string efficiency None of these remains unaffected increase decrease None of these remains unaffected increase decrease ANSWER DOWNLOAD EXAMIANS APP
Power Systems Recovery voltage in CB is equal to normal frequency 50 Hz rms voltage. transient voltage. none of these. arcing period voltage. normal frequency 50 Hz rms voltage. transient voltage. none of these. arcing period voltage. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A generating station has a maximum demand of 50 MW a load factor of 60 %, a plant capacity factor of 45 % and if the plant while running as per schedule were fully loaded. The daily energy produced will be 730 MW. 710 MW. 740 MW. 720 MW. 730 MW. 710 MW. 740 MW. 720 MW. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Find the relation between sub transient (X"), transient (X') and synchronous reactance (X) ? X" < X' < X X" > X' >X X" > X' < X X" < X' > X X" < X' < X X" > X' >X X" > X' < X X" < X' > X ANSWER DOWNLOAD EXAMIANS APP
Power Systems Alternate formation and breakage of bubbles are called cavitations. All of these water hamming. surgfication. cavitations. All of these water hamming. surgfication. ANSWER DOWNLOAD EXAMIANS APP
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