Power Systems An ACSR conductor has a diameter of 2 cm has internal inductance of 0.05 mH/Km. If this ACSR is replaced with another having a diameter of 4 cm then its internal inductance is 0 mH/Km 0.1 mH/Km 0.025 mH/Km 0.05 mH/Km 0 mH/Km 0.1 mH/Km 0.025 mH/Km 0.05 mH/Km ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of following is a medium and low head turbines Pelton and Kaplan turbines. Francis and Kaplan turbines. Kaplan and Francis turbines. None of above. Pelton and Kaplan turbines. Francis and Kaplan turbines. Kaplan and Francis turbines. None of above. ANSWER DOWNLOAD EXAMIANS APP
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 Operating cost of thermal power station is less than that of nuclear power plant. less than that of diesel power plant. less than that of hydroelectric power plant. is the same as that of nuclear power plant. less than that of nuclear power plant. less than that of diesel power plant. less than that of hydroelectric power plant. is the same as that of nuclear power plant. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Lightning arresters are used for All of these protection of equipment from short circuits protection of equipment from open circuits protection of equipment from external lightning All of these protection of equipment from short circuits protection of equipment from open circuits protection of equipment from external lightning ANSWER DOWNLOAD EXAMIANS APP
Power Systems In a 3-phase transmission line, each phase is supported by 3 insulated discs, maximum voltage of each disc is 20 kV. Find the operating voltage of the transmission line per phase if efficiency of string is 80.6%. 20 kV 52.84 kV 83.76 kV 48.36 kV 20 kV 52.84 kV 83.76 kV 48.36 kV ANSWER DOWNLOAD EXAMIANS APP
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