Power Systems For 66 kV lines the number of insulator discs of each 11 kV used are 3 6 12 5 3 6 12 5 ANSWER DOWNLOAD EXAMIANS APP
Power Systems What are the tests performed for oil-filled and gas-filled cables ? Thermal stability test. Load cycle tests. Impulse tests. All of these. Thermal stability test. Load cycle tests. Impulse tests. All of these. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Where is the draft tube of a hydroelectric plant that is an airtight pipe located In between the runner exhaust and the tail race. In between the penstock and runner. Near the surge tank. At the beginning of the penstock. In between the runner exhaust and the tail race. In between the penstock and runner. Near the surge tank. At the beginning of the penstock. 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? 90% 86%% 50% 75% 90% 86%% 50% 75% ANSWER DOWNLOAD EXAMIANS APP
Power Systems The draw back of NR method as compare to Gauss-Seidel method is/are? both 1 and 2 large number of iterations large requirement of computer memory None of these both 1 and 2 large number of iterations large requirement of computer memory None of these ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following relationships are not valid for short transmission lines Is = Ir A = D = 1 All of these B = C = Z Is = Ir A = D = 1 All of these B = C = Z ANSWER DOWNLOAD EXAMIANS APP
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