Power Systems Which of the following relays are used in protection of medium transmission lines? Impedance relays Mho relays Admittance relays any of the above Impedance relays Mho relays Admittance relays any of the above ANSWER DOWNLOAD EXAMIANS APP
Power Systems The draw back of NR method as compare to Gauss-Seidel method is/are? large requirement of computer memory large number of iterations both 1 and 2 None of these large requirement of computer memory large number of iterations both 1 and 2 None of these ANSWER DOWNLOAD EXAMIANS APP
Power Systems For 800 MJ stored energy in the rotor at synchronous speed, what is the inertia constant H for a 50 Hz, four pole turbo generator rated 100 MVA, 11 kV? 2 MJ/MVA 8 MJ/MVA 4 MJ/MVA 6 MJ/MVA 2 MJ/MVA 8 MJ/MVA 4 MJ/MVA 6 MJ/MVA ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following method is used for changing power factor from leading to lagging shunt reactor series capacitor any of the above shunt capacitor shunt reactor series capacitor any of the above shunt capacitor 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? 75% 86%% 90% 50% 75% 86%% 90% 50% ANSWER DOWNLOAD EXAMIANS APP
Power Systems The daily energy produced in thermal power station is 720 MWh at a load factor of 0.6. What is the maximum demand of the station? 50 MW 30 MW 720 MW 72 MW 50 MW 30 MW 720 MW 72 MW ANSWER DOWNLOAD EXAMIANS APP
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