Power Systems A transmission line has 50 km operating at frequency of 500 Hz. Find the type of the line? short transmission line medium transmission line long transmission line any of the above short transmission line medium transmission line long transmission line any of the above ANSWER DOWNLOAD EXAMIANS APP
Power Systems A 3 core cable gives on test a capacitance of 3.7 µF between two cores. Find the line charging current of the cable when it is connected to 11 kV, 50 Hz system? 14.76 A. 1 A. 14.7 mA. 1.476 A. 14.76 A. 1 A. 14.7 mA. 1.476 A. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A string type insulator has three units with self capacitance C and ground capacitance of 0.2 C having a string efficiency of 76% 78% 82% 80% 76% 78% 82% 80% ANSWER DOWNLOAD EXAMIANS APP
Power Systems A generator has reactances of sub transient (X")= 0.5 pu, transient (X') = 0.8 pu and synchronous reactance (X) = 5 pu. The voltages at these reactances are 1.2 V, 1.1 V and 1 V respectively. Find the corresponding sub transient fault current in pu? 0.2 pu 3.975 pu 2.4 pu 1.375 pu 0.2 pu 3.975 pu 2.4 pu 1.375 pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems If the inertia constant H = 10 MJ/MVA for a 50 MVA generator, the stored energy is 5 MJ 10 MJ 500 MJ 50 MJ 5 MJ 10 MJ 500 MJ 50 MJ 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? 72 MW 50 MW 720 MW 30 MW 72 MW 50 MW 720 MW 30 MW ANSWER DOWNLOAD EXAMIANS APP
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