Power Systems The insulation of the modern EHV lines is designed based on the lighting voltage. corona. the switch voltage. R × I. the lighting voltage. corona. the switch voltage. R × I. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A transmission line has a reactance of 1 Pu is operating at Vs = Vr = 1 Pu. The generator is connected at source end which is delivering 0.5 Pu of active power. Find the load angle? 45° 35° 30° 60° 45° 35° 30° 60° ANSWER DOWNLOAD EXAMIANS APP
Power Systems Advantages of shunt compensation is/are All of these smooth voltage regulation is possible by controlling excitation It requires less maintanance single unit can be used as both capacitance and inductor by adjusting the excitation All of these smooth voltage regulation is possible by controlling excitation It requires less maintanance single unit can be used as both capacitance and inductor by adjusting the excitation ANSWER DOWNLOAD EXAMIANS APP
Power Systems If a generator of 250 MVA rating has an inertia constant of 6 MJ/MVA, its inertia constant on 100 MVA base is 10.5 MJ/MVA 6 MJ/MVA 15 MJ/MVA 2.5 MJ/MVA 10.5 MJ/MVA 6 MJ/MVA 15 MJ/MVA 2.5 MJ/MVA ANSWER DOWNLOAD EXAMIANS APP
Power Systems A transmission line has surge impedance of 400 Ω, operating at Vs = Vr = 400 kV line is compensated with a shunt capacitance of 30%. Find the surge impedance loading with compensation? 456 MW 400 MW 386 MW 478 MW 456 MW 400 MW 386 MW 478 MW ANSWER DOWNLOAD EXAMIANS APP
Power Systems Reheat cycle in thermal power plant is used to reduce loss of heat. increase thermal efficiency. utilize heat of flue gases. improve condenser performance. reduce loss of heat. increase thermal efficiency. utilize heat of flue gases. improve condenser performance. ANSWER DOWNLOAD EXAMIANS APP
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