Power Systems A synchronous generator is of 100 MVA have inertia constant of 20 MJ/MVA. Find the angular momentum in MJsec/electrical degrees 0.4 0.22 2000 5 0.4 0.22 2000 5 ANSWER DOWNLOAD EXAMIANS APP
Power Systems Taking the density of water to be 1000 kg/m³, how much power would be developed by a hydro electric generator unit, assume 100% efficiency, with 1 m head and 1 m³/s discharge? 4.45 kW 2.90 kW 19.60 kW 9.81 kW 4.45 kW 2.90 kW 19.60 kW 9.81 kW ANSWER DOWNLOAD EXAMIANS APP
Power Systems Surge impedance loading of a transmission line can be increased by addition of lumped capacitance in series addition of lumped inductance in parallel increasing its voltage level both 1 and 3 addition of lumped capacitance in series addition of lumped inductance in parallel increasing its voltage level both 1 and 3 ANSWER DOWNLOAD EXAMIANS APP
Power Systems The line currents of 3-phase supply are: IR = 3 + j 5 A IY =2 + j 2 A IB = -2 - j 1 A The zero sequence current will be 5 + j 7 A 1 + j 2 A -2 - j 1 A 1 + j 4 A 5 + j 7 A 1 + j 2 A -2 - j 1 A 1 + j 4 A ANSWER DOWNLOAD EXAMIANS APP
Power Systems Power transmission lines are transposed to reduce proximity effect skin effect radio interference ferranti effect proximity effect skin effect radio interference ferranti effect 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? 4 MJ/MVA 6 MJ/MVA 2 MJ/MVA 8 MJ/MVA 4 MJ/MVA 6 MJ/MVA 2 MJ/MVA 8 MJ/MVA ANSWER DOWNLOAD EXAMIANS APP
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