Power Systems To prevent maloperation of deferentially connected relay while energizing a transformer, the relay restraining coil is biased with 7th harmonic current. 5th harmonic current. 3rd harmonic current. 2nd harmonic current. 7th harmonic current. 5th harmonic current. 3rd harmonic current. 2nd harmonic current. ANSWER DOWNLOAD EXAMIANS APP
Power Systems For a lossy transmission line, the characteristic impedance does not depend on The conductivity of conductors. The operating frequency of the line. The permittivity of the dielectric separating the conductor. The load terminating the line. The conductivity of conductors. The operating frequency of the line. The permittivity of the dielectric separating the conductor. The load terminating the line. ANSWER DOWNLOAD EXAMIANS APP
Power Systems One Kg of natural uranium gives energy equivalent to about 1000 Kg of coal. 100 Kg of coal. 5000 Kg of coal. 10500 Kg of coal. 1000 Kg of coal. 100 Kg of coal. 5000 Kg of coal. 10500 Kg of coal. 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? 8 MJ/MVA 6 MJ/MVA 4 MJ/MVA 2 MJ/MVA 8 MJ/MVA 6 MJ/MVA 4 MJ/MVA 2 MJ/MVA ANSWER DOWNLOAD EXAMIANS APP
Power Systems Non-commercial sources of energy are fossil fuel, hydro power and nuclear power. None of these solar, wind and biomass. wood, animal wastes and agricultural wastes. fossil fuel, hydro power and nuclear power. None of these solar, wind and biomass. wood, animal wastes and agricultural wastes. 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? 2.90 kW 19.60 kW 9.81 kW 4.45 kW 2.90 kW 19.60 kW 9.81 kW 4.45 kW ANSWER DOWNLOAD EXAMIANS APP
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