Power Systems A transmission line has a surge impedance of 400 Ω for a length of the line of 200 km. If the length of line is increased to 400 km, then its surge impedance is 800 Ω 0 Ω 400 Ω 200 Ω 800 Ω 0 Ω 400 Ω 200 Ω ANSWER DOWNLOAD EXAMIANS APP
Power Systems Pump storage schemes are used to improve the diversity factor. the plant capacity factor as well as the load factor of the power system. the load factor. the power factor. the diversity factor. the plant capacity factor as well as the load factor of the power system. the load factor. the power factor. ANSWER DOWNLOAD EXAMIANS APP
Power Systems In a 3-phase transmission line, each phase is supported by 3 insulated discs, maximum voltage of each disc is 20 kV. Find the operating voltage of the transmission line per phase if efficiency of string is 80.6%. 20 kV 83.76 kV 52.84 kV 48.36 kV 20 kV 83.76 kV 52.84 kV 48.36 kV ANSWER DOWNLOAD EXAMIANS APP
Power Systems If we increase the spacing between the phase conductors, the line capacitance decreases increases remains unaffected None of these decreases increases remains unaffected None of these ANSWER DOWNLOAD EXAMIANS APP
Power Systems Oxide film arrestor has which of the following properties? It is expensive. Installed at points of transmission line where daily visit is difficult. Does not require daily charging. Both A and B. It is expensive. Installed at points of transmission line where daily visit is difficult. Does not require daily charging. Both A and B. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following rotor is used in thermal power plants? either of these squirrel cage rotor cylindrical rotor salient pole rotor either of these squirrel cage rotor cylindrical rotor salient pole rotor ANSWER DOWNLOAD EXAMIANS APP
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