Power Systems The surge impedance of a 400 km long overhead transmission line is 420 Ω. For a 200 km length of the same line, the surge impedance will be 420 Ω 840 Ω 210 Ω 400 Ω 420 Ω 840 Ω 210 Ω 400 Ω ANSWER DOWNLOAD EXAMIANS APP
Power Systems Critical mass of the fuel is the amount required to make the multiplication factor equal to factor. less than 1. more than 1. 0.5. equal to factor. less than 1. more than 1. 0.5. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A generator has a rating of 10 MVA, 5 kV has a reactance of 0.02 pu. Find the reactance at a new base values of 50 MVA, 10 kV? 0.025 0.02 0.05 0.25 0.025 0.02 0.05 0.25 ANSWER DOWNLOAD EXAMIANS APP
Power Systems Normally Z bus matrix is a sparse matrix unit matrix full matrix null matrix sparse matrix unit matrix full matrix null matrix ANSWER DOWNLOAD EXAMIANS APP
Power Systems Advantages of higher transmission voltage is/are Area of cross section and volume of the conductor is reduced All of these Transmission line losses are reduced Power transfer capability of the transmission line is increased Area of cross section and volume of the conductor is reduced All of these Transmission line losses are reduced Power transfer capability of the transmission line is increased ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following faults is/are treated as external faults? Failure of excitation Over voltage Failure of prime mover of the generator All of these Failure of excitation Over voltage Failure of prime mover of the generator All of these ANSWER DOWNLOAD EXAMIANS APP
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