Power Systems Which of following is a medium and low head turbines Pelton and Kaplan turbines. Francis and Kaplan turbines. Kaplan and Francis turbines. None of above. Pelton and Kaplan turbines. Francis and Kaplan turbines. Kaplan and Francis turbines. None of above. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A transmission line has an impedance of (2+j6) Ω has voltage regulation of 10% at a load power factor of 0.8 lag. Find the voltage regulation for a load of 0.6 lead -10% 10% -6.92% 6.92% -10% 10% -6.92% 6.92% ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following is/are the advantages of synchronous phase modifier over the shunt compensation? both 1 and 2 initial cost is low smooth voltage regulation is possible by controlling excitation single unit can be used as both capacitance and inductor by adjusting the excitation both 1 and 2 initial cost is low smooth voltage regulation is possible by controlling excitation single unit can be used as both capacitance and inductor by adjusting the excitation ANSWER DOWNLOAD EXAMIANS APP
Power Systems In which of the following frequency control method tie line may be overloaded? flat tie line control flat frequency control parallel frequency All of these flat tie line control flat frequency control parallel frequency All of these ANSWER DOWNLOAD EXAMIANS APP
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 400 Ω 0 Ω 200 Ω 800 Ω 400 Ω 0 Ω 200 Ω ANSWER DOWNLOAD EXAMIANS APP
Power Systems Making and breaking currents of 3 phase AC circuit breakers in power system are respectively in what form? RMS and Instantaneous value RMS and RMS value any of the above Instantaneous and RMS value RMS and Instantaneous value RMS and RMS value any of the above Instantaneous and RMS value ANSWER DOWNLOAD EXAMIANS APP
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