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%. 52.84 kV 20 kV 48.36 kV 83.76 kV 52.84 kV 20 kV 48.36 kV 83.76 kV ANSWER DOWNLOAD EXAMIANS APP
Power Systems A 50 Hz, 17.32 kV generator is connected to a power system. The system reactance and capacitance per phase are 10 mH and 0.2 mF respectively. What is the maximum voltage across the contacts of the circuit breaker at an instant when it passes through zero? 29.28 kV 31.28 kV 30.28 kV 28.28 kV 29.28 kV 31.28 kV 30.28 kV 28.28 kV ANSWER DOWNLOAD EXAMIANS APP
Power Systems Keeping in view the cost and overall effectiveness, the following circuit breaker is best suited for capacitor bank switching? Vacuum CB. SF6 CB. Oil CB. Air blast CB. Vacuum CB. SF6 CB. Oil CB. Air blast CB. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Apart from the skin effect the non uniformity of the current distribution is also caused by ferranti effect bundled conductors All of these proximity effect ferranti effect bundled conductors All of these proximity effect ANSWER DOWNLOAD EXAMIANS APP
Power Systems If the fault is very nearer to the generator, the fault current is zero less any of the above larger zero less any of the above larger ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following buses is/are not PV buses? both 1 and 2 voltage control buses reactive power support buses fixed shunt capacitor buses both 1 and 2 voltage control buses reactive power support buses fixed shunt capacitor buses ANSWER DOWNLOAD EXAMIANS APP
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