Power Systems For which one of the following types of motors, is the equal area criterion for stability applicable? Three phase synchronous motor DC series motor DC shunt motor Three phase induction motor Three phase synchronous motor DC series motor DC shunt motor Three phase induction motor ANSWER DOWNLOAD EXAMIANS APP
Power Systems Positive, negative and zero sequence impedances of line are 2,2 and 5 pu respectively. Find self and mutual impedances respectively? 2 and 5 pu 3 and 1 pu 2 and 2 pu 1 and 3 pu 2 and 5 pu 3 and 1 pu 2 and 2 pu 1 and 3 pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems If the fault current is 2000 A, the relay setting is 50% and CT ratio is 400 : 5, then plug setting multiplier will be 15. 25. 50. 10. 15. 25. 50. 10. ANSWER DOWNLOAD EXAMIANS APP
Power Systems If we increase the spacing between the phase conductors, the line capacitance decreases None of these increases remains unaffected decreases None of these increases remains unaffected ANSWER DOWNLOAD EXAMIANS APP
Power Systems A steam power generation has an overall efficiency of 20 %. 0.6 Kg of coal is burnt per kWh of electrical energy generated. Calculated the calorific value of fuel 7000 KCal / Kg. 7166.67 KCal / Kg. 7268.45 KCal / Kg. 7562 KCal / Kg. 7000 KCal / Kg. 7166.67 KCal / Kg. 7268.45 KCal / Kg. 7562 KCal / Kg. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A cable has inductance of 0.22 mH per km and capacitance of 0.202 µF per km. The surge impedance of the cable is 52 Ω 40 Ω 28 Ω 33 Ω 52 Ω 40 Ω 28 Ω 33 Ω ANSWER DOWNLOAD EXAMIANS APP
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