Power Systems A transmission line is operating under no load has ABCD parameters B = 100∠90° has a phase shift of 0.2 rad, how much shunt reactor is required for compensation of ferranti effect? 2 H 15.9 H 2 mH 15.9 mH 2 H 15.9 H 2 mH 15.9 mH ANSWER DOWNLOAD EXAMIANS APP
Power Systems If sag in an overhead line increase, tension in the line decrease None of these remains same increase decrease None of these remains same increase ANSWER DOWNLOAD EXAMIANS APP
Power Systems Pin insulators are used up to any voltage level 11 kV 120 kV 33 kV any voltage level 11 kV 120 kV 33 kV ANSWER DOWNLOAD EXAMIANS APP
Power Systems In Francis turbine runner, the number blades is usually of the order of 16 - 24. 12 - 14. 6 - 8. 3 - 6. 16 - 24. 12 - 14. 6 - 8. 3 - 6. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of following materials can be used as coolant Any of above. Heavy water. Helium. CO2. Any of above. Heavy water. Helium. CO2. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The neutral of 10 MVA, 11 kV alternator is earthed through a resistance of 5 ohms. The fault ready is set to operate at 0.75 A. The current transformers have a ratio of 1000/5. What is the percentage of the alternator winding is protected? 15% 85% 88.2% 11.8% 15% 85% 88.2% 11.8% ANSWER DOWNLOAD EXAMIANS APP
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