Power Systems A string insulator has 4 units. The voltage across bottom most unit is 10 kV and its efficiency is 90%. Find the total operating phase voltage? 40 kV 36 kV 32 kV 45 kV 40 kV 36 kV 32 kV 45 kV ANSWER DOWNLOAD EXAMIANS APP
Power Systems Storage requirement can be determined from mass Curve. flow duration curve. both B and C. hydro-graph. mass Curve. flow duration curve. both B and C. hydro-graph. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The insulation resistance of the 20 km long underground cable is 8 MΩ. Other things being same, the insulation resistance of 10 km long cable will be 4 MΩ 8 MΩ 32 MΩ 16 MΩ 4 MΩ 8 MΩ 32 MΩ 16 MΩ 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? 28.28 kV 31.28 kV 30.28 kV 29.28 kV 28.28 kV 31.28 kV 30.28 kV 29.28 kV ANSWER DOWNLOAD EXAMIANS APP
Power Systems Buchholz relay is used for protection of none of these. transformer. bus bar. alternator. none of these. transformer. bus bar. alternator. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following plants has the maximum eapital cost Nuclear plants. Diesel plants. Hydro-plants. Steam plants. Nuclear plants. Diesel plants. Hydro-plants. Steam plants. ANSWER DOWNLOAD EXAMIANS APP
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