Power Systems Buchholz relay is used for protection of bus bar. alternator. transformer. none of these. bus bar. alternator. transformer. none of these. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A transmission line has impedance of (0.005 + j0.05) pu. Find the line at which maximum value of negative DC off set current is produced, if it is applied with Vm sinωt? 1.47 msec 2.63 msec 9.68 msec 4.68 msec 1.47 msec 2.63 msec 9.68 msec 4.68 msec ANSWER DOWNLOAD EXAMIANS APP
Power Systems In Francis turbine runner, the number blades is usually of the order of 3 - 6. 6 - 8. 12 - 14. 16 - 24. 3 - 6. 6 - 8. 12 - 14. 16 - 24. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Gross head of an hydroelectric power station is the height of water level in the river where the storage is provided. the difference of water level between the level in storage and tail race. all of above. the height of water level in the river where the tail race is provided. the height of water level in the river where the storage is provided. the difference of water level between the level in storage and tail race. all of above. the height of water level in the river where the tail race is provided. ANSWER DOWNLOAD EXAMIANS APP
Power Systems For 66 kV lines the number of insulator discs of each 11 kV used are 12 6 5 3 12 6 5 3 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 29.28 kV 30.28 kV 28.28 kV 31.28 kV 29.28 kV 30.28 kV ANSWER DOWNLOAD EXAMIANS APP
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