Power Systems The positive, negative and zero sequence impedances of a transmission line are 0.5,0.5 and 1.1 pu respectively. The self (Zs) and mutual (Zm) impedances of the line will be given by Zs = 0.7 pu, Zm =0.2 pu Zs = 0.5 pu, Zm =0.6 pu Zs = 0.2 pu, Zm =0.7 pu Zs = 0.6 pu, Zm =0.5 pu Zs = 0.7 pu, Zm =0.2 pu Zs = 0.5 pu, Zm =0.6 pu Zs = 0.2 pu, Zm =0.7 pu Zs = 0.6 pu, Zm =0.5 pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems The corona loss on a particular system at 50 Hz is 1 kW/km per phase. What is the corona loss at 60 Hz in kW/km per phase? 1.25 1.13 1 0.89 1.25 1.13 1 0.89 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. 10. 25. 50. 15. 10. 25. 50. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which one of following fuels is used by slow thermal nuclear reaction for power generation U238. Th232. Pu239. U235. U238. Th232. Pu239. U235. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The load current in short circuit calculations are neglected because both 1 and 2 short circuit currents are much larger than load currents nether 1 nor 2 short circuit currents are greatly out of phase with load currents both 1 and 2 short circuit currents are much larger than load currents nether 1 nor 2 short circuit currents are greatly out of phase with load currents ANSWER DOWNLOAD EXAMIANS APP
Power Systems Find the number of insulator discs required in string insulator, if operating voltage is 220 kV and maximum voltage of each disc is 11 kV? 21 10 20 13 21 10 20 13 ANSWER DOWNLOAD EXAMIANS APP
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