Power Systems The Y bus matrix of 100 bus interconnected system is 90% sparse. Hence the number of transmission lines in the system must be 900 250 450 500 900 250 450 500 ANSWER DOWNLOAD EXAMIANS APP
Power Systems The arc voltage produced in an AC circuit breaker is always in phase opposition with the arc current. leading the arc current by 90°. lagging the arc current by 90°. in phase with the arc current. in phase opposition with the arc current. leading the arc current by 90°. lagging the arc current by 90°. in phase with the arc current. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A transmission line has a reactance of 1 Pu is operating at Vs = Vr = 1 Pu. The generator is connected at source end which is delivering 0.5 Pu of active power. Find the load angle? 30° 35° 45° 60° 30° 35° 45° 60° ANSWER DOWNLOAD EXAMIANS APP
Power Systems The commercial sources of energy are wood, animal wastes and agricultural wastes. none of above. solar, wind, biomass. fossile fuels and radioactive substances. wood, animal wastes and agricultural wastes. none of above. solar, wind, biomass. fossile fuels and radioactive substances. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The function of reflector is to stop the chain reaction. bounce back most of the neutrons that escape from the fuel core. reduce the speed of the neutrons. none of above. stop the chain reaction. bounce back most of the neutrons that escape from the fuel core. reduce the speed of the neutrons. none of above. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The zero sequence current of a generator for line to ground fault is j3 pu. Then the current through the neutral during the fault is j9 pu j3 pu j1 pu j6 pu j9 pu j3 pu j1 pu j6 pu ANSWER DOWNLOAD EXAMIANS APP
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