Power Systems The arc voltage produced in an AC circuit breaker is always leading the arc current by 90°. in phase opposition with the arc current. lagging the arc current by 90°. in phase with the arc current. leading the arc current by 90°. in phase opposition with the arc current. lagging the arc current by 90°. in phase with the arc current. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The positive sequence reactance will be equal to negative sequence if the equipment is motor. generator. none of these. transformer and transmission lines. motor. generator. none of these. transformer and transmission lines. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A 3 layer, total diameter of an ACSR conductor is 5 cm. Find the diameter of each strand? 15 cm 1.5 cm 5 cm 1 cm 15 cm 1.5 cm 5 cm 1 cm ANSWER DOWNLOAD EXAMIANS APP
Power Systems The radiation shield for a nuclear power reactor for biological safety is provided by having the reactor isolated from outside word with strong magnetic field. immersed in water pool. encased thick metal wall. encased by thick concrete wall. isolated from outside word with strong magnetic field. immersed in water pool. encased thick metal wall. encased by thick concrete wall. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A three phase, 33 kV oil circuit breaker is rated 1200 A, 2000 MVA, 3 secs. The symmetrical breaking current is 45 kA. 55 kA. 50 kA. 35 kA. 45 kA. 55 kA. 50 kA. 35 kA. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The voltage regulation of a line at full load 0.8 power factor is 11. A long transmission line under no load conditions, for a good voltage profile needs shunt resistance at receiving end All of these shunt capacitor at receiving end shunt reactor at receiving end shunt resistance at receiving end All of these shunt capacitor at receiving end shunt reactor at receiving end ANSWER DOWNLOAD EXAMIANS APP
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