Power Systems Earth fault relay uses the which of the following sequence currents? any of the above zero sequence positive sequence negative sequence any of the above zero sequence positive sequence negative sequence ANSWER DOWNLOAD EXAMIANS APP
Power Systems In relay coil which is used? Instrument transformer. Potential transformer. Power transformer. Current transformer. Instrument transformer. Potential transformer. Power transformer. Current transformer. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The draw back of NR method as compare to Gauss-Seidel method is/are? both 1 and 2 large number of iterations large requirement of computer memory None of these both 1 and 2 large number of iterations large requirement of computer memory None of these ANSWER DOWNLOAD EXAMIANS APP
Power Systems In a pressurized water reactor heavy water is used as both coolant and moderator. the coolant water boils in the reactor core. water is used at high pressure so that it is available is liquid from at about 280° C. both B and C. heavy water is used as both coolant and moderator. the coolant water boils in the reactor core. water is used at high pressure so that it is available is liquid from at about 280° C. both B and C. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The arc voltage produced in an AC circuit breaker is always 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. leading the arc current by 90°. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A transmission line is compensated with shunt capacitance Csh. If the uncompensated transmission line surge impedance is Zs, then find the new surge impedance Zn after shunt compensation? All of these Zs/√(1 + Kcsh) Zs*√(1 + Kcsh) √(1 + Kcsh)/Zs All of these Zs/√(1 + Kcsh) Zs*√(1 + Kcsh) √(1 + Kcsh)/Zs ANSWER DOWNLOAD EXAMIANS APP
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