Power Systems The shape of the disc of an induction disc relay is none of these. circular. elliptical. spiral. none of these. circular. elliptical. spiral. ANSWER DOWNLOAD EXAMIANS APP
Power Systems In hydro power stations what is an enlarged body of water just above the intake and used as a regulating reservoir called Spillways. Reservoir. Fore bay. Penstock. Spillways. Reservoir. Fore bay. Penstock. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Range of accelerating factor is 50 to 100 10.8 to 11.2 1 to 10 1.6 to 1.8 50 to 100 10.8 to 11.2 1 to 10 1.6 to 1.8 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° 45° 60° 35° 30° 45° 60° 35° ANSWER DOWNLOAD EXAMIANS APP
Power Systems In a short circuit test circuit breaker, time to reach the peak re-striking voltage 60 microsecond & the peak re-striking voltage 120 kV. Determine average RRRV (Rate of rise re-striking voltage)? 3.5 × 106 kV / sec. 3 × 106 kV / sec. 1 × 106 kV / sec. 2 × 106 kV / sec. 3.5 × 106 kV / sec. 3 × 106 kV / sec. 1 × 106 kV / sec. 2 × 106 kV / sec. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A generator has reactances of sub transient (X")= 0.5 pu, transient (X') = 0.8 pu and synchronous reactance (X) = 5 pu. The voltages at these reactances are 1.2 V, 1.1 V and 1 V respectively. Find the corresponding sub transient fault current in pu? 1.375 pu 2.4 pu 0.2 pu 3.975 pu 1.375 pu 2.4 pu 0.2 pu 3.975 pu ANSWER DOWNLOAD EXAMIANS APP
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