Power Systems A 1-phase transmission line has an impedance (4 + 3j ) Ω. Find the power factor of the load for zero voltage regulation? 0.8 lag 0.6 lead 0.8 lead 0.6 lag 0.8 lag 0.6 lead 0.8 lead 0.6 lag ANSWER DOWNLOAD EXAMIANS APP
Power Systems A 1- phase transmission line operating at 30 kV has radius of 1 cm and distance between conductors is 0.5 m. Assume m = δ =1, g = 21 kV/cm and frequency f = 50 Hz. Find the critical disruptive voltage? 82.15 kV/phase 41.075 kV/phase 17.32 kV/phase 34.64 kV/phase 82.15 kV/phase 41.075 kV/phase 17.32 kV/phase 34.64 kV/phase ANSWER DOWNLOAD EXAMIANS APP
Power Systems The conversion ratio of a breeder reactor is equal to unity. none of above. more than unity. less than unity. equal to unity. none of above. more than unity. less than unity. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A transmission line has a surge impedance of 400 Ω is connected with the cable having surge impedance of 40 Ω, a surge magnitude of 100 kV is travelling from the transmission line towards the cable. Find the incident current? 200 A 2500 A 250 A 100 A 200 A 2500 A 250 A 100 A ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following is/are the disadvantages of phase modifiers? All of these Initial cost of synchronous phase modifier is higher It consumes both active and reactive power It requires more maintenance because of running equipment All of these Initial cost of synchronous phase modifier is higher It consumes both active and reactive power It requires more maintenance because of running equipment ANSWER DOWNLOAD EXAMIANS APP
Power Systems Sum of the elements of row i equal to shunt admittances connected to bus i. If this summation is zero, indicates there is no shunt admittance both 1 and 2 None of these mutual coupling shunt admittance both 1 and 2 None of these mutual coupling ANSWER DOWNLOAD EXAMIANS APP
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