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 0.6 lag 0.8 lead 0.8 lag 0.6 lead 0.6 lag 0.8 lead ANSWER DOWNLOAD EXAMIANS APP
Power Systems Gas coolled reactor use coolant at pressure of 14-28 Kg/cm2 and at temperature of 700°-800° c. use heavy water as coolant as well as moderator. use CO2. or helium as coolant and graphite the moderator. both B and C. use coolant at pressure of 14-28 Kg/cm2 and at temperature of 700°-800° c. use heavy water as coolant as well as moderator. use CO2. or helium as coolant and graphite the moderator. both B and C. ANSWER DOWNLOAD EXAMIANS APP
Power Systems In a Gauss Seidel load flow method, the number of iterations may be reduced if the correction in voltage at each bus is multiplied by Acceleration factor Blocking factor Gauss constant Lagrange multiplier Acceleration factor Blocking factor Gauss constant Lagrange multiplier ANSWER DOWNLOAD EXAMIANS APP
Power Systems A Pelton wheel turbine having a rated speed of 300 rpm is connected to an alternator to produce power at 50 Hz. The number of poles required in the alternator is 8 4 20 10 8 4 20 10 ANSWER DOWNLOAD EXAMIANS APP
Power Systems The pu parameters for a 500 MVA machine on its own base are: Inertia, H = 20 pu; reactance X = 2 pu. The pu values of inertia and reactance on 100 MVA common base, respectively, are 4, 0.4 100, 10 100, 0.4 4, 10 4, 0.4 100, 10 100, 0.4 4, 10 ANSWER DOWNLOAD EXAMIANS APP
Power Systems Two insulator discs of identical capacitance value C make up a string for a 22 kV, 50 Hz, single phase overhead line insulation system. If pin to earth capacitance is also C, then find the string efficiency? 50% 90% 86%% 75% 50% 90% 86%% 75% ANSWER DOWNLOAD EXAMIANS APP
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