Power Systems An impulse turbine always operates submerged. is most suited for low head and high discharge power plants. makes use of a draft tube. operates by initial complete conversion to kinetic energy. always operates submerged. is most suited for low head and high discharge power plants. makes use of a draft tube. operates by initial complete conversion to kinetic energy. ANSWER DOWNLOAD EXAMIANS APP
Power Systems If, for a given alternator in economic operation mode, the incremental cost is given by (0.012 P + 8) Rs/MWh, dPL/dP = 0.2 and plant λ = 25, then power generation is 1000 MW 1250 MW 750 MW 1500 MW 1000 MW 1250 MW 750 MW 1500 MW ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following is/are the methods of improving transient stability? All of these Fast acting governing system Dynamic breaking Fast acting excitation control All of these Fast acting governing system Dynamic breaking Fast acting excitation control ANSWER DOWNLOAD EXAMIANS APP
Power Systems Two generating stations delivering a powers of P1 = 150 MW, P2 =100 MW and the B coefficients are B11 = 0.005, B22 = 0.002, B12=B21= -0.001. Find the transmission line losses? 102.5 85.5 105.2 95.5 102.5 85.5 105.2 95.5 ANSWER DOWNLOAD EXAMIANS APP
Power Systems Where air circuit breakers are used? Up to 66 kV. Up to 33 kV. Up to 12 kV. Up to 11 kV. Up to 66 kV. Up to 33 kV. Up to 12 kV. Up to 11 kV. 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 4, 10 100, 0.4 4, 0.4 100, 10 4, 10 100, 0.4 ANSWER DOWNLOAD EXAMIANS APP
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