Power Systems The inertia constant of 100 MVA, 50 Hz, 4 pole generator is 10 MJ/MVA. If the mechanical input to the machine is suddenly raised from 50 MW to 75 MW, the rotor acceleration will be equal to 125 electrical degrees/s² 22.5 electrical degrees/s² 225 electrical degrees/s² 12.5 electrical degrees/s² 125 electrical degrees/s² 22.5 electrical degrees/s² 225 electrical degrees/s² 12.5 electrical degrees/s² ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following is/are advantages of N-R method? Number of iterations are less Applicable for large power system network both 1 and 2 Time taken for each iteration is less Number of iterations are less Applicable for large power system network both 1 and 2 Time taken for each iteration is less ANSWER DOWNLOAD EXAMIANS APP
Power Systems Operator "a" rotates a vector anti clock wise direction clock wise direction nether 1 nor 2 either 1 or 2 anti clock wise direction clock wise direction nether 1 nor 2 either 1 or 2 ANSWER DOWNLOAD EXAMIANS APP
Power Systems In a 400 KV network, 360 KV is recorded at a 400 KV bus. The reactive power absorbed by shunt rated for 50 MVAr, 400 KV connected at the bus is 55.56 MVAr. 40.5 MVAr. 61.73 MVAr. 45 MVAr. 55.56 MVAr. 40.5 MVAr. 61.73 MVAr. 45 MVAr. ANSWER DOWNLOAD EXAMIANS APP
Power Systems If R = 84 ohm/Km, G = 10-6 mho/Km, H = 0.01 H/Km, C = 0.061 μ F/Km and frequency = 1000 Hz, then what is the value of propagation constant of the transmission line 0.018 per Km. 0.01 + j 0.02 per Km. None of them. 0.09 + j 0.018 per Km. 0.018 per Km. 0.01 + j 0.02 per Km. None of them. 0.09 + j 0.018 per Km. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Fault calculations using computer are usually done by Z bus method None of these Y bus method either 1 or 2 Z bus method None of these Y bus method either 1 or 2 ANSWER DOWNLOAD EXAMIANS APP
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