Power Systems When reactance grounding is used in network, the voltage between neutral and ground is 3×IR0 × Xn IN × Xn IR0 × Xn both 1 and 3 3×IR0 × Xn IN × Xn IR0 × Xn both 1 and 3 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. None of them. 0.09 + j 0.018 per Km. 0.01 + j 0.02 per Km. 0.018 per Km. None of them. 0.09 + j 0.018 per Km. 0.01 + j 0.02 per Km. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following faults is/are treated as external faults? Failure of excitation Failure of prime mover of the generator All of these Over voltage Failure of excitation Failure of prime mover of the generator All of these Over voltage ANSWER DOWNLOAD EXAMIANS APP
Power Systems Maximum efficiency of modern coal fired steam raising thermal power plants is restricted to about 035 (a low value), mainly because of high energy loss in boiler. low steam turbine mechanical efficiency. high energy loss from turbine exhaust to condenser. low alternative efficiency. high energy loss in boiler. low steam turbine mechanical efficiency. high energy loss from turbine exhaust to condenser. low alternative efficiency. ANSWER DOWNLOAD EXAMIANS APP
Power Systems For n bus power system size of Y bus matrix is (n-2)×(n-2) n×n (n-1)×(n-1) (n-1)×(n-2) (n-2)×(n-2) n×n (n-1)×(n-1) (n-1)×(n-2) ANSWER DOWNLOAD EXAMIANS APP
Power Systems On what factors does the selection of a water turbine depend Nature of load. Working head. Speed. All of above. Nature of load. Working head. Speed. All of above. ANSWER DOWNLOAD EXAMIANS APP
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