Power Systems A transmission line has a reactance of 1 Pu is operating at Vs = Vr = 1 Pu. The generator is connected at source end which is delivering 0.5 Pu of active power. Find the load angle? 45° 30° 60° 35° 45° 30° 60° 35° ANSWER DOWNLOAD EXAMIANS APP
Power Systems The corona loss on a particular system at 60 Hz is 1 kW/km per phase. What is the corona loss at 50 Hz in kW/km per phase? 1.13 0.882 1 0.93 1.13 0.882 1 0.93 ANSWER DOWNLOAD EXAMIANS APP
Power Systems Four identical alternators each are rated for 20 MVA, 11 KV having a subtransient reactance of 16% are working in parallel. The short circuit level at the busbar is 500 MVA 400 MVA 125 MVA 100 MVA 500 MVA 400 MVA 125 MVA 100 MVA ANSWER DOWNLOAD EXAMIANS APP
Power Systems The Gauss Seidel load flow method has following disadvantages. Which of the following statement is wrong? Unreliable convergence Choice of slack bus affects the convergence A good initial guess for voltages is essential for convergence Slow convergence Unreliable convergence Choice of slack bus affects the convergence A good initial guess for voltages is essential for convergence Slow convergence ANSWER DOWNLOAD EXAMIANS APP
Power Systems For head and low discharge the water turbine used Pelton wheel. Francis turbine. Kaplan wheel. propeller turbine. Pelton wheel. Francis turbine. Kaplan wheel. propeller turbine. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The only place where slip ring induction motors used in thermal power plants is lubrication oil pumps. none of above. conveyors. coal handling plant. lubrication oil pumps. none of above. conveyors. coal handling plant. ANSWER DOWNLOAD EXAMIANS APP
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