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 125 MVA 100 MVA 400 MVA 500 MVA 125 MVA 100 MVA 400 MVA ANSWER DOWNLOAD EXAMIANS APP
Power Systems Making and breaking currents of 3 phase AC circuit breakers in power system are respectively in what form? Instantaneous and RMS value any of the above RMS and RMS value RMS and Instantaneous value Instantaneous and RMS value any of the above RMS and RMS value RMS and Instantaneous value ANSWER DOWNLOAD EXAMIANS APP
Power Systems Apart from the skin effect the non uniformity of the current distribution is also caused by All of these bundled conductors ferranti effect proximity effect All of these bundled conductors ferranti effect proximity effect ANSWER DOWNLOAD EXAMIANS APP
Power Systems In thermal power plants the size of coal after crushing 300 mm. 20 - 25 mm. 40 mm. 200 - 205 mm. 300 mm. 20 - 25 mm. 40 mm. 200 - 205 mm. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The positive sequence reactance will be equal to negative sequence if the equipment is none of these. motor. transformer and transmission lines. generator. none of these. motor. transformer and transmission lines. generator. 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 from turbine exhaust to condenser. low alternative efficiency. low steam turbine mechanical efficiency. high energy loss in boiler. high energy loss from turbine exhaust to condenser. low alternative efficiency. low steam turbine mechanical efficiency. high energy loss in boiler. ANSWER DOWNLOAD EXAMIANS APP
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