Power Systems The maximum efficiency of modern coal fired steam steam raising thermal power plants is restricted to about 0.35( a low value), mainly because of high energy loss in condenser low steam turbine mechanical efficiency high energy loss in boilers low alternator efficiency high energy loss in condenser low steam turbine mechanical efficiency high energy loss in boilers low alternator efficiency ANSWER DOWNLOAD EXAMIANS APP
Power Systems A 25 MVA, 11 kV alternator is supplying full load at a point of 0.75 lagging. Determine the percentage increase in earning capacity when it is operated at improved power factor of 0.96 lagging. 28 %. 14 %. None of above 56 %. 28 %. 14 %. None of above 56 %. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A cable has the following characteristics, L = 0.201 µH/m and C = 196.2 pF/m. The velocity of wave propagation through cable is 159.24 m/µs 159.24 m/s 32 m/s 0.0312 m/s 159.24 m/µs 159.24 m/s 32 m/s 0.0312 m/s ANSWER DOWNLOAD EXAMIANS APP
Power Systems A generating station has a maximum demand of 50 MW a load factor of 60 %, a plant capacity factor of 45 % and if the plant while running as per schedule were fully loaded. The daily energy produced will be 730 MW. 720 MW. 710 MW. 740 MW. 730 MW. 720 MW. 710 MW. 740 MW. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Hydro-graph is similar to load curve. mass curve. energy load curve. both B and C. load curve. mass curve. energy load curve. both B and C. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Earth fault relay uses the which of the following sequence currents? zero sequence positive sequence negative sequence any of the above zero sequence positive sequence negative sequence any of the above ANSWER DOWNLOAD EXAMIANS APP
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