Power Systems A thermal power plant is being supplied with coal having much more ash content than that for which it was designed. Which of its following units needs major modifications Ash handling unit. Pulversing unit. Cooling tower. Condenser. Ash handling unit. Pulversing unit. Cooling tower. Condenser. ANSWER DOWNLOAD EXAMIANS APP
Power Systems In a 4 bus,4×4 Y bus matrix the number of non zero elements are 12. Find the number of transmission lines? 4 8 2 5 4 8 2 5 ANSWER DOWNLOAD EXAMIANS APP
Power Systems A power station has a maximum demand of 15000 kW. The annual load factor is 50% and plant capacity factor is 40%. What is the reserve capacity of the plant? 3000 kW 3750 kW 6000 kW 7500 kW 3000 kW 3750 kW 6000 kW 7500 kW 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. 14 %. 28 %. None of above 56 %. 14 %. 28 %. None of above 56 %. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following is/are the advantages of synchronous phase modifier over the shunt compensation? both 1 and 2 smooth voltage regulation is possible by controlling excitation single unit can be used as both capacitance and inductor by adjusting the excitation initial cost is low both 1 and 2 smooth voltage regulation is possible by controlling excitation single unit can be used as both capacitance and inductor by adjusting the excitation initial cost is low ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following statements is/are true regarding HVDC? There is no skin effect in dc line All of these HVDC can utilize earth for its return path Corona loss is very much reduced in the dc line There is no skin effect in dc line All of these HVDC can utilize earth for its return path Corona loss is very much reduced in the dc line ANSWER DOWNLOAD EXAMIANS APP
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