Economics of Power Generation When the power factor is unity, the relation between line currnet I and supply voltage V is I leads V by 90° I is in phase with V None of the listed here I lags V by 90° I leads V by 90° I is in phase with V None of the listed here I lags V by 90° ANSWER DOWNLOAD EXAMIANS APP
Economics of Power Generation Which of the following is the disadvantage due to low power factor ? Increased transmission losses Poor voltage regulation All of these High cost of equipment for a given load Increased transmission losses Poor voltage regulation All of these High cost of equipment for a given load ANSWER DOWNLOAD EXAMIANS APP
Economics of Power Generation A 130 MW generator is usually ____ cooled. Air Oxygen Hydrogen Nitrogen Air Oxygen Hydrogen Nitrogen ANSWER DOWNLOAD EXAMIANS APP
Economics of Power Generation The most economical power factor for a consumer is generally 0.6 lagging 1 0.95 lagging 0.75 lagging 0.6 lagging 1 0.95 lagging 0.75 lagging ANSWER DOWNLOAD EXAMIANS APP
Economics of Power Generation In a 3 phase system, the line losses are W at a p. f. Of 1 . If the power factor becomes 0.8 lagging, the losses will becomes 1.25 W 0.8 W 1.57 W 2 W 1.25 W 0.8 W 1.57 W 2 W ANSWER DOWNLOAD EXAMIANS APP
Economics of Power Generation A load draws a power of 10 kW at a power factor of 0.707 lagging. The lagging kVAR drawn from the supply will be 20 kVAR 5 kVAR 15kVAR 10 kVAR 20 kVAR 5 kVAR 15kVAR 10 kVAR ANSWER DOWNLOAD EXAMIANS APP
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