Minimum voltage regulation occurs when the power factor of the load is?

1 Answer

Answer :

Minimum voltage regulation occurs when the power factor of the load is leading.

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Last Answer : A good voltage regulation of a transformer means output voltage fluctuation from no load to full load is least.

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Description : In a synchronous generator delivering lagging power factor load  (1) the excitation emf leads terminal voltage by the power angle (2) the excitation emf lags terminal voltage by the power angle (3) ... by the power factor angle (4) excitation emf lags the terminal voltage by the power factor angle

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Last Answer : If the load of the normally excited synchronous motor is increased the power factor will become lagging.

Description : The synchronous motor which works on leading power factor and does not drive any mechanical load is called?

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Last Answer : High load factor indicates total plant capacity is utilised for most of the time.

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Last Answer : A transformer can have regulation closer to zero on leading power factor.

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Description : Define line regulation and load regulation.

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Description : The following formula is correct:  (A) Load factor=Average load for a period/ Peak load for the same period  (B) Load factor=Average load for a period x Peak load for the same period  (C) Load factor=Average load for a period + Peak load for the same period  (D) All of the above

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Description : State why nuclear power plants are used as base load plants and diesel power plants as a peak load plant. 

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Last Answer : The power consumed by a balanced 3-ph load is measured by two-wattmeter method. The meter readings are 8 kW and 4 kW. The power factor of the load is between 0.5 and unity

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Description : What is meant by Power factor?

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Description : Why capacitors are used to improve power factor?

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Description : Draw and explain bulk correction method for power factor & control.

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