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

A. unity

B. lagging

C. leading

D. zero

Answer: Option C

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Comments ( 2 )

  1. Abdul Samad
    Abdul Samad :
    3 years ago

    at capacitive load where power factor is leading we get minimum voltage regulation

  2. Rahul Kumar
    Rahul Kumar :
    5 years ago

    Negative voltage regulation can only occur with leading power factor loads; however, not all leading loads will cause negative voltage regulation.This is a very undesirable condition because it can lead to an unstable condition. Many loads use more power as the voltage increases. Thus, the voltage goes up, causing the power to go up, potentially causing the voltage to go up some more.

Related Questions on Transformers

A good voltage regulation of a transformer means

A. output voltage fluctuation from no load to full load is least

B. output voltage fluctuation with power factor is least

C. difference between primary and secondary voltage is least

D. difference between primary and secondary voltage is maximum