Share this entry

Share this page

power factor

Line breaks: power fac¦tor

Definition of power factor in English:

noun

The ratio of the actual electrical power dissipated by an AC circuit to the product of the r.m.s. values of current and voltage. The difference between the two is caused by reactance in the circuit and represents power that does no useful work.
Example sentences
  • The control unit is configured to generate a control signal indicative of a difference between the actual power factor and the power factor set point.
  • If power factor on a circuit is significantly reduced, current levels, as detected by circuit breakers, could rise, causing breakers to open or fuses to blow.
  • The phase angle between voltages and currents is very important as it relates to the power factor.

Definition of power factor in:

Share this entry

Share this page

 

What do you find interesting about this word or phrase?

Comments that don't adhere to our Community Guidelines may be moderated or removed.

Get more from Oxford Dictionaries

Subscribe to remove ads and access premium resources

Word of the day jaunt
Pronunciation: jônt
noun
a short excursion or journey for pleasure