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Power Factors


What is it?

Power factor is a way of measuring the percentage of reactive power in an electrical system. Reactive power represents wasted energy...electricity that does no work. Reactive power is the result of electrical current interaction with inductive loads like motors, transformers, fluorescent lights, arc welders and induction furnaces. Electric systems with many motors exhibit low power factor and increased conductor and transformer losses. Power factor can be improved by the addition of shunt capacitors.

Why improve it?

Improving power factor can reduce power losses and free up the capacity of the existing transmission and distribution equipment for both utilities and end-users. Raising power factor to 95 percent and above is a proven way of increasing the efficient use of electricity. End-users enjoy reduced power bills and improved voltage conditions. The utility benefits from lower line and transformer losses, released system capacity and improved factor.


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