Power Factor

POWER FACTOR P024

In direct current applications, watts are defined as voltage times amperage, but in alternating current the voltage leads or lags behind the amperage.

Power factor is a measurement of this leading or lagging. The power factor at which a motor operates is dependent on the design of the motor, and is established at rated voltage, frequency and power output.

Power Factor = Real Power/Apparent Power

Power factor can be improved either by purtchasing motors with inherently high power factor (synchronous motors,) or installing power factor correction capacitors.

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  • On February 16, 2018