What is Leading Power Factor?
The utilization of a capacitive load in an alternating current electrical circuit results in a leading power factor. As with a purely capacitive load (or) a resistive-capacitive load combination, the current leads the supply voltage.
This provides rise to the power factor, which is often described as leading in nature.
The power factor is defined as the ratio of genuine power to apparent power. In general, with a sinusoidal waveform, the power factor is the cosine function of the phase angle between voltage and current.
The leading power factor occurs when current exceeds voltage.
This typically occurs when the load is capacitive, that include in capacitor banks or some types of lighting.
A leading power factor is sometimes desirable for the power systems as it can assist offset the impacts of inductive loads, which typically result in a lagging power factor.
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