Why capacitors are used in power factor correction?

Capacitors are used in power factor correction because they help to improve the power factor by relieving the supply line of the reactive power.

The capacitor achieves this by storing the magnetic reversal energy.

Power factor correction uses parallel connected capacitors to oppose the effects of inductive elements and reduce the phase shift between the voltage and current.

This technique uses capacitors to reduce the reactive power component of an AC circuit in order to improve its efficiency and reduce current.