Reactive power is utilized to control voltage on the transmission network, particularly, the portion of the electrical power flow incapable of performing real work or energy transfer (See Real Power). Reactive power is that portion of electricity that establishes and sustains the electric and magnetic fields of alternating current equipment. It must be supplied to most types of magnetic equipment, such as motors and transformers. It also must supply the reactive losses on transmission facilities. Reactive power is provided by generators, synchronous condensers, or electrostatic equipment, such as capacitors, and directly influences electric system voltage. It is measured in megavars.
« Back to Glossary Index
Sign Up for Updates
"*" indicates required fields