Reactive Power
Reactive power is power that oscillates in an electrical system without performing useful work, associated with inductive or capacitive loads, measured in kVAr.
Definition
Reactive power arises from inductive or capacitive loads (such as motors and transformers) and oscillates in the system without performing useful work, measured in kilovolt-amperes reactive (kVAr). It contributes to poor power factor and can result in additional utility charges.
Why It Matters
Excess reactive power drives poor power factor, which can trigger penalty charges — making reactive power a relevant consideration for sites with heavy motor or inductive equipment loads.