A Power Factor (PF) is a measure of an electrical system efficiency that is a ratio of actual power (working power) being used in AC circuit (apparent power): PF = KW/ KVA, (KVA = KW + KVAR) where, kW = working power (W), kVA = kilo volts times amperes, and kVAR = kilo volts times amperes, reactive. A PF is a dimensionless number in the closed interval of 0 (all power is reactive power with no real power) to 1 (all power is real power with no reactive power), and the Power Factor of 1 would mean 100% of the supply is being used efficiently.
Related Definitions in the Project: The Engineering; Electrical Engineering
