5.6 Average Power, Reactive Power and Power Factor Correction: An Application
PF Correction Apparent Power1 Power Factor2 Source Voltage3
Without 21.78 KVA 0.74 Lag 130 V.
With 16.27 KVA 0.83 Lag 130 V.
1 Apparent power is germane to the source’s size (rating) and therefore its capital cost
2 The power factor indicates the percentage of the source’s apparent power that is real power (83% versus 74%) and thus is a measure of the source’s efficacy
3 Although this voltage is invariant across cases here, in practice, voltage regulation is usually improved by power-factor correction