Schneider Electric 4000 Overall Power 2 Fundamental Power , Harmonic Power =, Distortion Power Factor = Overall Power Power Factor Fundamental Power Power Factor

63230-300-212 Chapter4—Metering Capa bilities

April 2001 PowerAnalysisValues

•DisplacementPower Factor. Power factor (PF) repre sents the degree to

whichvoltage and current coming into a load areout of phase. When true

powerfactor is based on the angle between the fundamental components

of current and voltage.

•Harmonic Values.Harmonics can reduce the capacity of the power

system.The circuit monitor determines the individual per-phaseharmonic

magnitudes and anglesthrough the 63rd harmonic for all currents and

voltages.The harmonic magnitudes can be formatted as either a

percentageof the fundamental (default)or a percentage of the rms value.

Referto “Setting Up Individual Harmonic Calculations”on page 190 in

Appendix B—Usingthe Command Interface for information on how to

configure harmoniccalculations.

•Harmonic Power.Harmonic power is an indication of the non-

fundamentalcomponents of current and powerin the electrical circuit. The

circuit monitoruses the following equation to calculate harmonic power.

•Distortion Power Factor.Distortion power factor is an indication of the

distortionpower content of non-linearloads. Linear loads do not contribute

to distortion powereven when harmonics are present. Distortion power

factorprovides a way to describe distortion in terms of its total contribution

to apparent power.The circuit monitor uses the following equation to

calculate thedistort ionpower factor.

Overall Power2Fundamental Power 2

Harmonic Power =Distortion Power Factor = Overall Power Power FactorFundamental Power Power Factor