1999•Wiley Encyclopedia of Electrical and Electronics EngineeringRequires access

Power Factor Measurement

Leszek S. Czarnecki

Abstract

Abstract The sections in this article are Power Factor and Its Meaning Power Factor in Single‐Phase, 2‐Phase, and 3‐Phase Balanced Circuits With Sinusoidal Voltage and Current Effects of the Power Factor on the Supply Source Power Factor in 3‐Phase Unbalanced Systems with Sinusoidal Voltages and Currents Power Factor of Linear Loads with Nonsinusoidal Voltage Power Factor of Nonlinear Loads with Sinusoidal Supply Voltage Power Factor Measurement Power Factor Meters Iron‐Vane PF Meters Crossed‐Coil PF Meters Electronic Power Factor Meters Based on Phase‐Shift Angle Measurement Electronic Power Factor Meters Based on the Measurement of the Ratio of Active to Apparent Power

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Key concepts: Power factor, Volt-ampere, Switched-mode power supply, AC power, Electrical engineering, Constant power circuit, Voltage optimisation, Power (physics)