This document provides quantity definitions for designing and using instrumentation for the measurement of electric power quantities under sinusoidal, nonsinusoidal, balanced, and unbalanced conditions.

This Standard is intended for use in designing and using instrumentation for the measurement of electric power quantities under sinusoidal, nonsinusoidal, balanced, and unbalanced conditions. Because there are major differences between this document and its predecessor, some of the material is pedagogical in nature.