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NEMA C12.24 TR

2011 Edition, January 1, 2011

Complete Document

Definitions for Calculations of VA, VAh, VAR, and VARh for Poly-Phase Electricity Meters



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Description / Abstract:

This technical report establishes names and mathematical definitions for the Volt-Ampere (VA), Volt-Ampere hours (VAh), Volt-Amperes Reactive (VAR), and Volt-Ampere Reactive hours (VARh) formulae used by poly-phase electricity meters. The mathematical definitions assume static waveforms.
ANSI/NEMA MW 1000, 2014