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NEMA C12.24 TR
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NEMA C12.24 TR 2011 Edition, January 1, 2011 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.