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


Status: Active
Document ID: 100197
NEMA C12.24 TR-2011   [BUY]

Establishes names and mathematical definitions for the volt-ampere (VA), volt-ampere hours (Vah), volt-ampere reactive (VAR) and volt-ampere reactive hours (VARh), formulae used by polyphase electricity meters. The mathematical definitions assume static waveforms.


Published Date: Oct.21.2011
Number of pages: 34
Document ID: 100197

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