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Apparent power definitions for three-phase systems

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1 Author(s)
Emanuel, A.E. ; Worcester Polytech. Inst., MA, USA

It is shown that currently used apparent power definitions, namely the arithmetic VA, SA and the vector VA, SV, both lack an important property: the system power losses are not a linear function of the apparent power squared, SA2 or S V2. The only apparent power definition known today, that holds this property for all the possible situations-balanced, unbalanced, sinusoidal or nonsinusoidal-has the mathematical expression suggested by F. Buchholz; and explained by W. Goodhue. This paper gives a set of basic examples meant to emphasize the merit of Buchholz-Goodhue approach

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Power Delivery, IEEE Transactions on  (Volume:14 ,  Issue: 3 )