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Power and energy, positive and negative

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2 Author(s)
Doggett, L.A. ; Pennsylvania State College, State College ; Tarpley, H.I.

An attempt to clarify the definitions of power, power factor, and related quantities has led to an intensive study which has included a large number of actual test measurements of the quantities involved. Measurements of positive and negative power, and the use of a “power ratio” based upon these 2 quantities are proposed, particularly for circuits in which the voltages and currents are nonsinusoidal or unbalanced. Positive and negative energy and power can be measured approximately with apparatus commercially available.

Published in:

Electrical Engineering  (Volume:54 ,  Issue: 11 )