Capehart, Barney L. and Kevin D. Slack, "Power Factor Benefits of High Efficiency Motors," Energy Engineering, Vol. 93, No. 3, pp. 6-18, Fall, 1996.


Many high efficiency motors have higher power factors than the standard motors they replace. For facilities that have power factor penalty charges, carefully choosing a high efficiency motor that also has a higher power factor can result in electric cost savings that will improve the payback time of the more costly, high efficiency motor. This paper discusses the availability of high power factor motors, and quantifies the added benefits that come from reduced power factor charges. Several examples are shown to illustrate these economic benefits.

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