Understanding the Efficiency of Motors

Malinowski, John; Weihrauch, George
February 2009
Heating/Piping/Air Conditioning Engineering;Feb2009, Vol. 81 Issue 2, p44
The article discusses the potential of using premium-efficiency motors with adjustable-speed drives in the U.S. to save energy. It indicates that these motors use better lamination material and lower-loss cooling fans. Moreover, it also cites on the positive effects of premium-efficiency electric-motor-driven equipment in Europe and the development of a voluntary efficiency-classification scheme for these motors.


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