Son: Die-Cast Copper Motor Rotors: Motor test Results, Copper Compared to Aluminum; Trans
Journal article published in 2010 by
Edwin F. Brush,
John G. Cowie,
Dale T. Peters,
Darryl J. Van Son
Abstract
Motor manufacturers have long realized that because the electrical conductivity of copper is nearly 60 % higher than that of aluminum, substituting copper for aluminum in the squirrel cage of the induction motor would markedly increase the electrical energy efficiency of the machine. Most motors larger than about 200 kW