Copper Rotors Help Meet Unusual Requirements Copper Rotors Help Meet Unusual Requirements - Gaining electrical efficiency levels higher than those obtainable in aluminum-cage premium motors has been a leading motivation — maybe the principal driving force — behind development of copper-rotor motors by the Copper Development Association. Happily, it worked. We now know copper-rotor motors designed specifically for high efficiency do indeed outperform their conventional counterparts, usually by between one and several percentage points, a very significant improvement. Of course, that high level of efficiency can be traded off against size and weight reduction and/or higher power rating, but it is the ability to consume less energy for a given horsepower output (and thereby reduce life-cycle costs) that usually certifies the copper motors’ commercial value. MORE >>

Update: Copper Motor Rotor is published monthly by the Copper Development Association Inc. to provide current information of interest to those in the electric motor and related industries. CDA assumes no responsibility or liability in connection with this publication and makes no warranties of any kind with respect to the information contained herein.