Manufacturing Industry
Copper rotor creates efficiency: Siemens Energy & Automation's motor design lowers energy costs and extends service life.(INDUSTRY WEEK'S: TECHNOLOGY & INNOVATION IN MANUFACTURING AWARDS)(Brief article)
Industry Week, December, 2006 by Purdum, Traci
Aluminum is good, but copper is better--at least when you're talking about die-cast rotors in three-phase induction motors.
Siemens Energy & Automation, based in Alpharetta, Ga., offers a new line of AC motors designed to meet or exceed National Electrical Manufacturers Association (NEMA) standards. Called New NEMA Motors, they feature aluminum and cast-iron frame configurations, and have a unique die-cast copper rotor that is said to reduce power consumption and extend the life of the motor while remaining in the normal frame length and diameter of the regular standard efficient product.
"To penetrate the market, we needed to be the efficiency leader," says John Caroff, Siemens E&A's Norwood, Ohio-based marketing manager. "The best way to get a...
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