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WEG Electric Corp.: Energy-Efficient Motors

October 4, 2010
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The Quattro and W22 Super Premium have been added to the company’s line of energy-efficient motors. The Quattro, a line-start permanent magnet motor, is a hybrid model that features a three-phase distributed winding in the stator. The motor operates at synchronous speed regardless of the load, providing no I2R losses in the aluminum cage. It has the same frame size as an induction motor. No feedback device is required for precise speed control. The motor offers low bearing temperature, no special protection relays needed, and synchronized inverter-driven multimotor operation. The W22 Super Premium motor exceeds NEMA Premium levels, with 20 percent fewer losses, says the company. It operates with very low noise levels and high torques. The W22 Super Premium has a 1.25 service factor through the 447T frame size. According to the manufacturer, when paired with an electronic soft starter, the motor is even more efficient.

WEG Electric Corp., 6655 Sugarloaf Parkway, Duluth, GA 30097; 800-275-4934; 770-338-1632 (fax); www.weg.net/us

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