New Motors Provide Energy-Efficient Options
WEG Electric Corp. introduces two motors designed to increase energy savings. The Quattro, a line-start permanent magnet motor, is a hybrid model that features a three-phase distributed winding in the stator. It operates at IEC-established IE4 efficiency levels. The Quattro is more efficient than NEMA Premium efficiency induction motors. The motor operates at synchronous speed regardless of the load, providing no I2R losses in the aluminum cage. The Quattro also features the same frame size as an induction motor, low bearing temperature, and synchronized inverter-driven multi-motor operation. Another new motor is the W22 Super Premium. This motor exceeds NEMA Premium levels with 20% fewer losses. The model is the most efficient model in the W22 product line. The motor is two efficiency bands over premium motors and operates with very low noise levels and high torques. The W22 Super Premium has a 1.25 Service Factor through the 447T fame size. Both energy-efficient models will be available for order by September 2010.