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ABB claims major breakthrough in motor and drive technology
Published: September 2011
ABB describes its new motor as ‘a breakthrough in motor technology’ by making it possible to make motors that are much more efficient and smaller than conventional induction motors — with an efficiency level of IE4. These motors use synchronous-reluctance technology and have practically no losses. They are offered as a complete package with frequency inverter and dedicated software. The motor and drive package is offered in two configurations — one to maximise efficiency and the other to maximise output. The package of motor and drive is specifically designed for variable-speed operation. The high-output package has a power density up to 40% higher than a conventional induction motor, so the motor can be up to two frame sizes smaller than a conventional induction motor. The rotor runs cooler than other technologies, so the bearings also run cooler, making the motor much more reliable, since bearing failure accounts for about 70% of unplanned motor outages, and increasing greasing intervals. For more information on this story, click here: Sept 2011, 178 Related articles: 
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