Bauer Gear Motor launch new S Series motor
Company introduces the world’s first Ex-approved permanent magnet synchronous motor
BAUER Gear Motor GmbH have launched the world’s first Ex-rated, IE4 super premium efficiency motor – the S Series. An IE4 rating is the highest energy efficiency that can currently be achieved in motor technology, making the S Series one of the most efficient motors for use in explosion hazardous areas.
The launch of the S Series means that applications, which require motors to be specified and designed to meet ATEX classifications, can now benefit from similar energy savings as found in other industrial areas.
Currently, most Ex e (Increased Safety) rated variable speed three-phase induction motors on the market are generally available in standard efficiency class IE1. While the efficiency of these can be improved with the addition of frequency inverters, Bauer say they still fall well short in comparison to the improved design of IE3.
Meanwhile, IE4 motors are now implemented in the IEC standard IEC 60034-30 Edition 2 draft, in addition to the newly included IE efficiency level classified for variable speed motors.
The S series is part of Bauer's PMSM (permanent magnet synchronous motor) range which has been proven to provide the best possible energy efficiency. The range of motors are available from 0.55kW to 15kW and are classified for Zones 1 and 21.
Not only are they superior at converting electrical energy into mechanical power, but they also offer the added benefit of maintaining constant speed independent of the load. This means that motor speed does not vary, despite overload variations, or cases of voltage drop, as long as the mains frequency is kept constant.
