Development of Three-phase Asynchronous Motor in Accordance with New Grade 2 Efficiency Rating

The national standard GB 18613-2012 "Minimum allowable values of energy efficiency and energy efficiency grades for small and medium three-phase asynchronous motors" has been officially put into effect since September 1, 2012. The research and manufacture of this type of three-phase asynchronous motor in accordance with new grade 2 efficiency rating ( i.e. IE3 premium efficiency rating)were introduced.