This series of motors is a special three-phase asynchronous motor for frequency conversion and speed regulation combined with electronic frequency converter. It can achieve speed regulation in the range of 150-2750 rpm. It is an ideal power for those mechanical equipments with a wide range of speed regulation requirements. Its electrical properties and installation dimensions are manufactured according to the requirements of national standard JB/T7118-2004, and are in line with international IEC standards. It is widely used in transportation, metallurgy, textile, printing and dyeing, chemical industry, mining, fan, water pump and other industries.