The series motors are designed and manufactured under incorporating the advantages of the counterparts in the world.and are in full conformity with international standard of IEC. This motor employs method of changing the pole numbers so as to carry out speed adjustment.Theseries motors have features of small volume,light weight,low noise.well starting performance.reliable operation,convenient maintenance,etc.The main technical indexes have reached the international standard.

   The series motors are widely used in various mechanical equipment which needs stepped speed adjustment,so that they enable the equipment to have compact structure,lower noise and adlility to save energy.

   Simultaneously,multi-speed motor with special specification can be designed and manufa ctured according to the requirements of customers,such as multi-speed three-phase induction motor for YD fans and pumps.