YJ32 motor is a new asynchronous generator which is developed for the equipment of large wind power generation by our company. It can output 3 phase alternating current of 660Kw or 180Kw to the electric power circuit. This generator has features of originality in structure,lower consumption and higher efficiency. Still it has the feature of security. Its performance reaches the international level. New technology is applied as follows: First, perfect design for the working condition of the asynchronous generator and circulation-free dual-windings. Second, stator coil adopted formed winding. Third-class H insulation structure with highly reliable performance. Fourth, the technology of squirrel-cage rotor and special welding for conductor bar. Fifth, special choice of material and design to guarantee the overall vibration strength. Sixth, twin fans self-cooling inner circulation system. Seventh, sensor used to show timely the temperature of windings and bearings. Specifications: Type: 3 phase squirrel-cage dual-windings and two-speed asynchronous generator. Rated power: 660/180 Kw. Rated voltage: 690 v. Synchronous speed: 1500 r/min. Rated speed:>=1518/1012 r/min. Pole: 4/6. Rated frequency: 50 HZ. Central height: 450 mm. Rated efficiency: >96.4/93%. Rated power factor: >0.92/0.83. Insulation class: H. Protection class: IP55. Structure: B3. Overload: 1.10 Weight: 4370kg.