In 1950s, Shanghai Electric Machinery Factory Co., Ltd. successively manufactured the first turbo-generator in China and the first dual-water internally cooled turbo-generator in the world. Shangdian company has provided tens of thousands of asynchronous motors for various turbogenerators, which are well received by users at home and abroad. In the field of nuclear power, SGCC's self-developed 1E class motors and emergency diesel generators, rod-powered M.G generators, nuclear main pumps, conventional island circulating pumps, main feed pumps, condensate pumps and supporting motors have made important contributions to the development of national nuclear power. Various types of motors for nuclear power plants have been used in Qinshan, Pakistan Chashma and other nuclear power plants, providing motor products for nuclear power projects such as Hongyanhe, Ningde, Yangjiang, Taishan, Fangjiashan, Fuqing and Haiyang. Starting from 1998, Shangdian Company independently developed 250 kW wind turbines. Through product upgrading, the air-cooled structure, water jacket cooling structure and air-cooled structure are designed according to the standards of normal temperature, low temperature, salt fog prevention and dust prevention, and the fan with water jacket cooling structure is recommended first. 1.25 MW, 1.5 MW, 2 MW and 3.6 MW wind turbines have been manufactured, forming a basic series.