关键词: 高、超高转差率, 电动机, 结构, 技术参数, 性能用途

Abstract: Oil- dedicated high/ ultra high slip motors were developed based on a variety of innovative technologies, including motor electromagnetic design and structure design, motor rotor slot and structure design, special high pressure casting technology of slot type rotor, low pressure casting technology of thin wall aluminum alloy base, etc. With a special ventilation cooling structure, the motors have such characteristics as good energy-saving performance, high mechanical earnings and superior starting performance. The performance has reached the international advanced level, and good results have been obtained in field tests and applications in some big oilfields at home and abroad. The article introduced the structure characteristics, performance characteristics, technical parameters, technical characteristics of the products, and the development of technology in recent years and further research direction.