石油工业的发展往往与石油动力工业的发展密切相关。由于采用了旋转钻井,深井泵采油,保持地层压力的注水,矿内管线和大型管线的输油等项石油工业方面的重大技术改造,必然要求提供高效的电力驱动设备。而钻井深度和钻井速度的提高,采油量的增加,也一定要促使电动机功率的加大,因而电能的需要量也随之增加。当然,动力工业和电气工业的发展, The development of petroleum industry is often closely related to the development of petroleum power industry. As a result of major technological innovations in the oil industry such as rotary drilling, deep well pumping, water injection to maintain formation pressure, oil in in-mine pipelines and large pipelines, it is inevitable to provide efficient electric drive equipment. The drilling depth and drilling speed increase, oil production increase, but also must promote the motor power increases, so the demand for electricity also increases. Of course, the development of the power industry and the electrical industry,