The two-speed motor is mainly used in coal mining, oil and gas, petrochemical and chemical industries. In addition, it is widely used in textile, metallurgy, city gas, transportation, grain and oil processing, papermaking, and pharmaceuticals. As the main power equipment, two-speed motors are usually used to drive pumps, fans, compressors and other transmission machinery.
With the development of science and technology and production, there are also places where there is danger of explosion. For example, in the past, the production of edible oil was performed using the traditional crushing process. After the 1970s, China began to introduce foreign advanced leaching oil technology. However, in this process, chemical solvents containing ethane are used. Ethane is flammable and explosive. Substance; therefore, the oil leaching workshop becomes an explosion hazardous location, requiring the use of two-speed motors and other explosion-proof electrical products. Another example is the rapid development of highways in China in recent years, and the emergence of a large number of fuel gas stations has also provided a new market for two-speed motors.