What are the application areas of asynchronous motors?

Asynchronous motor is the most commonly used type of motor in industry and agriculture, with a capacity ranging from tens of watts to thousands of kilowatts. It is widely used in various industries of the national economy.

For example, in the industrial sector, small and medium-sized steel rolling equipment, various metal cutting machines, light industry machinery, mining winches and ventilation fans are all driven by asynchronous motors.

In agriculture, water pumps, threshers, crushers, and other agricultural and sideline product processing machinery are also driven by asynchronous motors.
In addition, asynchronous motors are also widely used in daily life, such as fans, refrigerators, various medical machinery, and so on. In short, asynchronous motors have a wide range of applications and high demand. With the development of electrification and automation, they play a very important role in industrial and agricultural production and people's lives.

Asynchronous motors can also be used as generators, but they are generally only applied in special circumstances.
The reason why asynchronous motors are so commonly used is mainly due to their simple structure, easy manufacturing, low price, durability, as well as high efficiency and applicable working characteristics.

However, asynchronous motors also have their drawbacks. Asynchronous motors must absorb lagging reactive power from the grid, so their power factor is always less than 1. Due to the fact that asynchronous motors are the most common load in the power grid, the lagging reactive power they require is a heavy burden on the grid, which not only increases transmission losses but also hinders the output of active power. When the load requires a large single motor capacity and the power factor of the grid is relatively low. It is best to use a synchronous motor for driving.

Asynchronous motors are divided into single-phase asynchronous motors and three-phase asynchronous motors based on the number of phases in the stator winding. When there is no three-phase power supply or the required power is very small, a single-phase motor should be used. The power of a single-phase motor generally does not exceed 3-4 kilowatts, which is commonly used in daily life. In industrial and agricultural production, the vast majority of three-phase asynchronous motors are used.