Asynchronous motor, also known as induction motor, is an AC motor that converts electromechanical energy into mechanical energy by the interaction of the air gap rotating magnetic field and the rotor winding induced current to generate electromagnetic torque.
The three-phase asynchronous motor is mainly used as an electric motor to drive various production machines, such as fans, pumps, compressors, machine tools, light industry and mining machinery, thrashers, and pulverizers in agricultural production, processing machinery in agricultural and sideline products, etc. Wait. The structure is simple, easy to manufacture, low in price, reliable in operation, robust, high in operating efficiency, and suitable for operating characteristics.
According to the rotor structure, asynchronous motors are divided into two forms: a squirrel-cage type (squirrel-cage asynchronous motor) and a wound-wound asynchronous motor.
Asynchronous motor for motor operation. Because the rotor winding current is induced, it is also called an induction motor. Asynchronous motors are the most widely used and most demanding types of motors. About 90% of the electricity-driven machines in various countries are asynchronous motors, of which small asynchronous motors account for more than 70%. In the total load of the power system, the power consumption of the asynchronous motor accounts for a considerable proportion. For example, in China, asynchronous motors account for more than 60% of the total load.
An asynchronous motor is an AC motor whose ratio of the speed of the load to the frequency of the connected grid is not constant. An induction motor is an asynchronous motor with only one set of windings connected to the power supply. In no misunderstanding and confusion, the induction motor can generally be called an asynchronous motor. The IEC standard states that the term "induction motor" is used synonymously as "asynchronous motor" in many countries. In contrast, other countries use only the term "asynchronous motor" to refer to both concepts.
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