The working principle of the three-phase asynchronous motor is based on the principle of electromagnetic induction. When the stator winding passes through the three-phase symmetrical alternating current, a rotating magnetic field is generated between the stator and the rotor. The rotating magnetic field cuts the rotor winding and generates induced electromotive force and current, the current of the rotor conductor, under the action of the rotating magnetic field, is subjected to the force to make the rotor rotate.
What is a three-phase asynchronous motor?
Three-phase asynchronous motor is a kind of induction motor. It is a type of motor powered by a 380V three-phase AC power supply at the same time. Since the rotor and stator of the three-phase asynchronous motor rotate in the same direction and at different speeds, there is slip, so it is called a three-phase asynchronous motor.
What are the application ranges of three-phase asynchronous motors?
Three-phase asynchronous motor is the leading producer of small and medium-sized motors. As one of the most important power equipment, it converts electrical energy into mechanical energy and drives various mechanical equipment. It is widely used in the chemical industry, textile, metallurgy, construction, agricultural machinery, mining, and light industry. In industries such as fans, water pumps, compressors, machine tools, printing presses, light rail transportation, electric mining vehicles, etc., they are widely used as power sources for major mechanical drives.
What is the difference between three phases and a single phase?
1. For three-phase, 3 live wires are marked as L1, L2, L3, and the neutral line is marked as N; while single-phase is 1 live wire and 1 neutral wire, marked as L and N;
2. The single-phase power supply voltage is 220VAC, usually used in homes or schools; while the three-phase power supply voltage is 380VAC, generally used in enterprises, factories, and other places.