Therefore, it has the advantages of simple structure, convenient manufacture, use and maintenance, reliable operation, low quality and low cost.. The greater the load torque, the lower the speed of the rotor. It also changes with the size of the load. Asynchronous motors include induction motors, doubly-fed asynchronous motors and AC commutator motors.

Therefore, synchronous motors are often used to drive high-power, low-speed mechanical equipment such as ball mills and compressors. They run near constant speed from no-load to full-load, and can meet the transmission requirements of most industrial and agricultural production machinery. Asynchronous motors have higher operating efficiency and better working characteristics.

Asynchronous motor is a kind of AC motor, and the ratio of its speed at load to the frequency of the connected power grid is not constant. Generally speaking, induction motors can be called asynchronous motors without causing misunderstanding or confusion. When an asynchronous motor is running, it must draw reactive excitation power from the grid to make the power factor of the grid worse. Induction motors are very widely used. The stator winding of the ordinary asynchronous motor is connected to the AC power grid, and the rotor winding does not need to be connected to other power sources.

Because the speed of the asynchronous motor has a certain slip relationship with the speed of its rotating magnetic field, its speed regulation performance is poor (except for AC commutator motors). For transportation machinery, rolling mills, large-scale machine tools, printing and dyeing and papermaking machinery that require a wide and smooth speed range, Belt Conveyor Pulley Manufacturers it is more economical and convenient to use

DC motors. However, with the development of high-power electronic devices and AC speed control systems, the speed control performance and economy of asynchronous motors suitable for wide speed control are comparable to those of DC motors. Asynchronous motors are also easy to generate various protection types to meet the needs of different environmental conditions

Megosztás a facebookon