Autotransformer step-down starting is to reduce the starting voltage on the stator winding of the motor through the autotransformer, also known as autotransformer step-down starting. After the three-phase asynchronous motor is started, the motor is separated from the autotransformer, so as to move normally under full pressure.

       This kind of buck starting can be divided into manual control and automatic control. The high voltage side of the autotransformer is put into the grid, and the low voltage side is connected to the motor, and there are several taps with different voltage ratios to choose from. Its best  The point is that the different taps of the autotransformer can be selected according to the starting current and the required starting torque to achieve step-down starting, and regardlessThree-phase asynchronous motorThe stator winding is adoptedY orΔAll connections can be used.

       ①The use of autotransformer multi-tap decompression, not only to meet the needs of different load starting, but also to get a larger starting torque, is often used to start large capacity motor decompression starting mode.

       ②Its advantage is that the starting torque is larger when its winding tap is in80%When the starting torque can reach the direct starting64%. And the starting torque can be adjusted by tapping.

       The above content is composed ofThree-phase asynchronous motor manufacturers, provided by Senli Motor. Available if needed1688Search "Shengzhou Chaoli Electric Appliance Factory", or contact us directly0575-8378-1127.