If the stator voltage of the asynchronous motor is changed, a different set of mechanical characteristics curves can be obtained, and the speed obtained will be different.Three-phase asynchronous motorSpeed regulation can be carried out by the method of stator pressure regulation, and the following is a simple understanding of the Senli motor Xiaobian.

       First of all we knowThree-phase asynchronous motorThe torque is proportional to the square of the voltage, if the maximum torque decreases, then the speed regulation range will be reduced, and in order to expand the speed regulation range, voltage regulation is generally used in the rotor resistance value of the largest asynchronous motor, now on the market also have dedicated for voltage regulation of the use of torque motor, or winding motor, such as three-phase asynchronous motor series resistor, And in order to expand the range of stable operation, when the speed is in2:1The above occasions should use feedback control to achieve the purpose of automatic adjustment of speed.

       Voltage regulation and speed regulation are mainly through a power supply device that can provide voltage changes, which are commonly used at present, such as series saturation reactor, autotransformer and thyristor voltage regulation. The characteristics of voltage regulation speed regulation: voltage regulation speed regulation line is simple, easy to realize automatic control; During the voltage regulation process, the transfer differential power is consumed in the rotor resistance in the form of heat, and the efficiency is low. Voltage regulation speed regulation is generally applicable100KWThe following production machinery.

       The above content is composed ofThree-phase asynchronous motor manufacturers, provided by Senli Motor; Available if needed1688Search factory name "Shengzhou Chaoli Electric Appliance Factory" , Or online consultation message, we will have business personnel to get in touch with you, you can also contact us directly0575-8378-1127.