Direct Drive Motor Frequency Conversion Control Cabinet

① Advanced sensorless vector control technology is used to control the magnetic field orientation of the permanent magnet variable frequency motor, which always ensures the high efficiency, energy saving and high precision control of the entire system. 

② Flexible anti-reverse device: According to the characteristics of the oilfield screw pump, the flexible braking of the screw pump is designed in the case of power failure and shutdown, so that the elastic of the screw is slowly released, so as to ensure the safety of the equipment and the person.