Variable speed motor is abbreviated as variable frequency motor, which is a general term for motors driven by frequency converters. ATO.com online store offers optional rated power 1hp/ 2hp/ 3hp/ 5.5hp/ 7.5hp/ 10hp/ 15hp. Variable speed electric motor with a fan which voltage is 380V, 2P/ 4P/ 6P for selection. 3 phase variavble speed motor has the advantages of beautiful appearance, high efficiency and energy saving, F grade insulation, IP55 protection grade, low noise, low vibration and reliable operation. Variable frequency motor is widely used in places that require energy-saving continuous operation and frequent work, such as fans, air compressors, injection molding machines, reducers, water pumps, vacuum pumps, etc.
In short, a variable speed motor is a motor with a variable frequency drive or similar technology installed to control the speed and torque of the motor. By bringing these key elements of motor performance under operator control, variable speed motors provide a means for products and production facilities to significantly reduce the amount of energy consumed by the motor in their equipment.
The three-phase symmetrical winding is connected to the three-phase symmetrical alternating current, which will generate a rotating magnetic field in the space. This magnetic field cuts the rotor conductor, which will generate induced electromotive force and induced current in the rotor, and the rotation speed is lower than the synchronous speed and rotates in the same direction as the synchronous speed. The frequency conversion motor changes the speed of the motor by changing the frequency of the input three-phase alternating current, and the frequency conversion is used for speed regulation.
The variable speed electric motor adopts the AC speed regulation method of "special variable frequency induction motor + frequency converter", which greatly improves the degree of mechanical automation and production efficiency, and greatly improves the miniaturization of the equipment and the comfort. It is currently replacing the traditional mechanical speed regulation and DC speed regulation.
A variable speed motor is a synchronous motor, and the speed is related to the frequency of the power supply. In addition, a frequency converter is used to convert the 50Hz power frequency alternating current into alternating current with variable output frequency.