When using permanent magnet variable frequency air compressors in daily life, many customers will ask what they need to pay attention to when maintaining the machine? As the main compressed air equipment now, screw air compressors have a much higher damage rate than other equipment. To reduce the damage rate, users are required to do a good job of maintenance during use. Let's take a look at it together. What should be paid attention to in the maintenance of permanent magnet variable frequency air compressors? The editor will talk to you about the issues that need to be paid attention to in the maintenance of air compressors:
1. Check whether the equipment wiring is loose or aging regularly, and test it. Record the conditions in detail, which is conducive to the convenient inspection of the motor if there is a fault. The execution strength of the motor maintenance method is very critical, which determines the later operating efficiency and adjustment status.
2. Demagnetization is related to the power selection of permanent magnet motors. Correctly selecting the power of permanent magnet motors can prevent or delay demagnetization. The main reason for the demagnetization of permanent magnet synchronous motors is excessive temperature, and overload is the main reason for excessive temperature. Therefore, when selecting the power of the permanent magnet motor, a margin should be left. According to the actual load situation, about 20% is generally appropriate.
3. Avoid heavy-load direct starting or frequent starting of cage-type asynchronous starting synchronous permanent magnet motors. During the asynchronous starting process, the starting torque is oscillating. In the trough section of the starting torque, the stator magnetic field has a demagnetizing effect on the rotor poles. Therefore, try to avoid heavy load and frequent starting of asynchronous permanent magnet synchronous motors.