How to ensure the permanent magnetic variable frequency air pressure machine does not demagnetize?
1.Correct selection of permanent motor power :Demagnetization is related to the power selection of permanent magnet motor .Generally about 20% is more appropriate
2.Avoid heavy-duty starting and frequency starting
3.To improve the design : a) Increase the thickness of permanent magnet appropriately
b)The rotor is provided with a ventilation groove loop to reduce the temperature rise of the rotor
