1The heat dissipation system of variable frequency motor is different from that of ordinary motor; 

       2The frequency conversion motor strengthens the groove insulation, one is to strengthen the insulation material, and the other is to increase the thickness of the groove insulation to improve the level of withstand high frequency voltage. 

       3Increased electromagnetic load. The general motor operating point is basically at the magnetic saturation inflection point, if used as frequency conversion, easy saturation, resulting in higher excitation currentVariable frequency motorThe electromagnetic load is increased in the design, so that the magnetic circuit is not easy to saturate.

       4, insulation level, generallyFGrade or higher, strengthen the insulation to the ground and turn insulation strength, especially considering the ability of insulation to withstand impulse voltage. 

       5For the vibration and noise problems of the motor, the rigidity of the motor components and the whole should be fully considered, and the natural frequency should be increased as much as possible to avoid resonance with each force wave. 

       6Cooling method: forced ventilation cooling is generally used, that is, the main motor cooling fan is driven by an independent motor. 

       7Prevent shaft current measures against capacity exceeding160KWBearing insulation measures are adopted for motor motors. It is mainly easy to produce magnetic circuit asymmetry, but also produce shaft current, when the current generated by other high-frequency components together, the shaft current will be greatly increased, resulting in bearing damage, so generally to take insulation measures. 

       8, to constant powerVariable frequency motorWhen the rotational speed exceeds3000/minWhen, a special grease resistant to high temperature will be used to compensate for the temperature rise of the bearing. 

       Senli Motor,19Focus on the development and production of electric motors. 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.