Y series three phase asynchronous motor

Structure design,main is also considering the non-sinusoidal power characteristics of variable

frequency motor insulation structure,the industrial fan motors electric influence of vibration and noise

cooling mode,generally pay attention to the following questions:1) the insulation class,generally for F or higher,strengthen the insulation and line turn insulation strength,especially want to consider

the ability of impact resistance voltage insulation.2) to the problem of vibration and noise of the motor,the motor should be fully considered component and overall rigidity,trying to improve its natural frequency,in order to avoid and every force wave resonance phenomenon.3) cooling way:general

using forced air cooling,or main Y series three-phase asynchronous motor cooling fan wholesalemotor.blogspot.com with independent

motor drive.4) measures to prevent shaft current,the capacity of more than 160 kw motor bearing

insulation measures should be adopted. Mainly produces magnetic circuit asymmetry,also can produce shaft current,while the rest of the high frequency component generated by the current role in combination,shaft current will increase greatly,which can lead to bearing damage,so often insulation measures.5) to motor fan the constant power variable frequency motor,when the rotation speed of more than 3000 / min,high temperature resistant special grease should be adopted,to compensate for the temperature of the bearing.