For YVFE4 series frequency speed control of induction motor, the environmental condition grades of chemical active substances and mechanical active substances are 4C2 and 4s2 for outdoor W, 4C3 and 4S3 for WF1 and 4C4 and 4S4 for WF2. In case of special needs, other environmental conditions specified in JB4375 can be selected through negotiation between the user and the manufacturer.

The motor belongs to the derivative products of Article 2.2 and 2.3, and the structure is the same, and the relevant parts are subject to anti-corrosion treatment.

The motor protection grade is IP55 and the cooling mode is IC411 or IC416, S1 continuous working system. Class F insulation structure is adopted, but the temperature rise of the whole series is assessed according to grade B.

 belongs to the derivative products of Article 2.3 and 2.3. On the basis of it, the DC electromagnetic brake (IP23) is added to the non-driving end, and the brake power supply is provided by the rectifier module installed in the motor outgoing box.

YVFE4 series frequency control low-voltage three-phase asynchronous motor is a kind of motor commonly used in power plants, mainly because it has the following advantages:

Low-voltage three-phase asynchronous motor has the advantages of simple structure, easy to use and low maintenance cost. This is because the structure of the motor is relatively simple, composed of fewer structural components, and it does not need to be regularly lubricated or replaced with wearing parts, so it is very convenient to use, and the maintenance cost is also low.

Low-voltage three-phase asynchronous

In addition, this kind of motor has the advantages of strong load adaptability. Because it can operate under different loads, it can adapt to different working needs in the power plant, which makes the motor more multi-functional.

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