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What are the types of motor protection and what are the functions
24-08-2019
Motor protection types include motor protection, differential protection and overload protection. Motor protection is to provide comprehensive protection for the motor, that is, overload, phase loss, stall, short circuit...
What is the relationship between the number of poles in Xinyi and the speed
16-08-2019
The pole number refers to the magnetic pole formed by the rotor after the rotor coil has passed the excitation current. Briefly speaking, each revolution of the rotor can induce several cycles of current divergence in on...
How to choose negative pressure fan and its accessories
14-08-2019
Many people choose negative pressure fans according to the situation, but how to choose negative pressure fans and accessories? What are the installation precautions? Let's take a look at it today, so that you no longer ...
Fan noise awareness and some solutions
13-08-2019
We all know that there are many reasons for the noise generated by the fan. Only when we find the cause of the noise can we solve the problem. The problem is that the fan is actually a volumetric compressor. It is rotate...
What is the motor bearing? What does it do?
10-08-2019
1. Motor bearing is a special type of bearing specially used on electric motor or motor. The bearing used in the motor is a part that supports the shaft, which can guide the rotation of the shaft or the parts that...
Why does the negative pressure fan make noise? How to deal with it?
09-08-2019
The noise of the negative pressure fan is really annoying, but why does the negative pressure fan make noise? How to solve it? Have you considered this? Let us look at it together. Reason 1: When the negative pres...