The Important Role of Permanent Magnet Motors in Various Application Fields

1. Energy saving rare earth permanent magnet motors are mainly aimed at consumption, such as rare earth permanent magnet synchronous motors for textile and chemical fiber industries, petroleum, mining, and transportation machinery in coal mines. Rare earth permanent magnet synchronous motors drive various pumps and fans.

How to maintain a permanent magnet motor?

Permanent magnet motor is a new type of energy-saving and explosion-proof motor. Any machine needs protection after a period of time, and so does permanent magnet motors. The protection requirements for permanent magnet motors are as follows.

Inspection items before motor installation

1. Check in detail the model and various data marked on the motor nameplate, such as rated capacity, rated voltage, protection level, etc., to see if they comply with the drawings or actual on-site requirements.

Analysis of the Causes of Cooling Tower Fan Vibration

Based on the operation status and process of the fan, a preliminary analysis of the reasons for the vibration of the cooling tower shows that there are mainly the following possibilities: 1. Fan blade angle error. Excessive angle error during installation of each blade can cause differences in the windward surface of each blade, resulting in different loads on the blades and causing vibration of the cooling tower fan.

What are the reasons and solutions for the gearbox oil leakage?

As an important component in mechanical transmission, the service life and stability of the reducer have a crucial impact on the efficiency and economic benefits of industry production. During long-term use, the problem of oil leakage in the gearbox is a common phenomenon, which affects the normal production of the gearbox. Next, we will conduct a detailed analysis from two aspects: the causes and solutions of the gearbox oil leakage.

Operating methods and precautions for gear reducers

A gear reducer is a mechanical transmission device that reduces the speed through a reduction mechanism, changing the torque and power of the transmitted power, and is widely used in various industrial machinery and production lines.

How to troubleshoot three-phase asynchronous motors

1. Check if the power supply voltage meets the requirements. The operation of three-phase asynchronous motors must be carried out within a certain range of power supply voltage. If the power supply voltage exceeds the rated voltage range of the motor, it may cause cracking. Therefore, when troubleshooting motor cracking faults, we need to first check whether the power supply voltage meets the requirements. If the power supply voltage is insufficient or too high, corresponding measures should be taken to ensure that the power supply voltage is stable within the normal range.

Fault detection method for permanent magnet motors

1. Listen to the sound first, then carefully locate the fault point During the operation of a permanent magnet motor, if there is a fine "buzzing" sound without any fluctuations in height, it indicates that it is a normal sound. If the sound sounds thick and sharp "buzzing" or "hissing", it indicates that it is a precursor to a malfunction. At this time, you should consider the following reasons:

What is the difference between a squirrel cage rotor and a wound rotor in a three-phase asynchronous motor?

What is the difference between a squirrel-cage rotor and a wound rotor motor? Three phase asynchronous motor consists of stator and rotor. The stator is a fixed part of the motor, which is used to generate rotating magnetic field. It is mainly composed of stator core, stator winding, base and other components. The rotor is the rotating part of the motor, which is composed of rotor core, rotor winding, shaft and other parts. Its main function is to obtain the rotating torque under the action of rotating magnetic field. Rotors are divided into two types according to their structure: squirrel cage rotors and wound rotors: