Knowledge
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Motor inspection tips
We all know that motors are electromagnetic devices that realize the conversion or transmission of electric energy according to the law of electromagnetic induction. Motors are used in many fields. Its main function is to convert mechanical energy into electrical energy. At present, the most com...Read more -
The motors of various car manufacturers are different. What are the differences between permanent magnet synchronous motors and AC asynchronous motors? What are their advantages and disadvantages?
According to the 2021 global new energy brand sales data released by the CleanTechnica website: In 2021, the cumulative sales of new energy vehicles worldwide reached nearly 6.5 million , an increase of 108% over the same period last year . Tesla is far ahead with nearly one million units sol...Read more -
About multifunctional electric forklift
An electric shovel is a kind of earthwork construction machinery widely used in highway, railway, building, hydropower, port, mine and other construction projects. It is mainly used for shoveling bulk materials such as soil, sand, lime, coal, etc., and can also be used for light shoveling and exc...Read more -
Analysis of electric vehicle motor types: AC asynchronous and permanent magnet synchronous
The role of motors in electric vehicles When discussing why electric vehicles choose different motor types, we first need to understand the core position of motors in electric vehicles. As the driving system of electric vehicles, the type and performance of motors directly determine the drivin...Read more -
The benefits of keeping 6 terminals for three-phase motors
During an analysis and discussion on the connection method of three-phase motor windings, a netizen raised a question about the number of winding output terminals. For most three-phase motor windings, we can use different connection methods according to the line voltage, namely delta connection a...Read more -
Air gap size of asynchronous motor stator and rotor
The stator-rotor air gap is a necessary parameter for motor products, and different series of products have different requirements for air gap. The air gap of asynchronous motors is relatively small, and the size of the air gap has a greater impact on the no-load current of the motor. In order to...Read more -
What problems are often encountered when using a frequency converter to power a motor?
A frequency converter is a device that converts industrial frequency power into other frequency power. The power frequency in our country is 50Hz. In the field of motors, in order to change the speed of the motor or other performance changes, many motors are powered by frequency converters. The f...Read more -
Analysis of the advantages and disadvantages of using closed slots in cast aluminum rotors of motors
As people continue to pursue motor efficiency, closed slot rotors are gradually recognized by motor manufacturers. For three-phase asynchronous motors, due to the existence of stator and rotor slots, pulsation loss will occur during rotation. If the rotor uses closed slots, the effective air gap ...Read more -
Fault Cases – Causes and Effects of Motor Noise and Winding Heating
Noise is a very typical failure case of motors. It can be divided into mechanical, electrical and ventilation types based on the mechanism of its generation. In comparison, the sound caused by electricity is easy to identify, that is, it can be judged by cutting off the power supply; and the nois...Read more -
Evaluate the energy-saving effect of YE4 and YE5 motors through power consumption
For any motor consumer, the motor’s power usage is a critical factor while the motor product meets its purpose. For electric motor products, rated voltage, rated power, efficiency, speed and current are all important performance indicators, while for power consumption, power and efficiency ...Read more -
Peanut picking machine structure and working principle
1. The structure of peanut picking machine The peanut picking machine is like a precise mechanical body, consisting of a frame, a transmission system, a picking mechanism, a lifting mechanism and a control system. 1. Frame: As the skeleton of the peanut picker, it supports and fixes other p...Read more -
New energy tractor market has broad development space
With the continuous innovation and development of the new energy technology revolution, the manufacturing and application technology of new energy agricultural machinery has gradually matured. In recent years, many domestic agricultural machinery companies have launched new energy tractors with d...Read more