Knowledge
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The development of permanent magnet motor and its application in various fields!
The permanent magnet motor uses permanent magnets to generate the magnetic field of the motor, does not require excitation coils or excitation current, has high efficiency and simple structure, and is a good energy-saving motor. With the advent of high-performance permanent magnet materials and t...Read more -
There are many and complex reasons for motor vibration, from maintenance methods to solutions
The vibration of the motor will shorten the life of the winding insulation and the bearing, and affect the normal lubrication of the sliding bearing. The vibration force promotes the expansion of the insulation gap, allowing external dust and moisture to intrude into it, resulting in a decrease i...Read more -
The Proportional Change Law of Motor Loss and Its Countermeasures
The losses of three-phase AC motors can be divided into copper losses, aluminum losses, iron losses, stray losses, and wind losses. The first four are heating losses, and the sum of them is called total heating losses. The proportion of copper loss, aluminum loss, iron loss and stray loss to the ...Read more -
The reason why the permanent magnet motor can save power is this reason!
When the three-phase stator windings of the permanent magnet motor (each with a difference of 120° in electrical angle) are fed with a three-phase alternating current with a frequency of f, a rotating magnetic field that moves at a synchronous speed will be generated. In the steady state, ...Read more -
Five “culprits” of motor failure and how to deal with it
In the actual application process of the motor, many factors can lead to the failure of the motor. This article lists the five most common reasons. Let’s take a look at which five? The following is a list of common motor faults and their solutions. 1. Overheating Overheating is the bigge...Read more -
Vibration and noise of permanent magnet motor
Study on Influence of Stator Electromagnetic Force The electromagnetic noise of the stator in the motor is mainly affected by two factors, the electromagnetic excitation force and the structural response and acoustic radiation caused by the corresponding excitation force. A review of the ...Read more -
Remember the motor principle and several important formulas, and figure out the motor so easy!
Motors, generally referred to as electric motors, also known as motors, are extremely common in modern industry and life, and are also the most important equipment for converting electrical energy into mechanical energy. Motors are installed in cars, high-speed trains, airplanes, wind turbines, r...Read more -
Four core principles of motor selection
Introduction: The reference standards for motor selection mainly include: motor type, voltage and speed; motor type and type; motor protection type selection; motor voltage and speed, etc. The reference standards for motor selection mainly include: motor type, voltage and speed; motor type an...Read more -
How is the protection level of the motor divided?
How is the protection level of the motor divided? What is the meaning of rank? How to choose a model? Everyone must know a little bit, but they are not systematic enough. Today, I will sort out this knowledge for you for reference only. IP protection class IP (INTERNA...Read more -
Why are the fan blades of the cooling fan in odd number?
Cooling fans are generally not used alone, but are used together with heat sinks. It is composed of motor, bearing, blade, shell (including fixing hole), power plug and wire. This is mainly because to maintain the balance of the cooling fan operation and reduce the impact of resonance as...Read more -
Compared with ordinary motors, what are the characteristics of electric vehicle motors?
Introduction: Electric vehicles are the development trend of the automotive industry. We all know that the core of its principle is to replace the engine with an electric motor to achieve electric drive. But have you ever thought about whether the motor on an electric car is the same as a norma...Read more -
Do bearings have an effect on motor efficiency? The data tells you, yes!
Introduction: In the actual production and processing process, in addition to the structure and quality of the bearing itself, it is related to the cooperation of grease and bearing. After some motors are started, they will be very flexible after rotating for a period of time; Manufacturers, th...Read more