Knowledge
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The role of frequency converter in motor control
For motor products, when they are produced in strict accordance with design parameters and process parameters, the speed difference of motors of the same specification is very small, generally not exceeding two revolutions. For a motor driven by a single machine, the speed of the motor is not too...Read more -
Why should the motor choose 50HZ AC?
Motor vibration is one of the current operating conditions of motors. So, do you know why electrical equipment such as motors uses 50Hz alternating current instead of 60Hz? Some countries in the world, such as the United Kingdom and the United States, use 60Hz alternating current, because ...Read more -
Classification of motor types
1. According to the type of working power supply: Can be divided into DC motors and AC motors. 1.1 DC motors can be divided into brushless DC motors and brushed DC motors according to their structure and working principle. 1.1.1 Brushed DC motors can be divided into: permanent magnet...Read more -
What are the special requirements for the bearing system of a motor that starts and stops frequently, and rotates forward and reverse?
The main function of the bearing is to support the mechanical rotating body, reduce the friction coefficient during , and ensure its rotation accuracy. The motor bearing can be understood as being used to fix the motor shaft, so that its rotor can rotate in the circumferential direction, and at t...Read more -
The Proportional Change Law of Motor Loss and Its Countermeasures
The loss of three-phase AC motor can be divided into copper loss, aluminum loss, iron loss, stray loss, and wind loss. The first four are heating loss, and the sum is called total heating loss. The proportion of copper loss, aluminum loss, iron loss and stray loss to the total heat loss is expoun...Read more -
Analysis and preventive measures of common faults of high-voltage motors!
The high-voltage motor refers to the motor that operates under the power frequency of 50Hz and the rated voltage of 3kV, 6kV and 10kV AC three-phase voltage. There are many classification methods for high-voltage motors, which are divided into four types: small, medium, large and extra large acco...Read more -
The difference between brushed/brushless/stepper small motors? Remember this table
When designing equipment that uses motors, it is of course necessary to choose the motor that is best suited for the job required. This article will compare the characteristics, performance and characteristics of brushed motors, stepper motors and brushless motors, hoping to be a reference...Read more -
What exactly did the motor “experience” before leaving the factory? The key 6 points teach you to choose a high-quality motor!
01 Motor process characteristics Compared with general machine products, motors have a similar mechanical structure, and the same casting, forging, machining, stamping and assembly processes; But the difference is more obvious. The motor has a special conductive, magnetic a...Read more -
The growing demand for high-efficiency motors has created a huge demand for new motor laminate materials
In the commercial market, motor laminations are usually divided into stator laminations and rotor laminations. Motor lamination materials are the metal parts of the motor stator and rotor that are stacked, welded and bonded together, depending on the needs of the application. . Motor lamination m...Read more -
Motor loss is high, how to deal with it?
When the motor converts electrical energy into mechanical energy, it also loses a part of the energy itself. Generally, the motor loss can be divided into three parts: variable loss, fixed loss and stray loss. 1. Variable losses vary with load, including stator resistance loss (copper loss), ...Read more -
The relationship between motor power, speed and torque
The concept of power is the work done per unit time. Under the condition of a certain power, the higher the speed, the lower the torque, and vice versa. For example, the same 1.5kw motor, the output torque of the 6th stage is higher than that of the 4th stage. The formula M=9550P/n can also be us...Read more -
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