Knowledge
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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 -
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