News
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Huali Motor: “Made in Weihai” motor with “Chinese heart” for EMU assembly!
On June 1, at the factory of Shandong Huali Motor Group Co., Ltd. in Rongcheng , workers were assembling electric motors for rail transit. In the quality inspection process, the quality inspectors are concentrating on torque calibration of the fasteners… The batch of motors in front of us w...Read more -
Compared with ordinary motors, the characteristics of explosion-proof motors
Due to the application occasion and particularity, the production management and product requirements of explosion-proof motors are higher than those of ordinary motors, such as motor tests, parts materials, size requirements and process inspection tests. First of all, explosion-proof motors are ...Read more -
Why is the shaft diameter of the multi-pole low-speed motor larger?
When a group of students visited the factory, they asked a question: Why are the diameters of the shaft extensions of two motors with basically the same shape obviously inconsistent? Regarding this aspect, some fans have also raised similar questions. Combined with the questions raised by fans, w...Read more -
The promotion and application prospects of high-efficiency motors under the new energy situation
What is a high-efficiency motor? Ordinary motor: 70%~95% of the electric energy absorbed by the motor is converted into mechanical energy (the efficiency value is an important indicator of the motor), and the remaining 30%~5% of the electric energy is consumed by the motor itself due to heat...Read more -
Steering control is a key to motor manufacturing
For most motors, in the absence of special regulations, rotate in a clockwise direction, that is, after wiring according to the terminal mark of the motor, it should rotate in a clockwise direction when viewed from the motor shaft extension end; motors that are different from this requirement , s...Read more -
What performance does the dust shield affect the motor?
The dust shield is a standard configuration of some wound motors and motors with relatively low protection levels. Its main purpose is to prevent dust, especially conductive objects, from entering the inner cavity of the motor, resulting in unsafe electrical performance of the motor. In the namin...Read more -
Why can’t general motors be used in plateau areas?
The main features of the plateau area are: 1. Low air pressure or air density. 2. The air temperature is low and the temperature changes greatly. 3. The absolute humidity of the air is small. 4. The solar irradiance is high. The oxygen content of the air at 5000m is only 53% of that at sea leve...Read more -
Can the level 1 energy efficiency stipulated in the new version of GB18613 allow China’s motors to stand at the highest level of international motor energy efficiency?
It is learned from the national professional authority that the GB18613-2020 standard will soon meet with motor manufacturers and will be officially implemented in June 2021. The new requirements of the new standard once again reflect the national control requirements for motor efficiency indicat...Read more -
What are the mandatory standards for motor products?
0 1 The current mandatory national standard (1) GB 18613-2020 Allowable Values of Energy Efficiency and Energy Efficiency Grades of Electric Motors (2) GB 30253-2013 Permanent Magnet Synchronous Motor Energy Efficiency Allowable Values and Energy Efficiency Grade Standards (3) GB 3025...Read more -
The specific performance of the frequency conversion motor is different from that of the ordinary motor
Ms. Shen’s best friend HH doesn’t like summer very much. The first reason is that HH ’s sweat glands are special, and basically does not sweat on hot days, so it feels particularly uncomfortable; the second reason is that HH ’s mosquito relationship is particularly good, and sometimes...Read more -
Knowledge in motor manufacturing: How much bearing clearance is more reasonable? Why should the bearing be preloaded?
Bearing system reliability is always a hot topic in electric motor products. We have talked a lot in previous articles, such as bearing sound problems, shaft current problems, bearing heating problems and so on. The focus of this article is the clearance of the motor bearing, that is to say, unde...Read more -
High-efficiency, energy-saving and consumption-reducing control of motor frequency conversion and speed regulation
The frequency conversion and speed regulation operation of the motor has gradually become a symbol of the times. The speed regulation of the synchronous motor is the frequency conversion and speed regulation control of the square torque load machinery such as the fan and the pump driven by the fr...Read more
