News
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Study on core loss of high silicon steel motor stator considering temperature and compressive stress
Since the motor core is often affected by various physical factors such as magnetic field, temperature field, stress field, and frequency during the working process; at the same time, different processing factors such as residual stress generated by stamping and shearing of silicon steel sheets, ...Read more -
The wishful thinking behind Tesla’s “removal of rare earths”
Tesla is now not only planning to subvert the electric vehicle market, but also preparing to point the way to the electrical industry and even the technology industry behind it. At Tesla’s global investor conference “Grand Plan 3” on March 2, Colin Campbell, Tesla’s vice president of powertrain ...Read more -
How to choose a “real material” motor?
How can we buy genuine motors at a fair price, and how to distinguish the quality of the motor? There are many motor manufacturers, and the quality and price are also different. Although my country has already formulated technical standards for motor production and design, many companies have a...Read more -
Detailed questions and answers about motor technology, decisive collection!
The safe operation of the generator plays a decisive role in ensuring the normal operation and power quality of the power system, and the generator itself is also a very valuable electrical component. Therefore, a relay protection device with perfect performance should be install...Read more -
Wheel hub motor mass production! Schaeffler will deliver to the first batch of customers in the world!
PR Newswire: With the accelerated development of the electrification process, Schaeffler is rapidly advancing the mass production process of the wheel hub drive system. This year, at least three municipal vehicle manufacturers will use Schaeffler in-wheel motor products in their series-produced m...Read more -
Why do low-pole motors have more phase-to-phase faults?
Phase-to-phase fault is an electrical fault unique to three-phase motor windings . From the statistics of faulty motors, it can be found that in terms of phase-to-phase faults, the problems of two-pole motors are relatively concentrated, and most of them occur at the ends of the windings. From th...Read more -
Is the center hole of the motor shaft a mandatory standard?
The center hole of the motor shaft is the benchmark of the shaft and rotor machining process. The center hole on the shaft is the positioning reference for the motor shaft and rotor turning, grinding and other processing procedures. The quality of the center hole has a great influence on the prec...Read more -
The no-load current of the motor must be less than the load current?
From the analysis of the two intuitive states of no-load and load, it can basically be considered that under the load state of the motor, due to the fact that it drags the load, it will correspond to a larger current, that is, the load current of the motor will be greater than the no-load current...Read more -
What is the reason for the running circle of the motor bearing?
certain company said that a batch of motors had bearing system failures. The bearing chamber of the end cover had obvious scratches, and the wave springs in the bearing chamber also had obvious scratches. Judging from the appearance of the fault, it is a typical problem of the outer ring of the b...Read more -
How to find the quality problems of motor windings as early as possible
Winding is a very critical element in the process of motor production and processing. Whether it is the correctness of the motor winding data or the compliance of the insulation performance of the motor winding, it is a key indicator that must be highly valued in the manufacturing process. Under ...Read more -
Why are permanent magnet motors more efficient?
Permanent magnet synchronous motor is mainly composed of stator, rotor and housing components. Like ordinary AC motors, the stator core is a laminated structure to reduce iron loss due to eddy current and hysteresis effects during motor operation; the windings are also usually three-phase symmetr...Read more -
Why do squirrel-cage asynchronous motors choose deep-slot rotors?
With the popularization of variable frequency power supply, the problem of motor starting has been easily solved, but for ordinary power supply, the starting of squirrel-cage rotor asynchronous motor is always a problem. From the analysis of the starting and running performance of the asynchronou...Read more