News
-
Are high-voltage motors more susceptible to vibration issues in comparison with low-voltage motors?
Compared with low-voltage motors, high-voltage motors, especially high-voltage asynchronous motors, are mostly based on cage rotor structure. During motor manufacturing and operation, due to inappropriate coordination of mechanical structural parts, it may lead to serious vibration of the motor, ...Read more -
Technical essentials of eVTOL motor
1. Technical characteristics of eVTOL motor In distributed electric propulsion, motors drive multiple propellers or fans on the wings or fuselage to form a propulsion system that provides thrust to the aircraft. The power density of the motor directly affects the payload capacity of the aircraft....Read more -
Technical problems of motor powered by variable frequency power supply
The main difference between the motor powered by frequency conversion power supply and the motor powered by power frequency sine wave is that on the one hand, it operates in a wide frequency range from low frequency to high frequency, and on the other hand, the power waveform is non-sinusoidal. T...Read more -
HANNOVER MESSE 2025
e will take part in 2025 HANNOVER MESSE Booth Hall7 A11-1！ Looking forward to seeing you!Read more -
Will the current increase if the motor shaft is replaced by stainless steel?
From the analysis of the basic structure and performance characteristics of the motor, the shaft of the motor plays a supporting role on the one hand to the rotor core, and carries the mechanical properties of the motor through the bearing system with the stator part; the shape and material of th...Read more -
Why can another soaking and drying improve the performance of the motor?
Temperature rise is a very critical performance indicator for the motor. If the temperature rise performance is poor, the service life and operating reliability of the motor will inevitably be greatly reduced. Influencing the motor temperature rise, in addition to the selection of the motor’...Read more -
The impact of production and processing links on motor vibration performance
Vibration is one of the relatively strictly controlled performance parameters during motor operation. Especially for some precision equipment, the requirements for motor vibration performance are even stricter. In order to ensure that the motor performance meets the requirements, necessary measur...Read more -
Characteristics and causes analysis of motor overload faults
Motor overload refers to the state in which the actual operating power of the motor exceeds the rated power. When the motor is overloaded, the symptoms are as follows: the motor heats up severely, the speed drops, and may even stop; the motor makes a muffled sound accompanied by a certain vibrati...Read more -
High-voltage motors will produce corona, why do variable frequency motors also produce corona?
Corona is caused by the uneven electric field generated by uneven conductors. Around the uneven electric field and near the electrode with a small radius of curvature, when the voltage rises to a certain level, a discharge will occur due to free air, forming a corona. From the conditions for coro...Read more -
A practical process for repairing parts – cold welding
During the maintenance and repair process of motors, some key mating surfaces may have dimensional out-of-tolerance problems for some reasons. The most common ones are the negative out-of-tolerance problem in the bearing diameter of the rotating shaft and the positive out-of-tolerance problem in ...Read more -
Can spray painting solve the problem of short circuit between turns of motor windings?
Inter-turn short circuit is an electrical fault that may occur during the production, processing and application of any motor winding. When an inter-turn short circuit fault occurs, can it be repaired and what measures should be taken? The winding and embedding of motor windings may have adverse ...Read more -
The performance of the bearing cage is different depending on the position of the bearing cage.
The cage is an important component of the bearing. Its function is to guide and separate the rolling elements, reduce bearing friction, optimize and balance the rolling element load, and improve the lubrication effect of the bearing. Observing from the appearance of the bearing, it is not necessa...Read more