News
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Why Load Confirmation is the Foundation of High-Voltage Motor Selection
In heavy industrial applications, High-Voltage (HV) motors are the primary drivers for critical assets. A common mistake in procurement is treating a motor as a standalone commodity based solely on its nameplate power (kW) and voltage (kV). In reality, the motor and the driven equipment operate...Read More -
Does Heating Motor Bearings Lead to Bearing Magnetization?
For large-sized motor bearings, the “hot fitting” process is a common assembly method. This process involves heating the bearing—leveraging the principle of thermal expansion and contraction in metals—to achieve an interference fit between the bearing and the shaft, thereby preventin...Read More -
How Different Mounting Methods Affect Motor Bearing Temperatures?
B35-Mounted Motors: Thermal Dissipation Control Requirements for Bearing Systems Compared to B3-mounted motors, B35 motors are not only secured via their base feet but must also be fixed to the driven equipment through a flange on the end cover. This arrangement ensures and constrains the...Read More -
Ensure Stable Operation: Voltage Fluctuation Adaptability Test for Three-Phase Asynchronous Motors
Voltage fluctuation is a common power anomaly in industrial production, caused by factors such as lightning strikes, short circuits, startup of high-power equipment, and grid switching. Such fluctuations may lead to abnormal operation, failure shutdown, or even damage of three-phase asynchrono...Read More -
Asynchronous Motors Replace Slip Ring Motors: Driving Efficient Upgrade of Industrial Production
In the context of the global industrial transformation towards high efficiency, energy conservation and cost reduction, asynchronous motors have gradually replaced traditional slip ring motors in various industrial fields, becoming the core power support for enterprise production and up...Read More -
Why High-Power Motors Are Designed for High Voltage？
In heavy industry, high-power motors (typically 200kW and above) are almost exclusively engineered as high-voltage (HV) motors—operating at 3kV, 6kV, or 10kV—rather than low-voltage (LV) 380V/660V systems. This design choice is rooted in fundamental electrical principles and delivers overwhelming...Read More -
When 12 mm/s Vibration Meets High-Voltage Motor Bearings
Why load-side vibration exceeds motor limits — and how we address it transparently In a recent inquiry for a high-voltage motor driving a vacuum pump via a rigid coupling, a professional customer raised a critical concern: Could the pump’s high vibration damage the motor bearings? After reviewi...Read More -
Why “Rated Speed” is the True North of PM Motor Selection
In the world of industrial procurement, the transition from traditional induction motors to Permanent Magnet (PM) Synchronous Motors requires a fundamental shift in technical thinking. While many engineers are accustomed to selecting motors based on grid frequency (50Hz/60Hz), PM motor selectio...Read More -
Strategic Selection Guide: Cooling Methods for High-Voltage Explosion-Proof Motors
In the procurement of High-Voltage (HV) explosion-proof motors, the cooling system is a critical technical specification that dictates motor footprint, reliability, and long-term maintenance costs. Choosing the wrong cooling method in a hazardous environment can lead to insulation degradation o...Read More -
Differences Between Rolling Bearings and Sliding Bearings in Electric Motors
Rolling bearings and sliding bearings are the two primary types of support used in electric motors; each has distinct advantages in terms of operating principles, performance characteristics, and applications. I. Fundamental Differences in Operating Principles Rolling bearings support loa...Read More -
What is the function of a flameproof junction box?
I. Preventing the Propagation of Explosions This is the most fundamental and critical function of a flameproof junction box. In environments where flammable or explosive gases and dusts are present—such as petrochemical plants, underground coal mines, and gas stations—electrical equipment may ge...Read More -
New National Major Design Changes for Electric Motors Coming in 2026: Standard GB/T 755-2025 Targets VFD “Electric Shock” Hazards
As variable frequency drives become commonplace in industrial settings, electric motors are facing a new “invisible killer”—high-frequency pulse currents. In response to this challenge, the State Administration for Market Regulation officially released the new version of the m...Read More