News
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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 -
The Bearing Philosophy of High-Voltage Motors: Why One End Must Be Fixed and the Other Free
At the heart of industrial production, high-voltage motors serve as the critical power source driving large fans, compressors, and crushers. For these “hearts” of the operation, stability and reliability are paramount. Observant individuals might notice an intriguing design ...Read More -
Understanding the Limitations of Using Standard Grid-Frequency Motors with Variable Frequency Drives
In the world of industrial motor applications, Variable Frequency Drives (VFDs) have become essential tools for energy savings and process control. A common question we encounter, especially from overseas buyers, is: “Can I use a standard IE4 grid-frequency motor with a VFD?” The shor...Read More -
How Altitude Affects Industrial Motor Output Power
Altitude is a critical environmental factor that directly influences the performance and rated output of three phase electric motors. Most standard motors are designed to operate at full capacity at altitudes up to 1,000 meters above sea level. As elevation increases beyond this threshold, air de...Read More -
Causes of Low Motor Efficiency: Key Loss Factors Analysis for Industrial Motors
High-efficiency motors are closely tied to global energy conservation and emission reduction policies. IE3 energy efficiency has become the basic threshold for motors in national key projects, municipal tenders and especially exports to European countries. However, motor manufacturers face great ...Read More -
High-Efficiency Foundation + Flexible Capability: The Complementary Logic of Permanent Magnet and Variable Frequency Motors
In practical applications, many people confuse permanent magnet motors with variable frequency motors. In fact, they are motor categories from different dimensions with completely distinct core definitions, and are not an either-or alternative. Permanent magnet motors are classified by excitatio...Read More