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Three problems caused by direct starting of industrial frequency motors
Starting performance is a key feature of any motor product that cannot be ignored. Different operating conditions have different requirements for motor starting performance, so motors with specific characteristics are needed. However, direct starting of squirrel cage rotor power frequency motors ...Read More -
What is the apparent power of a motor?
The apparent power of a motor is a key parameter that plays an important role in understanding the performance and operating efficiency of the motor. It is defined as the product of the effective values of the voltage and current at the power terminals when the motor is running. This measurement ...Read More -
What is an air bearing?
An air bearing for electric motor is an innovative non-contact bearing that uses gas (usually air or nitrogen) as a lubricant to support moving parts. Unlike traditional mechanical bearings that rely on solid contact surfaces, air bearings operate on a unique principle that utilizes the buoyancy ...Read More -
Why does variable frequency power supply damage motor bearings?
Variable frequency power supplies (VFPS) are widely used in industrial applications to control the speed and torque of AC motors. However, a significant concern with their use is the damage they can cause to motor bearings. Understanding the underlying mechanisms can help mitigate these risks. ...Read More -
What does“NO wear” bearings mean?
The term “NO wear” literally means “no wear”, a concept that captures the innovative design and functionality of this new generation of bearings for electric motor. Essentially, “NO wear” bearings are designed to be extremely durable, reliable and long-lasting....Read More -
Measures to control motor temperature rise
The temperature rise of a motor‘s stator windings is a key factor affecting motor performance and life. Understanding the relationship between current and temperature is essential for effective motor management. Studies have shown that the temperature rise of an electric induction motorR...Read More -
Understanding the power changes of variable frequency motors
When discussing variable frequency motors, a key aspect to consider is how power varies with speed and torque. In low speed constant torque mode, the electric motor operates under conditions where the torque remains constant as the frequency varies. This feature is critical for applications that ...Read More -
Why should the motor be grounded?
Grounding the electric motor housing is an important safety measure that greatly reduces the risk of electric shock accidents. When the motor is properly grounded, any stray current that may be generated due to insulation failure or other faults is safely directed to ground. This not only protect...Read More -
The impact of variable frequency operation on motor shaft current
Variable frequency drives (VFDs) have become essential for controlling electric motor speed and torque in modern industrial applications. However, the operation of these systems introduces complexity, especially with regard to motor shaft current. Motor shaft current can be divided into low-frequ...Read More -
What is a hydrodynamic bearing?
A hydrodynamic bearing of a three phase electric motor is a bearing that uses fluid (gas or liquid) as a support medium to reduce friction between moving parts. Unlike traditional bearings, which rely on a solid surface to support the load, hydrodynamic bearings create a thin film of fluid that s...Read More -
How to perform daily maintenance on the positive pressure purge device of explosion-proof motor？
Maintaining a positive pressure purge on explosion proof motors is critical to ensuring optimal performance and safety in hazardous environments. Regular maintenance not only prolongs the life of the equipment, but also ensures compliance with safety standards. The following are key steps to foll...Read More -
Research on the design of high-voltage and high-efficiency flameproof three-phase asynchronous motor
The advancement of high-voltage and high-efficiency tubular flameproof three-phase asynchronous motors is essential for various industrial applications, especially those in hazardous environments. A key aspect of the design is the use of flameproof round tube structure to ensure safety and reliab...Read More