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Better knowing for DC motors
DC motors are an important part of the industrial sector, especially in the metallurgical industry, where they are used in a wide variety of applications. These motors are available in power ranges from 0.4kW to 2500kW and operating voltages from 110V to 750V. Their versatility and efficiency mak...Read More -
What is variable frequency variable speed three-phase asynchronous motor?
Variable frequency variable speed three-phase asynchronous motors are becoming increasingly popular in industrial and commercial applications due to their ability to reduce noise and reduce vibration. These motors are designed to operate at different speeds and frequencies, providing better contr...Read More -
How to distinguish cooling method IC411 and IC416?
IC411 and IC416 are two different methods of motor cooling, which have different characteristics and uses in industrial applications. Three-phase induction motors, also known as AC motors, are widely used in various industrial and commercial applications due to their reliability and efficiency. T...Read More -
Why do low pole count motors often suffer from phase-to-phase faults?
Low pole count motors often suffer from phase-to-phase faults due to the specific characteristics of their winding coils and the challenges associated with their construction process. Phase-to-phase faults are unique electrical faults in three-phase motor windings, and are mostly concentrated in ...Read More -
Why there is shaft current in motors and how to prevent it?
Shaft currents in motors are a common problem that can lead to premature failure and expensive repairs. Understanding the causes of shaft currents and how to prevent and treat them is critical to maintaining the efficiency and longevity of motor systems. Shaft current is the current flowing thro...Read More -
Correlation between motor bore scraping and bearing failure
In the failure cases of motor products, some secondary failures often occur due to a certain failure, such as winding failure caused by bearing system failure, bearing system problems caused by increased winding temperature, etc. Today, we will discuss with you the correlation between bore sweepi...Read More -
Discussion on bearing clearance and configuration
The selection of bearing clearance and configuration is an extremely important part of motor design. If you do not know the performance of the bearing and choose a solution, it is likely to be a failed design. Different operating conditions will have different requirements for bearings. Ms. Shen ...Read More -
A brief discussion on impregnation varnish used in motor winding manufacturing
Impregnation varnish is used to impregnate electrical coils and windings to fill the gaps therein, so that the wires of the coils and the wires and other insulating materials are bonded together to improve the electrical strength, mechanical properties, thermal conductivity and protective propert...Read More -
What should be paid attention to in daily inspection and maintenance of the motor control system?
The control system of the motor is composed of switches, fuses, main and auxiliary contactors, relays, temperature, induction devices, etc., which is relatively complex. There are many kinds of faults, and it is often necessary to analyze and troubleshoot with the help of control schematic diagra...Read More -
Quality failure case analysis: Shaft current is the hacker of the motor bearing system
Shaft current is a major quality killer of variable frequency motors, large motors, high voltage motors and generators, and it is extremely harmful to the motor bearing system. There are many cases of bearing system failures due to inadequate shaft current prevention measures. The characteristics...Read More -
Four performance orientation contradictions faced during motor rotor slot selection!
The shape and size of the rotor slots have a direct impact on the rotor resistance and leakage flux, which in turn will affect the motor’s efficiency, power factor, maximum torque, starting torque and other performance indicators. The performance that is affected is of great importance to m...Read More -
Analysis of common problems in motor rolling bearing systems
Bearing failure is a relatively concentrated type of motor failure, which has a great relationship with the selection, installation and later use and maintenance of bearings. Ms. combined some actual analysis cases and data accumulation to simply classify the failures and causes of rolling bearin...Read More