Industry News
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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 -
Main explosion-proof ways and methods for mining explosion-proof electrical equipment
1. Install protective casing The underground environment of coal mines is complex. Not only are various production materials piled up, but there may also be gas. If arcs and sparks are generated during the operation of electrical equipment for various reasons, fires and explosions may occur. A p...Read More -
Precautions for the use of electrical equipment in coal mines
1. Products related to safe production used in coal mines must obtain the safety mark for coal mine products. Products that have not obtained the safety mark for coal mine products shall not be used. 2. Ordinary portable electrical measuring instruments must be used in places where the gas concen...Read More -
Why is the vibration sensor so important to the motor? What is its principle?
The vibration sensor is one of the key components in the testing technology. It has the advantages of low cost, high sensitivity, stable and reliable operation, and a large adjustable range of vibration detection. It is widely used in many fields such as energy, chemical industry, medicine, autom...Read More -
Why is differential protection used on large high-voltage motors?
Compared with small and medium-sized motors, high-voltage motors are expensive, and their application scenarios are critical and special. Whether it is the disposal of the motor body after a fault or other problems derived from the fault, it may be much more serious than we can imagine. For this...Read More -
Why high-voltage motors generally use a three-bearing structure
Bearing system is an important part of the motor, is a key component of the mechanical properties of the motor embodied in the key components, to rationally configure the motor bearing system, first of all should understand the following issues. 1、Front bearing and rear bearing of the mo...Read More -
Differences between variable frequency motors and industrial frequency motors
I. Inverter motor Inverter motors are motors that use inverter technology to control the speed of the motor. Inverter technology uses electronic equipment to control the speed of the motor, thus realizing the control of the motor’s speed, power and efficiency. Frequency conversion motor by ...Read More -
Characterization of motor overload failure and cause analysis
Motor overload failure means that the motor is operating with a current that exceeds its design rating, resulting in the motor overheating, being damaged or stopping working. The following are some characteristics of motor overload faults and possible causes analyzed: Characteristics: 1. Overheat...Read More -
Considerations for structural design of explosion-proof three-phase asynchronous motors
Explosion-proof motors, as the main power equipment, are usually used to drive pumps, fans, compressors and other transmission machinery. Explosion-proof motor is the most basic type of explosion-proof motor, because of its shell non-sealed structure characteristics, the main flammable gas gas in...Read More -
Five Technology Routes for High Efficiency Motors
1 Three-phase asynchronous motors It is an electric machine for industrial use, with a power range from a few watts to tens of thousands of kilowatts, and has a wide range of applications. Mainly used in fans, pumps, compressors, machine tools, light industry and mining machinery, agricultural pr...Read More
