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- 2024-09-12Factors causing overheating and burning of motor windings
1. Motor winding short circuit When one phase of the motor winding is short circuited, or one of the parallel branches is short circuited, it will cause the three-phase current to be unbalanced, causing the motor to overheat. ...
- 2024-09-11Rotor problems in permanent magnet motor applications
Different motor products have different advantages and applicability. Due to different working conditions, the requirements for motor product parts are also different. For example, for heavy-load working conditions, there are special require ...
- 2024-09-10Motor shaft voltage test method
The purpose of measuring the motor shaft voltage is to understand the magnitude of the motor shaft current. When the motor shaft current reaches a certain level, it will cause the motor bearing to overheat, the bearing or bearing seat to hav ...
- 2024-09-09Why can't the voltage withstand test be repeated?
The withstand voltage test is a test of the insulation performance of the motor during the production and processing of the motor winding and the test of the whole machine product. The standard for qualification is whether the motor is not b ...
- 2024-09-06Is the number of poles of the motor rotor fixed?
The number of rotor poles of a motor refers to the number of magnetic poles on the motor rotor; the number of rotor poles of a motor affects the motor speed and torque. For cage-type motors ...
- 2024-09-05Necessity of safety upgrade of standard increased safety mot
1. Increased safety explosion-proof motors are widely used in flammable and explosive hazardous places, and their explosion-proof performance is closely related to safe production. At present, a large number of increased safety explosion-pro ...
- 2024-09-05Reason the frequency converter causes the Ex motor to burn
The explosion-proof frequency converter motor is a type of explosion-proof motor product and is the basic power equipment for industrial agriculture. With the rapid development of electronic technology, the AC speed regulation method of "exp ...
- 2024-09-03Selection Guide for Motors for High-Pressure Centrifugal Pum
In industry and manufacturing, high-pressure centrifugal pumps are widely used for operations such as conveying liquids, increasing pressure, and performing process treatments. The operating efficiency and reliability of high-pressure centri ...
- 2024-09-02How to Analyze the Quality of Cast Aluminum Rotors
The quality of cast aluminum rotors affects the efficiency, power factor, and starting and running performance of motors. In order to comprehensively improve the quality of rotors, it is necessary not only to analyze the defects of cast alum ...
- 2024-08-30Comparison of five motor starting methods
① Full-voltage direct starting When both the grid capacity and the load allow full-voltage direct starting, full-voltage direct starting can be considered. Advantages: convenient operation and control, simple maintenance, and relatively ...
