Introduction to variable frequency power supply
Today, variable frequency power supply manufacturers, like other industries, are facing fierce market competition in the continuous development of the market. At present, my country's variable frequency power supply products are relatively complete, including single-phase three-phase integrated variable frequency power supply, single-phase variable frequency power supply, three-phase variable frequency power supply, etc. The product quality advantages of these variable frequency power supplies are deeply recognized by the market and are widely used in industrial production, experiments, scientific research institutions, universities, etc. As competition continues to intensify, variable frequency power supply manufacturers need to increase their efforts in technological innovation and product innovation to seize market opportunities.
Advantages of variable frequency power supply
The inherent advantages of variable frequency power supply have made AC variable frequency power supply speed regulation technology widely used in industrially developed countries. The application of variable frequency power supply in my country is also very extensive. Therefore, variable frequency power supply manufacturers can only have sustainable and healthy development if they continue to innovate technology on the basis of the original market, especially moving towards energy saving. Everyone knows that as long as it is an electric object, it will definitely heat up after a long period of use, just like our commonly used mobile phones. If we feel that the mobile phone is hot after a long period of use, then the variable frequency power supply is usually the same, but the variable frequency power supply will be equipped with a cooling fan.
Causes of heating of variable frequency power supply and heat dissipation methods
The heating of variable frequency power supply is caused by internal loss. Among the losses of various parts of variable frequency power supply, single-phase variable frequency power supply and three-phase variable frequency power supply, the main circuit is the main one, accounting for about 98%, and the control circuit accounts for 2%. In order to ensure the normal and reliable operation of the variable frequency power supply, the variable frequency power supply must be cooled. Usually, there are the following methods:
1. Use fan cooling. The built-in fan of the variable frequency power supply can take away the heat inside the variable frequency power supply box. Therefore, the fan of the variable frequency power supply should be checked frequently. If the fan does not work properly, the variable frequency power supply should be stopped immediately.
2. Reduce the installation environment temperature. Since the variable frequency power supply is an electronic device containing electronic components, electrolytic capacitors, etc., the temperature has a greater impact on its life. Usually, the ambient operating temperature of the variable frequency power supply is generally required to be -10℃ to -50℃. If measures can be taken to reduce the operating temperature of the variable frequency power supply as much as possible, the service life of the variable frequency power supply will be extended and the performance will be more stable.
Therefore, in the actual use of variable frequency power supply, a separate variable frequency power supply low-voltage room can be built, and air conditioning can be installed inside to keep the temperature of the low-voltage room between +15℃~+20℃.
Summary
After the above two methods of heat dissipation of variable frequency power supply, the variable frequency power supply can be used for a longer time and its life can be extended, just like when we use the variable frequency power supply, mastering the method can make our machine smoother.
