Key factors influencing capacitor quality summarized by Beijing capacitor manufacturers

Beijing capacitor manufacturers believe that in the history of the development of power capacitors, the cost is inversely proportional to the field strength on the medium. Therefore, the research, design, process, production technology and dielectric and other raw materials of power capacitor are all carried out around this purpose.

On the premise of ensuring the quality and service life of the capacitor, how to improve the field strength to the right level? In the development history of capacitor field strength improvement, three key problems that affect the quality of capacitor limit the improvement of field strength, which are breakdown, heating and partial discharge. Reasonable treatment of the breakdown, heating and partial discharge of the capacitor determines the cost and quality of the capacitor.

There are two kinds of abnormal conditions in the normal operation of high-voltage capacitor, one is the problem after installation and operation, the other is the problem after long-term operation. The leakage of capacitor will make moisture and moisture in the surrounding air enter into the capacitor, which will lead to the decrease of insulation resistance and the decrease of oil level, which will make the internal components of capacitor unable to infiltrate into the oil normally and cause breakdown, thus damaging the capacitor.

Solution: return to factory for repair or replacement. In general, water and pollutants enter the capacitor with water and oil leakage. This maintenance requires professional equipment to dry, filter oil and clean components, and the shell often needs grinding, welding and painting. Moreover, these processes require high process requirements, and the general substation site does not have hardware equipment to deal with such problems.