Maintenance Strategies To Improve The Performance Of Sf6 Circuit Breaker Operating Mechanisms

In high-voltage power systems, the metal components and sealing assemblies inside the sf6 circuit breaker operating mechanism are affected by factors such as environmental humidity and gas decomposition products during long-term operation, leading to corrosion and increased movement resistance.

The chemical reactions resulting from internal corrosion, particularly the reaction between moisture and SF6 decomposition products, generate corrosive fluorides that damage metal surfaces. Therefore, monitoring gas quality and humidity levels is crucial. Regularly testing SF6 purity and humidity allows for analysis of the internal condition and the development of subsequent maintenance measures.

The mechanical parts of the sf6 circuit breaker spring mechanism, such as springs, linkages, and motion links, may experience sluggish movement or blockage after prolonged operation. To address these issues, establishing periodic lubrication and wear inspection procedures and recording the condition data of mechanical components helps determine wear trends and implement replacement plans.

Seals and gaskets play a vital role in maintaining the isolation of the internal environment. Assessing the aging of these materials and replacing them when necessary controls internal moisture infiltration, thereby slowing down the corrosion process. Internal airtightness checks should also be included in routine maintenance.