摘要
通过对一起220kV SF6断路器预试过程中分、合闸时间不同期超标缺陷的分析,发现引起缺陷的根本原因是断路器灭弧室的直动密封与直动密封杆锈蚀.并针对性地提出了预防措施。
Through analysis a 220 kV SF6 circuit breaker synchronization test, found the primary cause which made the circuit breaker break or connect time do not meet the standard. That were the straight seal and the straight sealing valve stem of arcing chamber - ding led to this defect. The corresponding prevention measures were put forward.
出处
《贵州电力技术》
2012年第12期58-59,共2页
Guizhou Electric Power Technology
关键词
断路器
不同期
锈蚀
circuit breaker
non - synchronizing
corrosion