LW6-220型断路器绝缘拉杆脱落故障分析  

Falling-off Failure Analysis on Insulation Lever of LW6-220 Circuit Breaker

作　　者：马虎涛 黄章强[1] 

机构地区：[1]中国南方电网超高压输电公司天生桥局,贵州兴义562400

出　　处：《高压电器》2014年第11期128-132,138,共6页High Voltage Apparatus

摘　　要：研究LW6-220型断路器绝缘拉杆脱落原因,提出具体的预防措施(绝缘拉杆松动的直接检查方法和绝缘拉杆松动的试验检查方法),为该型设备能够继续良好的运行提供了强有力技术支持。通过对已经故障的断路器进行理论分析和数据研究,对比还未故障LW6-220型断路器进行分析。得出LW6-220型断路器绝缘拉杆脱落是由材料、工艺、结构以及使用时间引起,介绍了直接检查和试验两种检查方法。LW6-220型断路器由于自身缺陷原因在达到使用年限后会陆续出现绝缘拉杆脱落现象。The failed LW6-220 circuit breakers with falling-off failure of insulation lever are analyzed theoretically, and are compared with normal LW6-220 circuit breaker. Conclusion is drawn that the falling-off failure of insulation lever of the LW6-220 circuit breaker is related to material, manufacturing process, circuit breaker structure, and use time. Moreover, a direct inspection method and a testing method are presented for preventing the LW6-220 circuit breaker from falling-off failure of insulation lever.

关 键 词：LW6-220型断路器 绝缘拉杆 脱落 

分 类 号：TM561[电气工程—电器]