百龙滩电厂220 kV母线侧GW17A-252型隔离开关合闸不到位的分析及处理

Analysis and Treatment of Inadequate Closing of GW17A-252 Disconnector on 220 kV Busbar Side in Bailongtan Power Plant

针对百龙滩电厂220 kV母线侧GW17A-252型户外高压交流隔离开关合闸不到位的情况,笔者总结分析了故障原因,介绍了故障处理方法,并分析了在特定条件下的隔离开关故障处理工作中的风险和控制措施,得出了不停电综合检修和状态检修的必要性。该故障处理经验为类似故障处理和防范措施制定提供参考。

In view of the fact that the GW17A-252 outdoor high-voltage AC disconnector on the 220 kV busbar side of Bailongtan Power Plant does not close in place, the author summarizes and analyzes the causes of the fault,introduces the fault treatment methods, and analyzes the risks and control measures in the fault treatment of the disconnector under specific conditions. It is concluded that the comprehensive maintenance without power failure and condition-based maintenance are necessary. The fault handling experience provides reference for similar fault handling and preventive measures.