1000 kV GIS隔离开关三相动作不一致故障分析  

Fault Analysis of Inconsistent Three-phase Operation of 1000 kV GIS Isolation Switchgear

作　　者：余爽 徐昊 李天慧 张祥虎 孔卫亚 史瑞楠 张程 YU Shuang;XU Hao;LI Tianhui;ZHANG Xianghu;KONG Weiya;SHI Ruinan;ZHANG Cheng(UHV Company of State Grid Jiangsu Electric Power Co.,Ltd.,Nanjing 211100)

机构地区：[1]国网江苏省电力有限公司超高压分公司,江苏南京211100

出　　处：《电力安全技术》2023年第4期17-19,共3页Electric Safety Technology

摘　　要：分析了一起1000 kV GIS隔离开关在操作过程中因电机烧毁和设计缺陷导致的拒分拒合故障。阐述了故障的发展过程,结合一、二次检查结果及参数校核计算,发现控制回路缺陷及电机选型裕度不足是故障产生的主要原因,最后给出了相应的处理措施及建议。Analysis is conducted on a 1000 kV GIS isolation switch that experienced a failure to open or close due to motor burning and design defects during its operation.The fault development process is described.Combined with the first and second inspections and the calculations for parameter verification,it is found that control circuit defects and insufficient motor selection margin are the main causes of such a fault.Finally,the corresponding treatment measures and suggestions are put forward.

关 键 词：气体绝缘金属封闭开关设备 隔离开关 电机 参数校核 

分 类 号：TM564.1[电气工程—电器]