东北电力技术2025，Vol.46Issue(1)：35-38,58,5.
一起110 kV GIS TA接线端子严重气体泄漏故障分析
Analysis of Serious Gas Leakage Fault of 110 kV GIS TA Terminal
朱思丞 1夏拓 2汤明 1吴靖1
作者信息
- 1. 国网杭州供电公司,浙江 杭州 310007
- 2. 国网浙江省电力有限公司超高压分公司,浙江 杭州 310007
- 折叠
摘要
Abstract
It introduces a serious gas leakage failure of 110 kV gas-insulated switchgear(GIS)TA terminal in a 220 kV substation.On-site SF6 leak detector detection and return air opening inspection are carried out on the faulty gas chamber.The results show that because the wiring in a TA in the gas chamber is squeezed between the TA terminal and the circuit breaker bottom plate,the uneven force of the base after fastening is partially squeezed,and the penetrating cracking occurs under the action of long-term on-site vibra-tion and high pressure,resulting in serious gas leakage fault.It analyzes the cause of the accident that the manufacturer·s assembling process is poor,and the cable tie is not fastened at the root of the terminal.Combined with the causes of SF6 leakage failure,the pre-ventive measures are put forward to improve safe and reliable equipment operating level.关键词
组合电器/电流互感器/断路器/SF6泄漏Key words
gas-insulated switchgear/current transformer/circuit breaker/SF6 leakage分类
信息技术与安全科学引用本文复制引用
朱思丞,夏拓,汤明,吴靖..一起110 kV GIS TA接线端子严重气体泄漏故障分析[J].东北电力技术,2025,46(1):35-38,58,5.
