Analysis of the Causes of Gas Leakage of a 500kV SF6 Circuit Breaker

2019 2nd International Conference of Green Buildings and Environmental Management

生态环境科学

Fuhai, Lin^1^2 ; Zhan, Tu^1^2 ; Yeyuan, Lang^2 ; Yongqiang, Deng^1^2

Nanchang Kechen Electric Power Test and Research Co., Ltd, Nanchang, Jiangxi

330096, China^1

State Grid Jiangxi Electric Power Research Institute, Nanchang, Jiangxi

330096, China^2

关键词: 10 minutes;    Air leakage;    Control measures;    Gas leakages;    No leakages;    Power industry;    SF6 circuit breakers;    Unplanned outages;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/310/3/032009/pdf
DOI  :  10.1088/1755-1315/310/3/032009

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

The SF6 gas in the 500kV circuit breaker leaks to atmospheric pressure in about 10 minutes, and there is no leakage sign before the air leakage, resulting in unplanned outage of the equipment. This situation is rare in the power industry, and the article disintegrates from the equipment. The full analysis and force simulation of the air-side opposite porcelain sleeves analyzed the air leakage events of the circuit breaker and proposed effective control measures.