河北水利电力学院学报2026，Vol.36Issue(3)：47-55,9.DOI:10.16046/j.cnki.issn2096-5680.2026.03.008
换流变套管SF6气体分解物异常与防范策略研究
Research on Abnormal SF6 Gas Decomposition Products in Converter Transformer Sleeve and Prevention Strategies
张宏伟1
作者信息
- 1. 国网甘肃省电力公司 金昌供电公司,甘肃省金昌市新华路78号 737100
- 折叠
摘要
Abstract
The SF6 gas in the casing only has insulation function,and the equipment generally does not undergo partial discharge during operation.It is necessary to conduct in-depth research on why SF6 gas produces decomposition products under this working condition.The operating conditions inside the casing can be determined by the composition and content of the decomposition products.This article analyzes the first abnormal SF6 gas decomposition accident on the side sleeve of a DC±500 kV converter valve in Chi-na.Through tests such as decomposition component detection,disassembly inspection,voltage withstand test,and current flow test,the causes and failure mechanisms of SO2 and other pollutants are inferred and demonstrated,and targeted preventive measures are proposed.The research content and achievements of the article fill the gap in this technical field,providing valuable reference and basis for the prevention and treatment of similar problems and hidden dangers.关键词
直流输电/套管/SF6 气体绝缘/分解物/低能量放电Key words
direct current transmission/casing/SF6 gas insulation/decomposition products/low ener-gy discharge分类
信息技术与安全科学引用本文复制引用
张宏伟..换流变套管SF6气体分解物异常与防范策略研究[J].河北水利电力学院学报,2026,36(3):47-55,9.
