摘要
以±800 kV特高压直流输电工程配套500 kV GIS的现场绝缘试验为研究对象,详细阐述了GIS现场交流耐压试验方法,并对耐压试验后SF6气体分解产物测试和投运后超声波带电局放试验进行了简要介绍,分析了试验中出现的两次绝缘击穿故障,最后对试验中相关注意问题进行了分析和阐述。
This paper takes on-site insulation test of 500kV GIS in ±800kV UHVDC transmission project as study? subject, ex-plains the method of the on-site AC withstand voltage test, has a brief introduction to the test of SF6 decomposition products after the AC withstand voltage test and the ultrasonic partial discharge test when the GIS put into operation, and analyzes the twice break-down failure during the test, finally analyzes the relevant points for attention during the test.
出处
《云南电力技术》
2015年第2期109-111,121,共4页
Yunnan Electric Power
关键词
交流耐压
局部放电
绝缘诊断
故障分析
GIS
GIS
AC withstand voltage
partial discharge
insulation diagnosis
fault analysis