高电压技术2012，Vol.38Issue(3)：527-534,8.
针-板缺陷模型下局部放电量与SF_6分解组分的关联特性
Correlation Character Between Partial Discharge Quantity and SF_6 Decomposition Components Under Needle-plate Defect Model
摘要
Abstract
In order to quantitatively estimate PD severity caused by metal protrusion defect in GIS,SF6 was decomposed by PD in needle-plate defect model to form characteristics components,and the experiment had been carried out for 96 h under different voltage levels.The decomposed components were detected by gas chromatography,and charge quantity was detected by 50 Ω resistance.The results show that the components such as CF4,CO2,SO2F2,and SOF2 are produced,the volume and production speed of SO2F2 and SOF2 correlate well with mean charge quantity per second（Qsec）;within the same interval,the volume and production speed of SO2F2 and SOF2 increase with charge quantity.The ratio of（SOF2＋ SO2F2）/（CO2＋CF4） increases proximately linearly with charge quantity,while CF4/CO2 and SOF2/ SO2F2 can be used to be the auxiliary parameters to determine larger Qsec.Therefore it is suitable that SF6 decomposition components can be used to quantitatively determine the PD severity in GIS.关键词
SF6/针-板缺陷/放电量/分解组分/关联特性/气相色谱法Key words
SF6/needle-plate defect/charge quantity/decomposition component/correlation character/gas chromatography分类
信息技术与安全科学引用本文复制引用
唐炬,任晓龙,谭志红,裘吟君,孙才新..针-板缺陷模型下局部放电量与SF_6分解组分的关联特性[J].高电压技术,2012,38(3):527-534,8.基金项目
国家重点基础研究发展计划（973计划） （）
优秀博士论文基金 （）
