Correlation Characteristics Comparison of SF6 Decomposition versus Gas Pressure under Negative DC Partial Discharge Initiated by Two Typical Defects
Correlation Characteristics Comparison of SF6 Decomposition versus Gas Pressure under Negative DC Partial Discharge Initiated by Two Typical Defects
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两种典型缺陷引起的负直流局部放电下SF6分解与气体压力相关特性比较
DOI：
10.3390/en10081085
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发表时间：
2017-07
期刊：
影响因子：
3.2
通讯作者：
Chen Lincong
中科院分区：
文献类型：
--
作者：
Yang Dong;Tang Ju;Yang Xu;Li Ke;Zeng Fuping;Yao Qiang;Miao Yulong;Chen Lincong
为了阐明负直流气体绝缘组合电器（GIS）内部局部放电（PD）与由两种典型缺陷（即，游离金属颗粒和金属突起），在构建SF6直流放电分解实验平台的基础上，研究了不同压力下SF6的放电分解。分别采用球碗电极和针-板电极模拟GIS中的游离金属颗粒和金属突起。通过不同缺陷条件下的实验，对比分析了不同压力下SF6分解组分SOF 2、SO2 F2、CO2和SO2的性能变化趋势和差异。基于气体微观电离理论，推导并验证了分解组分与气压的关系。不同缺陷下不同分解组分的浓度随气压的变化而变化，而分解组分的特征比值随气压的变化趋势相似。
Aimed to clarify the correlation characteristics between the internal partial discharge (PD) in negative direct current (DC) gas insulated system (GIS) and gas pressure initiated by two typical defects (i.e., free-metal particles and metal protrusion), this study on PD decomposition of sulfur hexafluoride (SF6) was investigated under different pressures on the basis of constructing a SF6 decomposition experimental platform with DC PD. Free-metal particles and metal protrusion in a GIS were simulated using a spherical-bowl electrode and a needle-plate electrode, respectively. Trends and differences in the performance of SF6 decomposition components SOF2, SO2F2, CO2, and SO2 at different pressures were compared and analyzed by experiments under different defects. Based on gas microscopic ionization theory, the relationship between the decomposition component and gas pressure was deduced and verified. The concentrations of different decomposition components were found to vary with the change in gas pressure under different defects, whereas the characteristic ratios of decomposition components versus gas pressure showed a similar trend.
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DOI：
10.1007/978-3-642-61247-3
发表时间：
1991-10
期刊：
--
影响因子：
--
作者：
Iu. P. Raizer
通讯作者：
Iu. P. Raizer
影响因子：
3.2
作者：
A. Belarbi;C. Pradayrol;J. Casanovas;A. Casanovas
通讯作者：
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影响因子：
4.4
作者：
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通讯作者：
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DOI：
10.1109/tdei.2014.6832269
发表时间：
2014-06
影响因子：
3.1
作者：
Ju Tang;F. Zeng;Xiaoxing Zhang;Jianyu Pan;Q. Yao;Xingzhe Hou;Yang Tang
通讯作者：
Ju Tang;F. Zeng;Xiaoxing Zhang;Jianyu Pan;Q. Yao;Xingzhe Hou;Yang Tang
DOI：
10.1049/ic:19960997
发表时间：
1996-10
期刊：
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影响因子：
--
作者：
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通讯作者：
B. Crichton