| 高压交联聚乙烯电缆附件局部放电特性分析 |
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| 引用本文： | 唐炬,龚宁涛,李伟,张晓星,魏钢.高压交联聚乙烯电缆附件局部放电特性分析[J].重庆大学学报(自然科学版),2009,32(5):528-535. |
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| 作者姓名： | 唐炬 龚宁涛 李伟 张晓星 魏钢 |
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| 作者单位： | 重庆大学,输配电装备及系统安全与新技术国家重点实验室,重庆,400030
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| 基金项目： | 国家重点基础研究发展规划(973计划) |
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| 摘 要： | 构建了110 kV电缆中间接头内部4种典型绝缘缺陷物理模型,通过建立电缆附件局部放电(partial discharge,PD)试验研究平台,获取不同绝缘缺陷模型下的放电数据,并构造了三维放电图谱,分析了单次脉冲的时频域特征及放电统计特性.试验结果显示,在起始放电阶段各缺陷下的放电脉冲波形比较稳定,时频特性有明显差异,其随机性主要表现为脉冲峰值的波动,而放电区间、放电重复率等统计特征也有很大不同,这些特征可用作放电类型识别的依据.
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| 关 键 词： | 电缆附件 局部放电 缺陷模型 放电图谱 |
| 收稿时间： | 2008/12/6 0:00:00 |
Characteristic analysis of partial discharge in high voltage XLPE cable accessories |
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| TANG Ju,GONG Ning tao,LI Wei,ZHANG Xiao xing and WEI Gang.Characteristic analysis of partial discharge in high voltage XLPE cable accessories[J].Journal of Chongqing University(Natural Science Edition),2009,32(5):528-535. |
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| Authors: | TANG Ju GONG Ning tao LI Wei ZHANG Xiao xing and WEI Gang |
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| Affiliation: | State Key Laboratory of Power Transmission Facilities & System Security and New Technology;Chongqing University;Chongqing 400030;P.R.China |
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| Abstract: | Four physical models of typical internal insulation defects in 110 kV cable joints are designed and a test platform for partial discharge(PD) research on cable accessories also is constructed.Based on the models,plenty of PD data are obtained for various models and the related phase-resolved distribution.Through detailed analysis of the time and frequency domain characteristics of a single pulse current and discharge characteristics statistics,the experimental results show that the waveforms are stable in t... |
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| Keywords: | cable accessories partial discharge defect models phase-resolved distribution of discharge |
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