| 组合电器盆式绝缘子内部气隙缺陷的带电检测与分析 |
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| 引用本文： | 周云锋,杨景刚,张子阳.组合电器盆式绝缘子内部气隙缺陷的带电检测与分析[J].高压电器,2012,48(9):112-116. |
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| 作者姓名： | 周云锋 杨景刚 张子阳 |
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| 作者单位： | 1. 江苏省电力公司,南京,210024
2. 江苏省电力公司电力科学研究院,南京,210036 |
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| 摘 要： | 笔者通过局部放电超高频检测、缺陷定位、模式识别以及解体等,分析了一起组合电器GIS盆式绝缘子内部气隙缺陷,阐述了基于信号能量衰减法和到达时延法的缺陷精确定位过程,又根据超高频信号PRPD谱图特征对缺陷类型进行了识别,最后通过解体查找到了该内部气隙缺陷。
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| 关 键 词： | 局部放电 绝缘子内部气隙 缺陷 |
On-line Detection and Analysis of Gas Cavity in Insulator of Gas Insulated Switchgear |
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| ZHOU Yun-feng
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YANG Jing-gang
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ZHANG Zi-yang.On-line Detection and Analysis of Gas Cavity in Insulator of Gas Insulated Switchgear[J].High Voltage Apparatus,2012,48(9):112-116. |
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| Authors: | ZHOU Yun-feng YANG Jing-gang ZHANG Zi-yang |
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| Affiliation: | 1(1.Jiangsu Electric Power Company,Nanjing 210024,China;2.Research Institute of Jiangsu Electric Power Company,Nanjing 210036,China) |
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| Abstract: | A defect of gas cavity in insulator of a gas insulated switchgear is analyzed by means of ultra-high frequency detection of partial discharge(PD),location of defect,pattern recognition,equipment disassembly and experiments.The accurate defect location based on the energy attenuation of ultra-high frequency signal and the time delay of signal arrival is discussed.The defect type is recognized according to the characteristics of PRPD spectrum of the ultra-high frequency signal.Moreover,the defect of gas cavity in insulator is found out though disassembly. |
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| Keywords: | partial discharge(PD) gas cavity in insulator defect |
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