| 基于超声波法的GIS盆式绝缘子内部气隙放电特性研究 |
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| 引用本文： | 周云锋,张子阳,杨景刚,贾勇勇.基于超声波法的GIS盆式绝缘子内部气隙放电特性研究[J].江苏电机工程,2012,31(4):3-5,8. |
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| 作者姓名： | 周云锋 张子阳 杨景刚 贾勇勇 |
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| 作者单位： | 1. 江苏省电力公司,江苏南京,210024
2. 江苏省电力公司电力科学研究院,江苏南京,211103 |
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| 摘 要： | 为了研究GIS盆式绝缘子内部气隙放电特性,采用三层环氧板构建了绝缘子内部气隙缺陷模型,使用超声波方法对其局部放电信号进行检测。实验结果表明,随外加电压的升高,气隙放电的放电谱图表现出"兔耳"状特点,随气隙体积和外加电压的增加,其放电幅值会随之增加,采用三电容模型对其进行了解释。检测结果为GIS局部放电的现场检测、故障定位及模式识别奠定了实验基础。
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| 关 键 词： | GIS 超声 局部放电 气隙 |
Research on Discharge Characteristics of GIS Basin Insulator Internal Air Gap Based on the Ultrasonic Method |
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| ZHOU Yun-feng
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ZHANG Zi-yang
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YANG Jing-gang
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JIA Yong-yong.Research on Discharge Characteristics of GIS Basin Insulator Internal Air Gap Based on the Ultrasonic Method[J].Jiangsu Electrical Engineering,2012,31(4):3-5,8. |
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| Authors: | ZHOU Yun-feng ZHANG Zi-yang YANG Jing-gang JIA Yong-yong |
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| Affiliation: | 1. Jiangsu Electric Power Company,Nanjing 210024,China; 2. Jiangsu Electric Power Research Institute,Nanjing 211103,China) |
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| Abstract: | In order to study discharge characteristics of GIS basin insulator internal air gap, the insulators internal air gap defect model is built by three-layer epoxy board, and the partial discharge signals are disclosed by ultrasonic method. The experimental results show that the discharge spectra of the air-gap discharge present a ＂rabbit ears＂-like characteristics with increasing applied voltage, and the discharge amplitude will increase with the increase of air gap size and applied voltage. Three-capacitor model is used in this paper. The test results lay experimental basis for the live detection of GIS partial discharge and fault location and pattern recognition.GIS; ultrasound; partial discharge; air gap |
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| Keywords: | GIS Acoustic PD Cavity discharge |
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