| 外部传感器超高频GIS局部放电检测技术 |
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| 引用本文： | 李忠,张晓枫,陈杰华,胡迪军,冯允平.外部传感器超高频GIS局部放电检测技术[J].西安交通大学学报,2003,37(12):1280-1283. |
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| 作者姓名： | 李忠 张晓枫 陈杰华 胡迪军 冯允平 |
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| 作者单位： | 西安交通大学电气工程学院,710049,西安 |
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| 摘 要： | 针对GIS同轴结构中局部放电脉冲所激发电磁波的宽频带特征，设计出一种新型局部放电超高频检测非频变超宽带天线，用无限巴伦实现天线和传输线之间的阻抗匹配．由超宽带天线、宽带放大器、数字存储示波器和计算机组成外部传感器超高频局部放电检测系统，利用该系统对所建立的GIS固定微粒局部放电模型进行检测，并对局部放电源进行定位，实验结果表明，设计的天线满足GIS局部放电超高频检测要求，建立的系统可以方便地实现GIS局部放电检测和局部放电源的定位。
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| 关 键 词： | 局部放电 超高频 检测 气体绝缘的金属封闭式组合电器 |
| 文章编号： | 0253-987X(2003)12-1280-04 |
| 修稿时间： | 2003年3月19日 |
External Sensors Ultra High Frequency Partial Discharge Detection of GIS |
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| Li Zhong,Zhang Xiaofeng,Chen Jiehua,Hu Dijun,Feng Yunping.External Sensors Ultra High Frequency Partial Discharge Detection of GIS[J].Journal of Xi'an Jiaotong University,2003,37(12):1280-1283. |
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| Authors: | Li Zhong Zhang Xiaofeng Chen Jiehua Hu Dijun Feng Yunping |
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| Abstract: | Aiming at the broadband feature of electromagnetic wave of partial discharge(PD) pulse excited in gas-insulated metal-enclosed switchgear(GIS), a new type ultra high frequency(UHF) PD detection frequency independent ultra wide band antenna was designed, which realized impedance-match between antenna and signal transmission line by infinite balun. An external sensors(antenna)UHF detection system of PD consisted of antenna, wide band amplifier, digital stored oscillograph and computer is used to detecte and locate the partial discharge of fixed protrusion of GIS. The experimental results show that this type antenna can meet the need of PD UHF measure, and the system can detect and locate conveniently PD in GIS. |
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| Keywords: | partial discharge ultra high frequency detection gas-insulated metal-enclosed switchgear |
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