| 220 kV电流互感器局部放电缺陷不停电检测与分析 |
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| 引用本文： | 葛猛,李鹏,陶安培,于全福.220 kV电流互感器局部放电缺陷不停电检测与分析[J].高压电器,2009,45(6). |
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| 作者姓名： | 葛猛 李鹏 陶安培 于全福 |
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| 作者单位： | 吉林供电公司,吉林,吉林,132001 |
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| 摘 要： | 介绍了一例220 kV电流互感器电容屏间局部放电故障处理过程,采用红外成像技术与油色谱分析技术结合对故障的成因进行分析:绝缘材质不良、干燥时间不达标、干燥窑使用超容量、绝缘包裹工艺不良,出现较多局部褶皱等。成功避免了一起威胁220 kV设备事故的发生,阐述了不停电检测技术对电力系统运行安全的重要性。
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| 关 键 词： | 电流互感器 局部放电 三比值法 |
On-line Detection and Analysis of Partial-discharge FAULT for 220 kV Current Transformer |
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| GE Meng,LI Peng,TAO An-pei,YU Quan-fu.On-line Detection and Analysis of Partial-discharge FAULT for 220 kV Current Transformer[J].High Voltage Apparatus,2009,45(6). |
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| Authors: | GE Meng LI Peng TAO An-pei YU Quan-fu |
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| Abstract: | The detection and process of a 220 kV current transformer partial-discharge fault between capacitor shields are described.The causes of the fault were analyzed with infrared imaging technology and oil chromatographic analysis.The result indicated that this partial-discharge fault is due to unqualified insulation material,shorter drying time,and poor insulator packing technique,etc.Therefore,an accident of the 220 kV current transformer was avoided.In addition,the importance of on-line detection technology on power system security is discussed. |
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| Keywords: | current transformer partial discharge three-ratio method |
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