| 基于两起故障实例的500kV CVT故障原因对比分析 |
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| 引用本文： | 杨洋,覃伟,许强,郭锐,张智勇.基于两起故障实例的500kV CVT故障原因对比分析[J].四川电力技术,2012(1):83-84. |
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| 作者姓名： | 杨洋 覃伟 许强 郭锐 张智勇 |
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| 作者单位： | 四川省电力公司超特高压运行检修公司,四川成都610041 |
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| 摘 要： | 介绍两起500 kV电容式电压互感器因电容分压器中部分电容元件被击穿导致二次电压升高的故障实例,并基于这两起实例,对密封不良导致电容芯子受潮以及电容局部绝缘缺陷这两种不同的故障原因进行了分析,并对不同故障原因下的不同试验结果进行了对比和讨论。
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| 关 键 词： | 电容式电压互感器 故障 绝缘缺陷 介损 电容元件 |
Comparison and Analysis of Fault Causes for 500 kV Capacitor Voltage Transformer Based on Two Cases |
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| Affiliation: | Yang Yang Qin Wei Xu Qiang et al |
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| Abstract: | Two cases of 500 kV capacitor voltage transformers in which the breakdown of part of the capacitance elements leads to the arising of secondary voltage are introduced,the causes of faults including poor sealing and partial insulation defects are analyzed based on these two cases,and the different test results under different causes of faults are compared and discussed. |
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| Keywords: | capacitor voltage transformer fault insulation defect dielectric loss capacitance element |
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