| 污秽绝缘子闪络特性试验研究 |
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| 引用本文： | 彭波,周卫华,汤美云,黄福勇.污秽绝缘子闪络特性试验研究[J].湖南电力,2012(5):1-6. |
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| 作者姓名： | 彭波 周卫华 汤美云 黄福勇 |
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| 作者单位： | 湖南省电力公司科学研究院;湖南省电力公司 |
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| 摘 要： | 通过EMTP仿真分别获取0.5/5μs和2.6/50μs绝缘子串反击和绕击条件下的电压波形,并选取电阻-电容隔离回路作为工频回路与冲击电压发生器的隔离电路,同时确定污秽绝缘子制备方法和湿润方式。通过试验,得到在0.5/5μs和2.6/50μs两种冲击电压波形条件下,污秽绝缘子在工频叠加冲击时闪络电压变化的基本规律。
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| 关 键 词： | 污秽绝缘子 闪络特性 隔离回路 工频叠加冲击 |
Study on flashover characteristics of contaminated insulators |
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| PENG Bo,ZHOU Wei-hua,TANG Mei-yun,HUANG Fu-yong.Study on flashover characteristics of contaminated insulators[J].Hunan Electric Power,2012(5):1-6. |
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| Authors: | PENG Bo ZHOU Wei-hua TANG Mei-yun HUANG Fu-yong |
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| Affiliation: | 1(1.Hunan Electric Power Corporation Research Institute,Changsha 410007,China; 2.Hunan Electric Power Corporation,Changsha 410007,China) |
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| Abstract: | Both 0.5/5μs and 2.6/50μs waveform was chosen to as the shielding failure and back flash overvoltage waveform respectively through EMTP simulation,and the resistance-capacitor circuit was selected to as the separated circuit of power frequency circuit and impulse voltage generator.The preparation of contaminated insulators and wetting methods were determined at the same time based on the measurements above.Through the test,the basic law of flashover voltage of contaminated insulator string was acquired at power frequency superposition impulse voltage under both 0.5/5μs and 2.6/50μs waveform. |
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| Keywords: | contaminated insulators flashover characteristics separated circuit power frequency superposition impulse |
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