| 引用本文: | 李明,舒乃秋,彭旭东,刘敏.基于声发射技术的绝缘子污秽放电监测[J].电力自动化设备,2004,(6):98-100 |
| .Insulator contaminant flashover monitoring based on acoustic emission technique[J].Electric Power Automation Equipment,2004,(6):98-100 |
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| 摘要: |
| 在绝缘子污秽放电存在声发射现象的基础上，提出了一种基于声发射技术监测绝缘子污秽放电的方法，并研制出绝缘子污秽放电监测装置。进行了大量污秽试验，试验结果表明．随着绝缘子污秽放电强度的加强，放电产生的声波信号也随之加强，信号脉冲的幅值增大，脉冲出现的频率也增大。绝缘子污秽放电产生的声波信号可以真实反映绝缘子污秽放电过程．通过监测声波信号可以判断放电的发展趋势及对电力系统的危害性。 |
| 关键词: 声发射 绝缘子 污秽放电 监测 |
| DOI： |
| 分类号:TM216 |
| 基金项目: |
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| Insulator contaminant flashover monitoring based on acoustic emission technique |
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LI Ming 1 SHU Nai - qiu 1 PENG Xu - dong 1 2 LIU Min 3
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| Abstract: |
| A method for monitoring insulator contaminant flashover is proposed based on the acous - tic emission phenomenon ,which occurs during insulator contaminant flashover and the monitoring device has been developed.Experiments are carried out and the experimental results prove that the intensity of acoustic signals generated by contaminant flashover increases as the intensity of contaminant flashover increases and the magnitude and frequency of acoustic signal impulse increase as well.The process of insulator contaminant flashover can be reflected factually by the acoustic signals generated.The discharge tendency and its harm to the electiric power system can be judged by inspecting the acoustic signals. |
| Key words: acoustic emission,insulator,contaminant flashover,monitoring, |
