| 基于SF6成分分析的气体绝缘金属封闭开关设备潜伏性缺陷判断的研究及应用 |
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| 引用本文： | 郑晓光,陈俊,王宇,姚唯健,李丽,周文俊.基于SF6成分分析的气体绝缘金属封闭开关设备潜伏性缺陷判断的研究及应用[J].广东电力,2012(1):30-35. |
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| 作者姓名： | 郑晓光 陈俊 王宇 姚唯健 李丽 周文俊 |
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| 作者单位： | [1]广东电网公司电力科学研究院,广东广州510080 [2]武汉大学电气工程学院,湖北武汉430072 |
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| 基金项目： | 中国一苏格兰博士生教育及科研基金（留金欧[2010]6044） |
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| 摘 要： | 长期运行下气体绝缘金属封闭开关设备(gas insulated switchgear,GIS)的潜伏性缺陷会引致放电,最终可能引起绝缘崩溃。为了探索一种基于SF6成分分析的有效判断GIS放电状态的方法,在110 kV母线段内进行放电试验,检测分析不同放电类型下分解气体的体积分数变化规律,提出使用CS2,SO2F2和SO2作为GIS潜伏性缺陷的特征气体,它们的增长速率可用于判断GIS绝缘的状况。在此基础上,给出了GIS潜伏性缺陷的判断流程,其有效性得到了实际验证。
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| 关 键 词： | 气体绝缘金属封闭开关设备 绝缘监测 SF6成分分析 |
Research on Judgement of Hidden Defects of GIS Based on Composition Analysis of SF6 and Its Application |
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| ZHENG Xiaoguang,CHEN Jun,WANG Yu,YAO Weijian,LI Li,ZHOU Wenjun.Research on Judgement of Hidden Defects of GIS Based on Composition Analysis of SF6 and Its Application[J].Guangdong Electric Power,2012(1):30-35. |
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| Authors: | ZHENG Xiaoguang CHEN Jun WANG Yu YAO Weijian LI Li ZHOU Wenjun |
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| Affiliation: | 1. Electric Power Research Institute of Guangdong Power Grid Corp., Guangzhou, Guangdong 510080, China; 2. School of Electrical Engineering, Wuhan University, Wuhan, Hubei 430072, China) |
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| Abstract: | Hidden defects of gas insulated switchgear （GIS） after long operation may cause discharge and ultimately results in breakdown of insulation. In order to explore a effective method for determining GIS discharge based on composition analysis of SF, a discharge test in 1 I0 kV bus section is carried on. Change rules of volume fraction of decomposited gas in different discharge types are checked. The paper proposes to take CS2, SO2 F2 and SOz as characteristic gas of hidden defects of GIS and the growth rate can be criterion for insulation of GIS. On the basis of the above, the paper introduces procedures for judging hidden defects of GIS and the effectiveness is practically verified. |
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| Keywords: | GIS insulation monitoring composition analysis of SF |
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