| 气压对绝缘子串直流污闪特性影响 |
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| 引用本文： | 张志劲,蒋兴良,孙才新,胡建林,舒立春,毛峰.气压对绝缘子串直流污闪特性影响[J].电工技术学报,2010(5). |
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| 作者姓名： | 张志劲 蒋兴良 孙才新 胡建林 舒立春 毛峰 |
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| 作者单位： | 重庆大学输配电装备及系统安全与新技术国家重点实验室; |
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| 基金项目： | 国家重点基础研究发展计划(973项目)(2009CB724503); 重庆大学青年骨干教师创新能力培育基金资助项目 |
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| 摘 要： | 低气压下污秽绝缘子的电气性能相对清洁绝缘子将降低,但气压对绝缘子串直流污闪特性的影响,目前仍缺乏系统的研究。本文对7片串XP—160盘形悬式绝缘子和特高压复合绝缘子短样的直流污闪特性进行了研究,分析表明绝缘子串直流污闪放电过程中局部电弧的特性决定气压影响特征指数n,不同型式绝缘子串n值存在差异的原因是放电过程中局部电弧飘弧造成的。
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| 关 键 词： | 气压 直流 绝缘子串 污闪特性 |
Influence of Air Pressure on DC Pollution Flashover Performance of Insulator String |
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| Zhang Zhijin Jiang Xingliang Sun Caixin Hu Jianlin Shu Lichun Mao Feng.Influence of Air Pressure on DC Pollution Flashover Performance of Insulator String[J].Transactions of China Electrotechnical Society,2010(5). |
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| Authors: | Zhang Zhijin Jiang Xingliang Sun Caixin Hu Jianlin Shu Lichun Mao Feng |
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| Affiliation: | Zhang Zhijin Jiang Xingliang Sun Caixin Hu Jianlin Shu Lichun Mao Feng (State Key Laboratory of Power Transmission Equipment and System Security and New Technology Chongqing University Chongqing 400044 China) |
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| Abstract: | The electrical performance of polluted insulator string may reduce under low air pressure,whereas no reasonable answer about how air presssure effects on DC pollution flashover performance of insulator string is put forward by now.The paper experimental researches on the DC pollution flashover characteristics of seven units of XP-160 and short sample of compostie insulator to be used in UHV transmission lines.It is shown that the exponent n describing the air pressure influence on DC pollution flashover vol... |
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| Keywords: | Air pressure DC insulator string pollution flashover performance |
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