| 喷射气体灭弧防雷间隙装置的研制 |
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| 引用本文： | 王巨丰,陆俊杰,陈宙平,陈智勇,罗磊,林盛强.喷射气体灭弧防雷间隙装置的研制[J].高电压技术,2009,35(8):1874-1878. |
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| 作者姓名： | 王巨丰 陆俊杰 陈宙平 陈智勇 罗磊 林盛强 |
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| 作者单位： | 广西大学电气工程学院,南宁,530004 |
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| 基金项目： | 国家自然科学基金(50867002)~~ |
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| 摘 要： | 为解决35kV架空输电线路的雷击问题,借鉴并联间隙防雷保护原理的"疏导型"思想,研制了喷射气体灭弧防雷间隙装置。该装置能够在输电线路遭受雷击或绝缘子串工频闪络时,有效保护绝缘子串免受工频电弧的灼烧,同时在工频电弧击穿间隙后,能够迅速切断工频续流。借助高速摄像机及示波器观测电弧及间隙电压、电流的变化过程,实验结果表明在高速气体的冲击下,间隙电弧能够快速熄灭。计算显示,安装喷射气体灭弧防雷间隙装置以后,能够大幅度降低输电线路的雷击跳闸率。为进一步把该装置运用到110、220kV高压输电线路打下了基础。
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| 关 键 词： | 防雷保护 架空线路 间隙 绝缘子 电弧 跳闸率 |
Development of Parallel Gap Lightning Protection Device with Arc Extinguished by High-speed Airflow |
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| WANG Ju-feng
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LU Jun-jie
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CHEN Zhou-ping
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CHEN Zhi-yong
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LUO Lei
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LIN Sheng-qiang.Development of Parallel Gap Lightning Protection Device with Arc Extinguished by High-speed Airflow[J].High Voltage Engineering,2009,35(8):1874-1878. |
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| Authors: | WANG Ju-feng LU Jun-jie CHEN Zhou-ping CHEN Zhi-yong LUO Lei LIN Sheng-qiang |
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| Affiliation: | College of Electrical Engineering;Guangxi University;Nanning 530004;China |
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| Abstract: | A parallel gap lightning protection device with arc extinguished by high-speed airflow was developed from the principle of parallel gap lightning protection to solve the faults caused by lightning stroke in 35 kV overhead transmission lines. And it was feasible to adopt scatter type gap lightning protection scheme. The scheme can provide better lightning protection for overhead transmission lines. Such device was installed on overhead transmission lines to protect insulator strings against burnt by power fr... |
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| Keywords: | lightning protection overhead lines gap insulator electric arc flashover rate |
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