架空配电线路雷击分析与防治措施  被引量:29

Lightning Stroke Analysis and Prevention Measures for Overhead Distributing Lines

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作  者:郑晖[1] 廖华武[2] 李既明[1] 邓杰文[1] 满超楠[1] 

机构地区:[1]长沙理工大学电气与信息工程学院,湖南长沙410076 [2]湖南怀化电业局,湖南怀化418000

出  处:《广东电力》2013年第1期89-92,113,共5页Guangdong Electric Power

摘  要:结合架空配电线路在实际运行中的雷害情况及典型事例,对目前架空配电线路防雷现状及存在问题进行全面分析,认为配电线路在绝缘水平、绝缘配合、防雷措施等方面存在许多问题。针对此,提出提高架空配电线路绝缘水平、安装可调式过电压保护间隙、优化中性点接地方式、在特定地点安装避雷器、拆除不合理防雷设备、对架空线路进行运行维护等关键防雷措施,以提高架空配电线路的耐雷水平及供电可靠性。This paper analyzes present lightning protection status quo and existing problems of overhead distributing lines by combining damages caused by thunder and typical examples in practical operation and it considers that there are so many problems of distributing lines in insulation level, insulation cooperation and lightning protection measures. Aiming at this, it proposes several key lightning protection measures such as improving insulation level of overhead distributing lines, installing adjustable over voltage protection gap, optimizing neutral-point grounding way, installing arrester at specified place, remo- ving unreasonable lightning protection equipments and carrying out operational maintenance for overhead lines in order to improve lightning resistance level and power supply reliability of overhead distributing lines.

关 键 词:配电线路 雷击 绝缘水平 绝缘配合 可调式过电压保护间隙 防雷措施 

分 类 号:TM863[电气工程—高电压与绝缘技术]

 

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