[1]谭韬,肖荣贵,敬亮兵,等.湘西110 kV变电站雷击现场事故研究[J].电瓷避雷器,2018,(01):20-24.[doi:10.16188/j.isa.1003-8337.2018.01.004]
 TAN Tao,XIAO Ronggui,JING Liangbing,et al.Research on Lightning Strike Accident in Xiangxi 110 kV Substation[J].,2018,(01):20-24.[doi:10.16188/j.isa.1003-8337.2018.01.004]
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湘西110 kV变电站雷击现场事故研究
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《电瓷避雷器》[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2018年01期
页码:
20-24
栏目:
避雷器
出版日期:
2018-02-10

文章信息/Info

Title:
Research on Lightning Strike Accident in Xiangxi 110 kV Substation
作者:
谭韬1肖荣贵1敬亮兵1扈海泽2金杰2黎铭2谭恩典2钟坤2潘太坤2肖星2
1国网娄底供电公司,湖南 娄底 417000,2 吉首大学信息科学与工程学院,湖南 湘西 416000
Author(s):
TAN Tao1XIAO Ronggui1JING Liangbing1HU Haize2JIN Jie2LI Ming2TAN Endian2ZHONG Kun2PAN Taikun2XIAO Xing2
1.State Grid Loudi power supply company,Loudi 417000,China; 2.Mathematics and Computer Science Department of Jishou University,Xiangxi 416000,China
关键词:
变电站 引下线 避雷器 圆型接地网 ATP-EMTP
Keywords:
substation down lead wire arrester circular grounding grid ATP-EMTP
DOI:
10.16188/j.isa.1003-8337.2018.01.004
文献标志码:
A
摘要:
针对湘西某110kV变电站雷击事故事例进行现场研究和分析,确定事故是由于引下线跨距大、缺少避雷器以及接地扁钢腐蚀,从而使得龙门架残压过高,导致反击设备的发生。根据防雷接地相关理论知识及工程实践经验,提出引接线安装避雷器、更换接地扁钢、铺设垂直接地体以及辅助圆形接地网等改造方法。同时采用电磁暂态仿真软件ATP-EMTP对加装避雷器限制过电压幅值以及圆形辅助接地网降阻效果进行仿真验证,仿真结果表明该改造措施能有效的降低过电压幅值及接地电阻值。对该雷击事故现场分析和研究,不仅提高了该变电站的供电可靠性,同时能够为其它变电站的建设及防雷改造提供实际施工意义。
Abstract:
Aiming at the accident investigation and analysis of a 110 kV substation in Xiangxi, the cause of the accident is due to the large span of the down lead wire, the lack of arrester and the corrosion of the ground flat steel, which makes the residual pressure too high, leading to the occurrence of counterattack. According to the relevant theoretical knowledge and engineering practice experience of lightning protection, it is proposed to install lightning arrester, replace the grounding flat steel, lay the vertical grounding body and auxiliary circular grounding grid and other transformation methods. At the same time, using the electromagnetic transient simulation software ATP-EMTP to simulate the overvoltage amplitude of the arrester and the reduction effect of the circular auxiliary grounding grid,the simulation results show that the retrofitting measures can effectively reduce the overvoltage amplitude and the grounding resistance value. The analysis and research of the lightning accident site not only improve the power supply reliability of the substation, but also can provide practical construction significance for the construction of other substation and the lightning protection transformation.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2017-04-08 作者简介:谭 涛(1984—),男,硕士,工程师,研究方向为电力系统过电压,电力系统生产。 基金项目:国家自然科学基金资助项目(编号:61561022)。
更新日期/Last Update: 2018-02-10