[1]洪书文,潘子仁,李 悦,等.不同形状输电杆塔接地装置的研究[J].电瓷避雷器,2020,(01):118-122.[doi:10.16188/j.isa.1003-8337.2020.01.020]
 HONG Shuwen,PAN Ziren,LI Yue,et al.Research on Different Shapes of Grounding Devices for Transmission Towers[J].,2020,(01):118-122.[doi:10.16188/j.isa.1003-8337.2020.01.020]
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不同形状输电杆塔接地装置的研究()
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《电瓷避雷器》[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2020年01期
页码:
118-122
栏目:
避雷器
出版日期:
2020-02-20

文章信息/Info

Title:
Research on Different Shapes of Grounding Devices for Transmission Towers
作者:
洪书文 潘子仁 李 悦 毛兴华 周 威
(长沙理工大学电气与信息工程学院, 长沙 410114)
Author(s):
HONG Shuwen PAN Ziren LI Yue MAO Xinghua ZHOU Wei
(School of Electrical and Information Engineering,Changsha University of Science and Technology, Changsha 410114, China)
关键词:
接地装置形状 接地电阻 散流分布:跨步电压分布
Keywords:
grounding device shape grounding resistance scattered distribution step voltage distribution
DOI:
10.16188/j.isa.1003-8337.2020.01.020
摘要:
输电杆塔接地装置形状的不同会引起其接地电阻、散流分布与跨步电压分布的不同,对人身安全产生影响。分别对四种不同形状的接地装置:方框型、圆环型、方框带四条斜射线型与方框带四角树枝状放射线型进行理论与仿真分析,比较五种接地装置接地电阻的大小、散流分布与跨步电压分布。得出冲击接地电阻:Rch(分叉型)<Rch(射线型)<Rch(圆环型)<Rch(方框型),地电位最高且下降梯度最陡峭的区域与最大跨步电压分布在接地装置的边框及边框顶点、射线及射线分叉顶点和边框与接地引下线连接点的周围。
Abstract:
Different types of grounding devices for transmission towers can cause three main factors affecting the safety of grounding devices: grounding resistance, distribution of dispersion and distribution of step voltages, and four different shapes of grounding devices: box type, round The theoretical and simulating analysis of the ring-type, box-shaped four-segment ray-type and box-shaped quadrangular horn-shaped radiation patterns were carried out to compare the magnitude of the grounding resistance, the distribution of the scattered flow and the step voltage distribution of the five grounding devices. The impact grounding resistance is obtained: Rch(bifurcation type)<Rch(radial type)<Rch(circular type)<Rch(box type), the region with the highest ground potential and the steepest descending gradient and the largest step voltage are distributed around the borders and border vertices of the grounding device, the ray and radiation bifurcation vertices, and the borders of the borders and the ground downlead connection.

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备注/Memo

备注/Memo:
收稿日期:2018-05-05作者简介:洪书文(1994—),女,硕士,研究方向:高电压与防雷接地保护。
更新日期/Last Update: 2020-02-20