| 电极布置对杆塔冲击接地电阻的影响 |
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| 引用本文： | 汪祥兵,陈俊武,李藻乡. 电极布置对杆塔冲击接地电阻的影响[J]. 湖北电力, 2003, 27(2): 26-27 |
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| 作者姓名： | 汪祥兵 陈俊武 李藻乡 |
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| 作者单位： | 华中科技大学,湖北武汉,430074;湖南省怀化电业局,湖南怀化,418000 |
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| 摘 要： | 输电线路杆塔接地网的冲击特性决定了雷击情况下的过电压保护设计，改善杆塔地网的冲击特性一直是倍受关注的问题。根据冲击条件下地中散流特性的分析，提出了几种新的接地网电板布置方式，并对其冲击接地电阻进行了实际测量。通过实验与传统电板布置方式测量结果的对比，证明新的电板布置具有更低的冲击接地电阻，并互筛选出适合杆塔使用的电板布置方式。
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| 关 键 词： | 冲击接地电阻 输电线路 杆塔 电极布置 |
| 文章编号： | 1006-3986(2003)02-0026-02 |
| 修稿时间： | 2003-01-19 |
Influence of Electrode Arrangement on Impulsive Ground Resistance of Tower |
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| WANG Xiang-bing,CHEN Jun-wu,LI Zao-xiangHuazhong Science and Technology University,Wuhan ,China, Hunan Huaihua Electric Power Supply Bureau,Huaihua ,China. Influence of Electrode Arrangement on Impulsive Ground Resistance of Tower[J]. Hubei Electric Power, 2003, 27(2): 26-27 |
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| Authors: | WANG Xiang-bing CHEN Jun-wu LI Zao-xiangHuazhong Science Technology University Wuhan China Hunan Huaihua Electric Power Supply Bureau Huaihua China |
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| Affiliation: | WANG Xiang-bing,CHEN Jun-wu,LI Zao-xiangHuazhong Science and Technology University,Wuhan 430074,China, Hunan Huaihua Electric Power Supply Bureau,Huaihua 418000,China |
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| Abstract: | It is a determined factor on the over voltage protection design for the impulse characteristics of the ground grid of transmission line towers. It attracts a lot of attention to improve the impulse characteristics of the ground grid. By analyzing the current diffusion features in ground grid in impulse case, some new types of ground grid electrode arrangement of transmission tower are proposed. The impulse ground resistance of these ground grids has been measured. By comparing with the measurements of the traditional structure, it is proved that the proposed new ground grid has lower ground resistance. A most suited ground grid with best impulse characteristics is concluded from experimental results. |
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| Keywords: | impulsive ground resistance transmission line tower electrode arrangement |
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