Impact of Grounding Conductor Corrosion on Grounding Resistance of Grounding Mesh and Improvement Method

被引：0
|
作者：
Zhou L. [1 ]
He Z. [1 ]
Chen Y. [1 ]
Liu Y. [1 ]
He J. [1 ]
Qiu Q. [1 ]
机构：
[1] School of Electric Engineering, Southwest Jiaotong University, Chengdu
来源：
Tiedao Xuebao/Journal of the China Railway Society | 2018年 / 40卷 / 02期
关键词：
Corrosion; Grounding conductor; Grounding mesh; Grounding resistance;
D O I：
10.3969/j.issn.1001-8360.2018.02.006
中图分类号：
学科分类号：
摘要：
The grounding mesh of traction substations plays a key role in the safe and stable operation of the traction power supply system. With the increase of the operation time of the grounding mesh, the characteristic parameters in excess of the standard caused by grounding conductor corrosion, are harmful to the safe and stable operation of the traction power supply system. In this paper, the CDEGS professional grounding simulation software was used to carry out the simulation calculation, to analyze the influence of grounding conductor corrosion on the grounding resistance of the grounding mesh, when the soil resistivity, grounding mesh area and grounding mesh equalizing conductor arrangement method are different. Results show that, with the decrease of soil resistivity, the degree of grounding conductor corrosion increases, resulting in greater impact on the grounding resistance. Under the same corrosion conditions, the wider the grounding mesh area, the greater the grounding resistance of the grounding mesh.Under the same grounding mesh area and steel consumption, through a reasonable choice of grounding mesh equalizing conductor arrangement method, the influence of corrosion on the grounding resistance of grounding mesh can be reduced to achieve economic and technological optimization. © 2018, Department of Journal of the China Railway Society. All right reserved.
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页码：39 / 44
页数：5
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