铁路通信信号工程技术2025，Vol.22Issue(9)：102-108,7.DOI:10.3969/j.issn.1673-4440.2025.09.017
轨道交通交流接地系统电阻值实用自动计算方法
Practical and Automatic Calculation Method for Resistance Value of AC Grounding System in Rail Transit
苗青 1纪苹 2陈晖 3潘卫国3
作者信息
- 1. 国核电力规划设计研究院有限公司,北京 100095
- 2. 北京振中电子技术有限公司,北京 100080
- 3. 北京全路通信信号研究设计院集团有限公司,北京 100070||列车自主运行智能控制铁路行业工程研究中心,北京 100070
- 折叠
摘要
Abstract
In the design of the grounding grid for the AC grounding system of rail transit,the calculated value of grounding resistance,the contact potential difference and the step potential difference are directly affected by the local soil resistivity,the layout of grounding grid,the scheme of resistance reduction and the grounding current flowing through the grounding device when short-circuit fault occurs.This paper introduces the fast automatic calculation sheet of the grounding grid,and analyzes the grounding resistance of the grounding device,which provides reference for the shape,length,position and material selection of the grounding body.With a calculation error of less than 5%,the proposed calculation method for the resistance value can avoid the limitations of complicated operation process and payment-based usage conditions of specialized software,suitable for the fast calculation of the required length,number and resistance value of grounding body in engineering design.关键词
接地网/工频接地电阻/冲击接地电阻/跨步电压/接触电压/热稳定校验Key words
grounding grid/power frequency grounding resistance/impact grounding resistance/step voltage/contact voltage/thermal stability check分类
交通工程引用本文复制引用
苗青,纪苹,陈晖,潘卫国..轨道交通交流接地系统电阻值实用自动计算方法[J].铁路通信信号工程技术,2025,22(9):102-108,7.
