铁路通信信号工程技术2024，Vol.21Issue(7)：13-19,7.DOI:10.3969/j.issn.1673-4440.2024.07.003
牵引回流通道不畅案例及解决方案研究
Research on Cases and Solutions of Traction Return Channel Impediment
徐华沙1
作者信息
- 1. 中国国家铁路集团有限公司成都安全监督管理特派员办事处,成都 600081
- 折叠
摘要
Abstract
The poor traction return channel will lead to track circuit power frequency and harmonic interference,track insulation burning,bring harm to the safety of train operation.This paper focus on three typical cases of power frequency interference and insulation burning accident on site,analyzes through centralized monitoring voltage curve fluctuation and dynamic detection of power frequency interference curve,and conducts on-site inspection and testing of abnormal positions.It is found that the unreasonable setting of return channel in the station and the improper connection mode of the section boosting cable will cause the obstruction of traction return channel.Combined with the actual scene and engineering experience,three different solutions for the single line semi-automatic block station,double line sections and EMU operation semi-automatic block section are proposed.The solution can greatly reduce the emergency braking problems caused by excessive power frequency interference,insulation burning and harmonic interference,so as to ensure the safety of train operation.关键词
工频干扰/绝缘烧损/回流通道/列车运行安全Key words
power frequency interference/track insulation burning/return channel/safety of train operation分类
交通工程引用本文复制引用
徐华沙..牵引回流通道不畅案例及解决方案研究[J].铁路通信信号工程技术,2024,21(7):13-19,7.
