轨道交通新型钢轨电位限制装置的研究与应用  

Research and Application of a New Type of Rail Potential Limiting Device

作　　者：殷爽[1] Yin Shuang

机构地区：[1]上海市隧道工程轨道交通设计研究院

出　　处：《隧道与轨道交通》2024年第3期57-59,76,共4页Tunnel and Rail Transit

摘　　要：轨道交通钢轨电位限制装置为成套产品,装置一端连接钢轨,另一端连接接地母排,实时监测钢轨电位。通过对现有钢轨电位限制装置工作原理及对杂散电流的影响分析,提出了基于微机控制技术及限压支路的新方案。采取优先启动限压支路策略,通过实时检测数据及逻辑判断,实现各支路的自动投入、退出,能在有效限制钢轨电位的同时,大幅度减少钢轨及接地网间的连接频率和时间,从而有效地减少杂散电流,助力轨道交通安全运营。Through the analysis of the working principle of the existing rail potential limiting device and its impact on stray currents,a new solution based on microcomputer control technology and a voltage-limiting branch is proposed.By prioritizing the activation of the voltage-limiting branch and through real-time data detection and logical judgment,the automatic engagement and disengagement of each branch can be achieved.This enables effective limitation of rail potential while significantly reducing the frequency and duration of connections between the rail and grounding grid,so as to effectively decrease stray currents and contribute to the safe operation of rail transit systems.

关 键 词：轨道交通 钢轨电位限制 杂散电流防护 

分 类 号：U231.8[交通运输工程—道路与铁道工程]