摘要
通过对比走行轨回流和专用轨回流两种制式牵引供电系统,阐述了专用轨回流系统能彻底消除杂散电流危害的原因,并分析了采用专用轨回流系统对供变电系统在牵引变电所分布、直流牵引供电系统继电保护、综合接地系统和杂散电流腐蚀防护系统等方面的影响,最后进行走行轨回流和专用轨回流两种制式供变电系统工程数量及投资的对比分析。
By comparing traction supply systems adopting different current backflow modes,i.e.,backflow through running rail and exclusive rail,this paper describes factors contributing to complete elimination of stray current by backflow through exclusive rail,analyzes the impact of exclusive backflow rail on distribution of traction substations,relay protection of DC traction mechanism,integrated grounding system and stray current corrosion protection in electric supply and transformation.It finallycompares construction quantity and investment between supply and transformation systems with backflow through running rail and exclusive rail.
作者
芦思为
LU Siwei(China Railway Siyuan Survey and Design Group Co.,Ltd.,Wuhan 430063,China)
出处
《电工技术》
2024年第2期192-194,共3页
Electric Engineering
关键词
走行轨回流
专用轨回流
杂散电流
供变电系统
backflow through running rail
backflow through exclusive rail
stray current
supply and transformation system
