This paper surveys the situation of existing rail traction current return of Beijing-Tianjin Block Post on Beijing-Shanghai High-Speed Railway,and analyzes the requirements and constraints of signaling and traction power supply related standards,specifications and products on rail traction current return.On this basis,it studies the factors that need to be considered for rail traction current return,and proposes the measures of minimizing current return breakpoints,shortening current return channels,and adding grounding wires and boosting cables on the basis of two conditions,i.e.,ensuring smooth current return channels and avoiding the formation of a"third rail"that affects track circuit safety.In view of the actual situation of Beijing-Tianjin Block Post,it presents two schemes,i.e.,connection through double-slip turnouts for current return and connection through horizontal connections for current return.After in-depth analysis and comparison,it finally proposes that direct connection on both sides of insulation for rail traction current return should be prioritized for railway block posts.
关键词
京津线路所/牵引回流/扼流变压器/横向连接/双动道岔
Key words
Beijing-Tianjin block post/traction current return/choke transformer/horizontal connection/double-slip turnout
维普
万方数据