Analysis and Optimization Measures for Rail Traction Current Return of Beijing-Tianjin Block Post
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.
Beijing-Tianjin block posttraction current returnchoke transformerhorizontal connectiondouble-slip turnout
万方数据
维普
