春融季节对地铁直流单轨条50Hz相敏轨道电路的影响分析  

Analysis of influence of spring melting season on 50Hz phase sensitive track circuit of metro DC monorail

作　　者：杨小亮 YANG Xiaoliang(Changchun Rail Transit Group Co.,Ltd.,Changchun 130000,China)

机构地区：[1]长春市轨道交通集团有限公司,吉林长春130000

出　　处：《中国高新科技》2024年第1期129-131,共3页

摘　　要：地铁直流单轨条50Hz相敏轨道电路的主要作用是检查列车占用及出清,该轨道电路与地铁工务本门共用钢轨,与牵引供电系统有牵引回流的关联。其中,地铁线路主要采用1500V直流牵引,轨道电路既是牵引回流的路径,也是信号电路的传输媒介。与此同时,春季受到温度升高、冰雪融化的影响尤为明显。文章基于该轨道电路与其他设备的关联性,重点对春融季节红光带问题进行分析并提出应对策略。The main function of the 50Hz phase sensitive track circuit of metro DC monorail is to check train occupancy and clearance.The track circuit shares the rail with the main gate of metro works,and is associated with the traction power supply system.Among them,the subway line mainly adopts 1500V DC traction,and the track circuit is not only the path of traction backflow,but also the transmission medium of the signal circuit.At the same time,the influence of rising temperature and melting ice and snow is particularly obvious in spring.Based on the correlation between the track circuit and other equipment,this paper will focus on analyzing the red light belt problem in spring melting season and propose countermeasures.

关 键 词：直流单轨条50Hz相敏轨道电路 钢轨绝缘 弹条扣件 回流线 

分 类 号：U284[交通运输工程—交通信息工程及控制]