25Hz相敏轨道电路原理与故障分析  

Study on the Working Principle and Fault of 25Hz Phase Detecting Track Circuit

作　　者：赵宁[1] Zhao Ning(Railway Communication and Signal College of Liuzhou Railway Vocational Technical College,Liuzhou 545616)

机构地区：[1]柳州铁道职业技术学院铁道通信信号学院,广西柳州545616

出　　处：《中阿科技论坛(中英文)》2025年第4期98-102,共5页China-Arab States Science and Technology Forum

基　　金：2023年柳州铁道职业技术学院科研项目“基于深度学习的25 Hz相敏轨道电路故障诊断系统研究”(2023-KJA04)。

摘　　要：25Hz相敏轨道电路是铁路信号系统的关键设备,且轨道电路长期连续工作,工作环境复杂恶劣,故障频发,轻则影响运行效率,重则危及行车安全。文章从电路结构、相位敏感特性及信号传输机制等方面详细地阐述了25Hz相敏轨道电路的工作原理,在此基础上,深入地分析了该轨道电路的常见故障类型及其成因,如短路、断路、绝缘不良、干扰等,并针对不同类型故障提出了相应的处理方法和预防措施。通过对故障原因的系统分析和处理方法的优化,文章旨在提高25Hz相敏轨道电路的可靠性与稳定性,为铁路信号系统的安全运行提供理论支持和技术保障,确保列车运行的安全性与高效性。As a key component of railway signal system,25Hz phase detecting track circuit is prone to faults due to its long working hours and complex and harsh working environment,which exerts adverse effect on operation efficiency and even jeopardize train safety.In view of this,the article elaborates on its working principle from the aspects of circuit structure,phase-sensitivity characteristics and signal transmission mechanism,analyzes the common faults and their causes,such as short circuits,open circuits,poor insulation,interference,and finally proposes corresponding solutions and preventive measures for different types of faults.Through these efforts,we aim to enhance the stability of 25Hz phase detecting track circuits,provide theoretical basis and technical support for the safe operation of railway signal systems,and ensure the safety and efficiency of train operation.

关 键 词：25HZ相敏轨道电路 轨道电路工作原理 故障分析 预防措施 

分 类 号：U282[交通运输工程—交通信息工程及控制]