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全是铁路运输的生命线,为了使列车运行直接与信号设备发生关系,通常是把钢轨作为信号传输线。随着我国铁路的提速,轨道信号检测系统面临着极大的考验。在电气化铁路区段,两条钢轨是移频信号的传输线又是机车牵引电流的回流线。工频牵引电流会对移频信号带来极大的干扰。定期检测轨道电路的电压、频率等参数,以判断轨道电路及其信号设备是否处于最佳工作状态,可以及时消除隐患,确保铁路安全行车。
All are the lifelines of railway transportation. In order to make the train operate directly with the signal equipment, the rail is usually used as a signal transmission line. As China’s railway speed, orbit signal detection system is facing great challenges. In the electrified railway section, the two rails are the transmission line of the frequency shift signal and the return line of locomotive traction current. Power frequency traction current will bring great interference to the frequency shift signal. Regularly detect the track circuit voltage, frequency and other parameters to determine whether the track circuit and its signal equipment is in the best working condition, you can eliminate hidden dangers in time to ensure the safe driving of the railway.