摘要
站联电缆是铁路两个站间电气联锁信息的重要通道,需要在轨旁电缆沟中长距离敷设,在实际运行中,站联电缆芯线上会产生较大的对地电压,当该电压过大时,会引起站联电路防雷模块动作甚至损毁。结合两个站联电路防雷模块故障案例,分析站联电缆芯线对地电压波动的成因,利用ANSYSElectromagnetics场路耦合仿真软件分析芯线感应电压的影响因素,仿真结果表明站联电缆芯线感应电压与电流大小、线间距、电流方向等因素有关。
The liaison cables between stations serve as an important channel for electrical interlocking information between two railway stations and need to be laid over a long distance in a trackside cable trench.In actual operation,the core wires of the liaison cables generate high voltage to earth.When the voltage is too high,it can cause the lightning protection module of the liaison circuits between stations to operate or even become damaged.This article discusses two cases of lightning protection module faults in liaison circuits between stations to analyze the causes of voltage fl uctuations to earth in the liaison cable cores.The ANSYS Electromagnetics fi eld-circuit coupling simulation software is used to analyze the factors infl uencing the induced voltage of the cable cores.The simulation results show that the induced voltage of the liaison cable cores is related to factors such as the magnitude of the current and voltage,wire spacing,and current direction.
出处
《铁路通信信号工程技术》
2024年第S1期17-20,共4页
Railway Signalling & Communication Engineering
关键词
站联电路
感应电压
站联电缆
叠加原理
liaison circuit between stations
induced voltage
liaison cable between stations
overlay principle
