京张高铁AT供电方式下的短路故障分析

对京张高铁短路故障案例进行梳理,主要包括短路故障数据、发生在不同区段网孔电流的分析以及供电臂保护的原理、应用。基于对接触网不同区段短路故障电压、电流的分析计算,结合所内装置故障报告能更好地完成短路故障分析、确认,为分析跳闸原因及故障定位提供技术支持。

The short-circuit fault cases of Beijing-Zhangjiakou high-speed railway are analyzed,including short-circuit fault data,fault location method,analysis of mesh current in different sections and the principle and application of power supply arm protection.Based on the understanding of the voltage and current of the short-circuit fault in different sections of the catenary,the analysis and confirmation of the short-circuit fault can be completed better by combining the fault report of the internal devices,and are able to provide technical support for analyzing the cause and location of tripping.