CRH5A型动车组主断自动跳开故障分析

摘要

针对CRH5A型动车组在特定区间发生主断自动跳开故障问题,分析了故障发生时相关测点的电压和电流,找到了电压异常点,并据此查找出了故障原因.针对性采取了一系列整改措施,调整了列车在该特定区间内的升弓情况,较好地解决了故障.经整改,故障得以排除.%According to the problem of main switch automatic tripping on CRH5A train,the voltage and electricity at relevant test points are analyzed,the voltage abnormal point when the fault happens is detected,and the main reason for automatic tripping is confirmed.Then,corresponding measures are taken,such as the adjustment of the pantograph in certain sections.This research helps to solve the tripping problems and eliminate main switch faults.