摘要
CRH3C型动车组在雾霾天气下极易发生高压外绝缘闪络问题,致使动车组自动降弓。后续应急处置过程中,如对故障原因及故障点判断不准确,极易造成接触网二次跳闸,扩大事故影响。结合CRH3C动车组电路原理图对真空断路器闪络问题进行分析,并提出预防及改进措施,为CRH3C动车组的持续、安全、可靠运营提供保障。
For CRH3C,flashover may be easily happened in the fog and haze weather,which can cause the automatic dropping of the pantograph.In the following emergency disposal,if the problem and the accident point can't be judged correctly,it will cause contact net secondary trip and expand the impact of the accident.This article will analyze the flashover problem of high-voltage system according to CRH3C-EMU circuit diagram.Moreover,it will put forward the prevention and improvement measures to provide continuous and reliable security for operations of CRH3C-EMU.
作者
张远东
谷孝坤
ZHANG Yuandong;GU Xiaokun(Beijing EMU Dopot,China Railway Beijing Bureau Group Co.,Ltd.,Beijing 102600,China)
出处
《铁道机车车辆》
北大核心
2019年第6期83-85,共3页
Railway Locomotive & Car
