CR400BF、CR300BF平台动车组22CBCKE型主断路器接地触头放电烧损问题的分析及对策  

Analysis and Countermeasures for Main Circuit Breaker Ground Contact Discharge Burn Issue of CR400BF, CR300BF Platform EMU

作　　者：杨四海 YANG Sihai(Shanghai EMU Depot,Shanghai 201803,China)

机构地区：[1]上海动车段,上海201803

出　　处：《铁道机车车辆》2022年第2期122-129,共8页Railway Locomotive & Car

摘　　要：CR400BF、CR300BF平台动车组22CBCKE型主断路器接地触头放电烧损故障,严重影响途中运行秩序,同时存在一定的火灾隐患。文中从故障现象、控制原理、现车调查、地面调查、高压箱结构、设计技术条件等方面入手,进行相关试验的比较分析,查找故障发生的根源所在,制定相应的对策。Main circuit breaker grounding-contact discharge burnout problem of CR400BF, CR300BF platform EMU failure leads to automatic pantograph lowering for the EMU, seriously affects the routine operation order and exists certain fire hazard. In this paper,starting from the failure phenomenon, control principle, current vehicle investigation, ground investigation, high-voltage box structure,design technical conditions, etc., the comparative analysis of relevant tests is performed to find the root cause of the failure and develop corresponding countermeasures.

关 键 词：CR400BF动车组 CR300BF动车组 22CBCKE型主断路器 放电分析 对策 

分 类 号：U269.6[机械工程—车辆工程]