【简答题】
AC380V/DC600V兼容供电客车综合柜Q1、Q2（Q3、Q4）跳闸如果无短路情况下怎样排查处理?(1.0
分)
查看试卷，进入试卷练习
微信扫一扫，开始刷题
如果没有短路，则有可能是车下电源箱预充电电路失效（3分），断开Q39（1分），其他负载恢复
供电（1分）。
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