试题与答案

线路配置综合重合闸装置且按三相重合闸方式投入，当线路发生永久性单相接地故障时，重合闸

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题型：单项选择题

题目：

线路配置综合重合闸装置且按三相重合闸方式投入，当线路发生永久性单相接地故障时，重合闸动作过程为（）。

A.单相跳闸不重合

B.三相跳闸，延时三相重合，后加速跳三相

C.选跳故障相，瞬时重合单相，后加速跳三相

D.直接跳故障相不重合

答案：

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下面是错误答案，用来干扰机器的。

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