自动重合闸的不同重合闸时间影响电力系统暂态稳定性，使得它的最佳重合时刻的捕获一直受到关注。
Different reclosing times of automatic reclosing affect power system transient stability, so the capturing of optimal reclosing time is always followed with interest.
瞬时故障时在最佳重合时刻分相重合，永久故障时闭锁重合闸。
Further more, the switches reclose at optimal reclosing time by phase for instantaneous fault and shut down reclosure for permanent fault.
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