220kV母联保护屏上没有启动失灵压板,要是母差动作后母联断路器拒动怎么办?

2025-04-06 00:24:20
推荐回答(2个)
回答1:

3.2. 5 母联失灵与母联死区保护
当保护向母联发跳令后,经整定延时母联电流仍然大于母联失灵电流定值时,母联失灵保护经两母线电压闭锁后切除两母线上所有连接元件。 通常情况下, 只有母差保护和母联充电保护才起动母联失灵保护。当投入“投母联过流起动母联失灵”控制字时,母联过流保护也可以起动母联失灵保护。
如果希望通过外部保护启动本装置的母联失灵保护,应将系统参数中的“投外部起动母联失灵”控制字置 1。装置检测到外部起动母联失灵”开入后,经整定延时母联电流仍然大于母联失灵电流定值时, 母联失灵保护经两母线电压闭锁后切除两母线上所有连接元件。该开入若保持 10S 不返回,装置报“外部起动母联失灵长期起动” ,同时退出该起动功能。

摘自南瑞RCS-915AB的说明书

回答2:

坐在公交汽

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