断路器二次回路隐患的分析与查找
Rural Electrification(2019)
Abstract
描述了一起220 kV变电站线路因雷击造成B相瞬时故障而站内开关跳闸后重合失败的事件,经初步分析该断路器二次回路设计不合理,弹簧储能继电器异常时监控后台却无异常告警信号,由此引发对报警回路中使用常开接点还是常闭接点的讨论,并提出相应的改进措施以及建议.
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