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110kV变压器差动保护工作原理

更新时间: 2021-01-20 01:36:48     

1、110kV变压器差动保护工作原理如下:

2、将元件两端电流互感器按差接法连接,正常运行或外部故障时,流入继电器的电流为两侧电流差,接近零;内部故障时,流入继电器的电流为两侧电流和,其值为短路电流,继电器动作。将此原理应用于变压器,即为变压器差动保护。

关键词: 110kv 变压器 保护 工作 原理

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