64, ground detector relay

接地检测继电器。在电机或其它设备对地绝缘发生故障时动作的继电器。注:本功能不适用于中性点接地的电力系统中与电流互感器二次回路连接的元件,此时可用过流元件加上后缀G 或N 表示,比如51N 代表位于电流互感器二次中性点的交流时限过流继电器。

English-Chinese electricity dictionary (电气专业词典). 2013.

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