The open-phase protection in long-distance motor operation is very important in practice.
电动机远距离运行断相保护在实际工作中很重要。
Only in each column over-voltage protector installed on each phase can get good protection effect.
只有在每柱每相上安装过电压保护器才能得到好的保护效果。
Phase comparison protection where the comparison is made twice per cycle.
每周期比较两次的相位比较保护。对正半周和负半周各比较一次。
三相马达保护。
The shortage of traditional single-phase ground fault protection principle is pointed out.
指出传统的接地保护原理的不足。
The shortage of traditional single-phase ground fault protection principle is pointed out.
指出传统的接地保护原理的不足。
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