消弧线圈接地系统采用中电阻选线的原理及应用

Principle of line selection for arc depression coil grounding systemusing medium resistance and its application

分析了中性点经自动调谐消弧线圈接地系统的单相接地故障特点及现在普遍采用的接地选线方式,提出了中性点经自动调谐消弧线圈接地系统在单相接地故障时瞬时投入并联电阻选线的新方法,并在实际运行中获得良好的效果。

The features of single-phase grounding fault in the automatic tuning arc depression coil grounding system and the commonly adopted line selection method for grounding system were analyzed. A new method of putting medium resistance to select the fault line instantaneously when the single-phase fault occurs in the automatic tuning arc depression coil grounding system was put forward. The method was proved good in actual operation.