Through deduction and analysis, the conclusion can be made: low reactance at the neutralpoint of transformer has little effect on the switching over-voltage in power systems.
通过计算和分析表明：变压器中性点接入小电抗对系统的操作过电压基本不会产生影响。
2
In this paper a connection scheme is proposed of which a neutralpoint is drawned from the balance transformer, and its electromagnetism principle is also analysed.
本文提出了这种变压器引出中性点的接线方案，并分析了其电磁变换的基本原理。
3
Working principle and application features of anti-arc coil in transformerneutral-point earthing mode are introduced, which provides safety running for electricity supply system.