Through deduction and analysis, the conclusion can be made: low reactance at the neutral point 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
This paper collects and analyzes the harmonic signals of the CO2 welding machines main transformer, by which researches the effect of welding power source on the main.
In common hard switching circuit, high voltage spike usually could be produced during switch transition process because of the effect of transformer leakage inductance and parasitic capacitor.