以三峡水轮发电机为例，阐述了大型水轮发电机中性点经消弧线圈接地的必要性。
Taking the hydro-generator for the Three Gorges power plant as an example, this paper expounds it is very necessary for large_capacity hydro-generator to adopt arc-extinguishing coil grounding.
发电机中性点运行方式有中性点不接地、小阻抗接地、高阻抗接地、消弧线圈接地。
Generator neutral ground methods include non-ground, low impedance ground, high impedance ground and arc-suppression coil ground.
目前对大容量发电机中性点接地方式有两种不同观点，即中性点经配电变高阻接地和经消弧线圈谐振接地。
Two different viewpoints about neutral ground way of large-capacity generators at present, neutral grounding by distribution transformer or resonant.
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