摘要
国内对大型发电机中性点接地方式有2种不同的主张,即中性点经消弧线圈接地和经配电变压器高阻(或中阻)接地。分析认为大型发电机中性点应采用经消弧线圈接地方式,并对这2种中性点接地方式下实施三次谐波电压型定子接地保护的判据进行了简要分析。
Two different opinions about neutral ground way of large generator are existed at home,neutral grounding by reactor or distribution transformer. The way of large generator neutral grounding by reactor is agreed in this article. The criterion of triple harmonic stator winding ground protection in this two way are simply discussed.
