摘要
为了三峡发电机组的安全，在讨论其中性点接地方式上必须遵循以下原则：单相接地故障不应烧伤定子铁芯，减少暂态过电压数值，提高发电机定子绕组单相接地保护的灵敏度。作者认为，消弧线圈谐振接地方式有着较高的接地保护灵敏度。
The following principle should be adhered to on studying the ground neutral system for the safety of generating units of the Three Gorges so that the stator cores would not be burned due to any fault from a single phase ground; lessing the values of instantaneous overvoltage, increasing sensitivity of the single-phase ground protection of the stator windings of the generators. The author considers that the way of resonance ground of arc extinguish coils is of a higher sensitivity for ground protection.
出处
《中国三峡建设》
1996年第4期15-17,共3页
China Three Gorges Construction
关键词
水轮发电机组
中性点接地
定子
接地保护
Generating unit Instantaneous overvoltage Ground protection for stator
