摘要
对国内电力系统大型发电机组中性点采用2种不同接地方式以及不同讨论观点进行了详细介绍。结合具体工程实例对接地电阻选取原则、不同接地方式下发电机定子单相接地电流比较、对发电机定子铁芯的危害以及定子单相接地保护等方面展开分析和讨论,并提出一些建议。
The paper introduces 2 different ground modes used for domestic large generation unit neutral points and different view points in details. It also analyzes and discusses about ground resistance selecting principles, comparison of generator stator single-phase ground current under different grounding modes, stator core harmfulness, and stator single-phase ground protection in combination with concrete projects, and gives out some comments.
出处
《电力建设》
2009年第12期58-60,64,共4页
Electric Power Construction
关键词
大型发电机
中性点
接地方式
接地电流
探讨
large generator
neutral point
grounding mode
ground current
inquisition