摘要
通过对具有不同原理的发电机转子一点接地保护的分析和比较,阐述了切换采样式保护和叠加方波电压式保护的优越性,指出它们分别代表非注入式和注入式转子一点接地保护的发展方向。从原理上来说,叠加方波电压式保护是最完备的一种转子一点接地保护。
This paper introduced the advantages of switch sampling theory and injecting square wave voltage theory by analyzed some kinds of protections for one point earth- fault of generator exciting rotor.The switch sampling protection stands for the prospect of non- injection protection and the injecting square wave voltage protection represents the prospect of injection protection. From theoretical discussion,the injecting square wave voltage is one of the best grounding fault protection.
出处
《电力设备》
2006年第11期33-36,共4页
Electrical Equipment
关键词
转子绕组
接地保护
切换采样式保护
叠加方波电压式保护
发电机
rotor
one point earth - fault protection
switch sampling protection
injecting square wave voltage protection
generator
