摘要
简要说明了配电系统电压互感器选型及其保护元件选择应注意的问题(如对额定电压因数的要求和互感器励磁特性的要求),对电压互感器的保护元件(如高压熔断器)的选择。文章对消除铁磁谐振的方法措施进行了分析比较,认为采用优化4TV接线方案是消除谐振和抑制低频振荡最有效的措施。
The paper briefly exphined the problems of type selecting of voltage transformer and its protection element selection in distribution system, such as the requiremonts for specified voltage factor and the total excitation property, the requirements for high voltage fuse. The methods and measures for eliminating ferro - resonance were analyzed and compared. It is pointed out that the optknal wiring scheme of 4 TV is the most effective measure for eliminathgresonance and restraining low frequency oscigatinn.
出处
《电力设备》
2007年第1期65-67,共3页
Electrical Equipment
关键词
电压互感器
选型
熔断器
铁磁谐振
配电系统
voltage transformer
type selection
fuse
ferro - resonance
distribution system
