节点文献
35kV中性点不接地电力网单相接地故障检测研究
Study on the Single Phase-to-Grounding Fault Detection in 35 kV Networks with Isolated Neutral
【摘要】 在小电流接地系统中发生单相接地故障的概率要比其他接地故障大得多。而且不及时的排除会引起其它接地故障的出现,并对电力设备的安全构成威胁。本文作者提出一种应用零序电流在短路时的特点和小波分析的方法来确定短路线路。
【Abstract】 The probability of single phase-to-grounding in the small current grounding system is much higher than that of anything else. And if it is not eliminated in time, it will lead to worse result. Just as this, finding the faulty in time is very important. In this paper, the author proposes a method to distinguish the feeder by using the hallmark of zero-sequence current in grounding and using wavelet analysis in transient.
【关键词】 小电流接地电网;
在线监测;
零序电流;
小波分析;
【Key words】 small current grounding system; diagnosis faulty on line; zero sequence current; wavelet analysis;
【Key words】 small current grounding system; diagnosis faulty on line; zero sequence current; wavelet analysis;
- 【文献出处】 西华大学学报(自然科学版) ,Sichuan University of Science and Technology , 编辑部邮箱 ,2005年04期
- 【分类号】TM862
- 【被引频次】1
- 【下载频次】77