Estimation of Earth-Faults in Insulated Neutral Networks by Earth-Fault initiation's character

被引：0

作者：

Gudzius, Saulius ^{[1
]}

Markevicius, Linas Andronis ^{[1
]}

Morkvenas, Alfonsas ^{[1
]}

Markevicius, Linas ^{[1
]}

机构：

[1] Kaunas Univ Technol, Kaunas, Lithuania

来源：

18TH INTERNATIONAL CONFERENCE ELECTROMAGNETIC DISTURBANCES EMD 2008, VOL 2, PROCEEDINGS | 2008年

关键词：

overvoltages; earth-fault; insulated neutral network; arresters;

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The initial earth-faults cause high frequency swings that are moulded by three different frequency processes. Dangerous overvoltages are formed during transients, and they influence the insulation in the whole galvanically connected network. The registration of initial processes and examination of these registrations by special algorithms enables to find a weak insulation spots. Special algorithms are used for the analysis of the recorded registrations and they enable to detect spots of variable earth-faults and to increase the reliability of distribution network. This paper presents the result of the analysis of registered initiations of multiple earth-faults in healthy network phases. The digital model is worked out to examine the mentioned registered processes.

引用

页码：37 / 40

页数：4