High-frequency current sensor for power network on-line meaurements

被引：0

作者：

Kuett, Lauri ^{[1
]}

Jaervik, Jaan ^{[1
]}

Vaimann, Toomas ^{[1
]}

Shafiq, Muhammad

Lehtonen, Matti

Kilter, Jako

机构：

[1] Tallinn Univ Technol, Dept Fundamentals Elect Engn & Elect Machines, EE-19086 Tallinn, Estonia

来源：

PROCEEDINGS OF THE 13TH INTERNATIONAL SCIENTIFIC CONFERENCE ELECTRIC POWER ENGINEERING 2012, VOLS 1 AND 2 | 2012年

关键词：

faults in power system; fault signal; partial discharge; high-frequency sensor; high-frequency transients;

D O I：

暂无

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

High-frequency transients in power distribution networks can be caused by faults or this may be indication of soon to happen breakdown of isolation. In many cases monitoring and precise measurements of the high-frequency phenomena can help to determine location of fault on the line, but also lead to discovery of problematic component prior to breakdown. Equipment available in distribution substations today is not capable of monitoring such high-frequency signals. In this paper a current sensor for detecting fault and pre-fault high-frequency transients is proposed. Requirements for such a sensor are presented and a sensor design meeting the requirement is carried out. Topics regarding sensor bandwidth and sensitivity are discussed.

引用

页码：367 / 371

页数：5

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