Optical Investigations of High-Current Vacuum Arc Behavior on Spiral-Shaped and Cup-Shaped RMF-Contacts

被引：0

作者：

Wolf, Christian ^{[1
]}

Kurrat, Michael ^{[1
]}

Lindmayer, Manfred ^{[1
]}

Wilkening, Ernst-Dieter ^{[1
]}

Gentsch, Dietmar ^{[2
]}

机构：

[1] Univ Technol Braunschweig, Inst High Voltage Technol & Elect Power Syst, Schleinitzstr 23, D-38106 Braunschweig, Germany

[2] Calor Emag Mittelspannungsprodukte, ABB AG, D-40472 Ratingen, Germany

来源：

PROCEEDINGS OF THE FIFTY-FIFTH IEEE HOLM CONFERENCE ON ELECTRICAL CONTACTS | 2009年

关键词：

vacuum circuit breaker; interrupters; RMF-contacts; high-speed camera; optical analysis; ELECTRODES; MOTION; MODES;

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：

Vacuum circuit breakers are mostly equipped with radial magnetic field (RIM F) contacts forcing the electric arc on a circular motion by a self-induced magnetic field. Using a high-speed-camera with a recording rate above 25,000 frames per second the appearance of vacuum arcs was investigated from two 90 degrees displaced views regarding three different contact designs with CuCr 75/25 as contact material. Spiral shaped contacts and cup-shaped contacts with diameter of 68 mm and 65 mm, respectively, and spiral shaped contacts with diameter of 90 mm were investigated with 45 Hz short-circuit currents of amplitudes up to 85 kA. From the high-speed films arc motion, shape and velocity as well as current density were determined in consideration of arc voltage and current strength. Results were compared to former publications.

引用

页码：267 / +

页数：2

共 24 条

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