DC interruption characteristic of vacuum circuit breaker

被引：31
|
作者：
Odaka, Hiromi
Yamada, Masataka
Sakuma, Ryohei
Ding, Cuie
Kaneko, Eiji
Yanabu, Satoru
机构：
[1] Tokyo Denki Univ, Tokyo 1018457, Japan
[2] Univ Ryukyus, Nishihara, Okinawa 90301, Japan
来源：
ELECTRICAL ENGINEERING IN JAPAN | 2007年 / 161卷 / 01期
关键词：
vacuum circuit breaker; DC current interruption;
D O I：
10.1002/eej.20362
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：
A high-speed vacuum circuit breaker (HSVCB) has been investigated. HSVCB makes high-frequency current superimposed on a fault current so that the current is forced to be zero and is interrupted. Its interruption performance is considered to be dependent on the rate of change of the current (dildt). As a fundamental research, we investigated the dildt-dvldt characteristics and the insulation recovery characteristic after interrupting the counter-pulse current for various contact materials of AgWC, CuW, and CuCr. The results revealed that the case where the gap length is larger is better in a current interruption performance. Moreover, it was found that dildt is not dependent on the insulation recovery characteristics, but the magnitude of interruption current is of great influence. (c) 2007 Wiley Periodicals. Inc.
引用
收藏
页码：17 / 25
页数：9
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