Search International and National Patent Collections

1. (WO2017150079) DIRECT CURRENT CIRCUIT BREAKER

Pub. No.:    WO/2017/150079    International Application No.:    PCT/JP2017/004200
Publication Date: Sat Sep 09 01:59:59 CEST 2017 International Filing Date: Tue Feb 07 00:59:59 CET 2017
IPC: H01H 33/59
H01H 9/54
Applicants: TOKYO INSTITUTE OF TECHNOLOGY
国立大学法人東京工業大学
Inventors: YASUOKA, Koichi
安岡 康一
TAKEUCHI, Nozomi
竹内 希
TSUBOI, Yoshiki
坪井 祥紀
HAYAKAWA, Tatsuya
早川 達也
Title: DIRECT CURRENT CIRCUIT BREAKER
Abstract:
This direct current circuit breaker 2 comprises a main circuit breaker 4 and a semiconductor switch 8. The main circuit breaker 4 is provided on a main path 6, and the semiconductor switch 8 is provided on an alternative path 10 parallel to the main path 6. This direct current circuit breaker 2 is configured in such a manner that, at opening time of the contact poles from the main circuit breaker 4, the semiconductor switch 8 is turned ON before the inter-contact voltage Vc arising between the two ends of the main circuit breaker 4 reaches a boiling voltage Vb.