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Patent Searching and Data


Title:
TRIPPING DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/181532
Kind Code:
A1
Abstract:
The present invention provides a circuit breaker tripping device capable of easily setting the operation time of a circuit breaker. A tripping device of the present invention is provided with a magnetic circuit mechanism unit configured from a conductor that conducts electric current and a moving core configured from a magnetic body that is displaced by a magnetic attractive force between the magnetic body and the conductor. When an electric current greater than what has been set in advance flows through the conductor, the magnetic circuit mechanism unit increases the rate of displacement of the moving core using the magnetic attractive force, decreases the rate of displacement thereafter, and further performs a tripping operation for blocking the electric current.

Inventors:
KAI, Takayuki (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
TAKEMATSU, Toshihiko (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
Application Number:
JP2019/009060
Publication Date:
September 26, 2019
Filing Date:
March 07, 2019
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC CORPORATION (7-3 Marunouchi 2-chome, Chiyoda-ku Tokyo, 10, 〒1008310, JP)
International Classes:
H01H73/36
Foreign References:
JPH05342967A1993-12-24
JPH04280027A1992-10-06
JP2002222624A2002-08-09
Attorney, Agent or Firm:
MURAKAMI, Kanako et al. (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
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