The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 27, 2015
Filed:
Dec. 17, 2010
Kenji Kamei, Chiyoda-ku, JP;
Sho Tokoyoda, Chiyoda-ku, JP;
Tomohito Mori, Chiyoda-ku, JP;
Hiroki Ito, Chiyoda-ku, JP;
Sadayuki Kinoshita, Chiyoda-ku, JP;
Kenji Kamei, Chiyoda-ku, JP;
Sho Tokoyoda, Chiyoda-ku, JP;
Tomohito Mori, Chiyoda-ku, JP;
Hiroki Ito, Chiyoda-ku, JP;
Sadayuki Kinoshita, Chiyoda-ku, JP;
MITSUBISHI ELECTRIC CORPORATION, Chiyoda-Ku, Tokyo, JP;
Abstract
An inrush current suppressing device includes a residual-magnetic-flux calculating unit configured to retain an interruption characteristic of a breaker and an attenuation characteristic of a magnetic flux that are estimated by measurement, analysis, or the like beforehand, and apply the attenuation characteristic to a magnetic flux value at the time of current interruption obtained based on the interruption characteristic of the breaker to calculate a residual magnetic flux value. The breaker is turned on in a power supply voltage phase in which the calculated residual magnetic flux value and a theoretical value of a steady magnetic flux match.