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:
Aug. 23, 2016
Filed:
Dec. 12, 2011
Applicant:
Yasushi Takeuchi, Tokyo, JP;
Inventor:
Yasushi Takeuchi, Tokyo, JP;
Assignee:
MITSUBISHI ELECTRIC CORPORATION, Chiyoda-Ku, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01H 47/26 (2006.01); H01H 47/32 (2006.01); H01H 33/59 (2006.01); H01H 33/666 (2006.01); H01H 11/00 (2006.01);
U.S. Cl.
CPC ...
H01H 47/26 (2013.01); H01H 33/59 (2013.01); H01H 33/6662 (2013.01); H01H 2011/0068 (2013.01);
Abstract
There is provided an electromagnetic operation device for a vacuum circuit breaker, which controls by its electromagnetic operation, a speed of contact switching operation of a vacuum switch tube used in the vacuum circuit breaker, the electromagnetic operation device including a closing drive coil for the vacuum switch tube; and a first temperature sensor that measures a temperature surrounding the closing drive coil, wherein a current caused to flow through the closing drive coil is controlled based on the temperature measured by the first temperature sensor.