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:
Jun. 10, 2014
Filed:
Aug. 30, 2010
Yuta Nakayama, Chiyoda-ku, JP;
Masahiro Arioka, Chiyoda-ku, JP;
Tomotaka Yano, Chiyoda-ku, JP;
Kyoichi Otsuka, Chiyoda-ku, JP;
Satoru Yoshida, Chiyoda-ku, JP;
Koji Sano, Chiyoda-ku, JP;
Yuta Nakayama, Chiyoda-ku, JP;
Masahiro Arioka, Chiyoda-ku, JP;
Tomotaka Yano, Chiyoda-ku, JP;
Kyoichi Otsuka, Chiyoda-ku, JP;
Satoru Yoshida, Chiyoda-ku, JP;
Koji Sano, Chiyoda-ku, JP;
Mitsubishi Electric Corporation, Chiyoda-Ku, Tokyo, JP;
Abstract
A power switching apparatus includes: a pressure tank having tube-like openings in a shank portion and having an insulating gas sealed therein; a vacuum valve housed in the pressure tank and connected to the pressure tank at one end; bushing conductors penetrating through the openings of the pressure tank and electrically connected to the vacuum valve; and current transformers provided on an outside of the pressure tank and measuring a current flowing through the bushing conductors. Tube-like current transformer installation portions on which to install the current transformers are provided above the openings of the pressure tank and an outside diameter of the openings of the pressure tank is made larger than an outside diameter of the current transformer installation portions.