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:
Jul. 23, 2002
Filed:
Jul. 06, 2000
Hirohide Aoki, Tokyo, JP;
Yasuhiro Maeda, Tokyo, JP;
Mitsuo Matsumoto, Tokyo, JP;
Hiroyuki Hama, Tokyo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A gas insulated switching device including a series of pressure containers and mutually connected, in which a conductor is positioned in an inside center, and an insulating and arc-extinguishing gas is filled in a space around the conductor , and a current transformer fabricated by Rogowskii coils for detecting a current passing through the conductor , the current transformer is attached to flanges of the pressure containers and via a metallic adaptor , wherein the current transformer is accommodated in a groove formed toward an inside of the metallic adaptor and uses the metallic adaptor to obtain an earth potential, whereby the gas insulated switching device having the current transformer with high accuracy can be miniaturized.