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. 22, 2010
Filed:
May. 16, 2006
Hiroyuki Hama, Tokyo, JP;
Hitoshi Sadakuni, Tokyo, JP;
Takuya Otsuka, Tokyo, JP;
Kiyoshi Inami, Tokyo, JP;
Eiichi Nagao, Tokyo, JP;
Hiroyuki Hama, Tokyo, JP;
Hitoshi Sadakuni, Tokyo, JP;
Takuya Otsuka, Tokyo, JP;
Kiyoshi Inami, Tokyo, JP;
Eiichi Nagao, Tokyo, JP;
Mitsubishi Denki Kabushiki Kaisha, Chiyoda-ku, Tokyo, JP;
Abstract
A gas-insulated equipment such as a gas-insulated switchgear provided according to the invention can efficiently improve dielectric strength of an entire electrode system considering electric field distribution of the electrodes and conductors and improving insulation coordination so that miniaturization of the entire device can be achieved. The gas-insulated switchgear includes insulating gas sealed within an earth metal container and an insulating spacer insulating and supporting high-voltage receiving portions. Surfaces of shielding electrodes having a larger diameter than that of high-voltage conductors are covered with thick dielectric coatings, and surfaces of the high-voltage conductors are covered with thin dielectric coatings.