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. 04, 2013
Filed:
Oct. 02, 2009
Rei Henmi, Hitachi, JP;
Kyuji Yaginuma, Hitachi, JP;
Rei Henmi, Hitachi, JP;
Kyuji Yaginuma, Hitachi, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
Bus containerof cylindrical shape is filled with insulating gas and main circuit conductoris housed with bus containerin taut condition. Bus containerhas flange. Current transformer containeris installed adjacently to bus container. Current transformer containerincludes inner cylinderand outer sealing member. On the periphery of inner cylinder, three current transformersare provided interposing insulative cushioning material. Other longitudinal end of inner cylinderand bus containerare arranged so that insulation gapis formed in between. Between inner cylinderand outer sealing memberon insulation gapside, varistorof which resistance varies depending on a applied voltage is electrically connected through bonding conductor. Varistorturns into a conducting state when a surge voltage over a predetermined intensity is applied.