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:
Oct. 31, 2006
Filed:
May. 10, 2005
Yoshiaki Inami, Hitachi, JP;
Koichi Nakano, Tokai-mura, JP;
Takashi Omori, Hitachi, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A switchgear having a primary circuit breaker and a secondary circuit breaker respectively arranged on the primary side and secondary side of a load switch or a voltage and current transformer for an instrument, a primary grounding switch arranged between the load switch or voltage and current transformer for an instrument and the primary circuit breaker, and a secondary grounding switch arranged between the load switch or voltage and current transformer for an instrument and the secondary circuit breaker, wherein to the primary and secondary circuit breakers and grounding switches, connection means are respectively connected so as to move the moving electrodes of the circuit breakers and grounding switches and an operation device for operating the moving electrodes in connection with each other via the connection bars is included and a receiving transformation apparatus using it.