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. 29, 2002
Filed:
Dec. 08, 1999
Bruno Halvarsson, Ludvika, SE;
Lars Hermansson, Västerås, SE;
ABB AB, Vasteras, SE;
Abstract
A plant for transmitting electric power with a direct voltage network and at least two stations connected thereto with line commutated valves ( ) with bidirectionally controlled thyristors (BCT) with ability to conduct current in both directions therethrough as rectifying semiconductor components, comprises at least one cable ( ) with an insulating mantle with a polymer base surrounding the conductor thereof for forming the direct voltage network interconnecting the stations. The plant has also a unit ( ) adapted to control the thyristors of the valves for changing the power feeding direction between the stations through changing the current direction in said cable.