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:
Aug. 12, 2014
Filed:
Jun. 30, 2011
Jürgen Häfner, Ludvika, SE;
Björn Jacobson, Grängesberg, SE;
Tomas Jonsson, Västerås, SE;
Kerstin Lindén, Ludvika, SE;
Bertil Berggren, Västerås, SE;
Jürgen Häfner, Ludvika, SE;
Björn Jacobson, Grängesberg, SE;
Tomas Jonsson, Västerås, SE;
Kerstin Lindén, Ludvika, SE;
Bertil Berggren, Västerås, SE;
ABB Technology AG, Zürich, CH;
Abstract
The present invention relates to an HVDC switchyard arranged to interconnect a first part of a DC grid with a second part of the DC grid. By means of the invention, a first part of the DC grid is connected to the busbars of the HVDC switchyard via a fast DC breaker, while further part(s) of the DC grid are connected to the busbars of the HVDC switchyard by means of switchyard DC breakers of lower breaking speed. By use of the inventive HVDC switchyard arrangement, the cost for the HVDC switchyard can be considerably reduced, while adequate protection can be provided. In one embodiment, the fast DC breaker is an HVDC station DC breaker forming part of an HVDC station. In another embodiment, the fast DC breaker is a switchyard DC breaker.