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. 09, 2011
Filed:
Jan. 29, 2008
Joachim Bock, Erftstadt, DE;
Frank Breuer, Bonn, DE;
Werner Kohler, Berlin, DE;
Nexans, Paris, FR;
Abstract
Electric fault current limiter has superconducting elements inside a cryogenic vessel and bushings for connecting an external circuit. The electric fault current limiter () includes a cryogenic vessel () and superconducting assemblies () including high temperature type superconducting elements (HTSC) immersed in a liquid coolant () such as liquefied nitrogen. Bushings () with conductors () are associated with a main body () of the vessel () such that the conductors () extend horizontally from a surrounding space into an ullage space () situated between a level () of the liquid coolant () inside the vessel () and a cover (). The arrangement of the bushings () according to the invention allows for removing the cover () without dismantling electrical connections between the current limiter () and a circuit to be protected as is necessary with prior art limiters.