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.

Date of Patent:
Oct. 28, 2014

Filed:

Jan. 22, 2013
Applicant:

Rolls-royce Plc, London, GB;

Inventors:

Stephen Mark Husband, Derby, GB;

Alexander Charles Smith, Holmfirth, GB;

Roger Shuttleworth, Stockport, GB;

Xiaoze Pei, Manchester, GB;

Assignee:

Rolls-Royce PLC, London, GB;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02H 7/00 (2006.01); H02H 9/02 (2006.01);
U.S. Cl.
CPC ...
H02H 9/023 (2013.01); Y02E 40/69 (2013.01);
Abstract

This invention relates to a current limiter comprising a first circuit portion arranged in parallel with a second circuit portion, the first circuit portion comprising a superconductor element arranged in series with a switching arrangement, the second circuit portion comprising a load element, the superconductor element being disposed within a cooling chamber, and the cooling chamber and the switch being disposed within a vacuum chamber, wherein the switching arrangement comprises: a mechanical actuator which is operable between a closed condition in which current is conducted through the first circuit portion and an open condition in which current is diverted from the first circuit portion through the second circuit portion and a controller for monitoring and operating the switch.


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