SUPERCONDUCTING FAULT CURRENT LIMITER AND COOLING METHOD FOR SUPERCONDUCTING ELEMENT WITHIN SUPERCONDUCTING FAULT CURRENT LIMITER

Title:

SUPERCONDUCTING FAULT CURRENT LIMITER AND COOLING METHOD FOR SUPERCONDUCTING ELEMENT WITHIN SUPERCONDUCTING FAULT CURRENT LIMITER

Document Type and Number:

WIPO Patent Application WO/2014/126006

Kind Code:

A1

Abstract:

A superconducting fault current limiter (10) is provided with superconducting elements (71, 72) that are in a superconducting state during electrification with a current value in a fixed range and in a normal conducting state during electrification with a fault current in which the current value exceeds the fixed range and is further provided with a coolant vessel (20), which accommodates a liquid coolant (60) and a plurality of superconducting elements, and a cooling means (40) that cools the liquid coolant within the coolant vessel. Within the liquid coolant, the superconducting element (71) for which the critical current is smallest among the plurality of superconducting elements is disposed on the upper side of any other superconducting elements (72). Thus, the superconducting element (71) is cooled, and the life of the superconducting fault current limiter as a whole is extended.

Inventors:

KASAHARA HAJIME (JP)
NAKAYAMA TOMOHIRO (JP)
MATSUI MASAKAZU (JP)

Application Number:

PCT/JP2014/052855

Publication Date:

August 21, 2014

Filing Date:

February 07, 2014

Export Citation:

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Assignee:

FURUKAWA ELECTRIC CO LTD (JP)

International Classes:

H01L39/16; H01L39/04; H02H9/02

Foreign References:

JPH09252527A	1997-09-22
JP2005109511A	2005-04-21
JP2007317884A	2007-12-06
JPH02269413A	1990-11-02
JP2013038333A	2013-02-21
JP2000069663A	2000-03-03
JP2012146821A	2012-08-02
JPH06104358A	1994-04-15
JPS6285449A	1987-04-18
JPH0423457A	1992-01-27
JPS63299181A	1988-12-06

Other References: