SUPERCONDUCTING COIL PROTECTION METHOD AND SUPERCONDUCTING MAGNET DEVICE

Title:

SUPERCONDUCTING COIL PROTECTION METHOD AND SUPERCONDUCTING MAGNET DEVICE

Document Type and Number:

WIPO Patent Application WO/2013/035669

Kind Code:

A1

Abstract:

The purpose of the present invention is to provide a superconducting coil protection method capable of preventing a damage of a superconducting coil due to, for example, a quench by a new method in which voltage induced in the superconducting coil (voltage change) is not used. The protection method is used for a superconducting coil formed by winding a tape-shaped superconducting wire having a superconducting layer. The output of an excitation power supply is cut off on the basis of the magnitude of a shielding magnetic field that is the difference between a measured magnetic field (B) in the thickness direction of the superconducting wire at a predetermined position and a magnetic field (Bcal) in the thickness direction of the superconducting wire, calculated by neglecting shielding current.

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JPH05343223	PROTECTING DEVICE FOR SUPERCONDUCTING COIL
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Inventors:

UGLIETTI DAVIDE (CH)
KIYOSHI TSUKASA (JP)
MATSUMOTO SHINJI (JP)
HAMADA MAMORU (JP)

Application Number:

PCT/JP2012/072359

Publication Date:

March 14, 2013

Filing Date:

September 03, 2012

Export Citation:

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Assignee:

NAT INST FOR MATERIALS SCIENCE (JP)
JAPAN SUPERCONDUCTOR TECHNOLOGY INC (JP)
UGLIETTI DAVIDE (CH)
KIYOSHI TSUKASA (JP)
MATSUMOTO SHINJI (JP)
HAMADA MAMORU (JP)

International Classes:

H01F6/02; H01L39/16

Domestic Patent References:

WO2006115126A1

2006-11-02

Foreign References:

JPS5474391A	1979-06-14
JPH03105275A	1991-05-02
JPS57141904A	1982-09-02
JP2007215635A	2007-08-30
JP2009246162A	2009-10-22
JP2001274014A	2001-10-05
JP2006319139A	2006-11-24

Other References: