Journal of Mechanical Systems for Transportation and Logistics
Online ISSN : 1882-1782
ISSN-L : 1882-1782
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Development of Superconducting Magnets with Current Leads without Gas Cooling
Masafumi OGATAKen NAGASHIMAYoshiki MIYAZAKIMasaru IWAMATSU
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2010 Volume 3 Issue 1 Pages 178-186

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Abstract

The superconducting magnets (SCM) of electromagnetic vibration apparatus for MAGLEV ground coils operate in a persistent current mode for long periods of time. In addition, almost all of the time, the current lead of the SCM acts as a route for heat leak to the inside; therefore, the authors have developed low-heat-load current lead equipment. This equipment consists of a high-temperature superconductor (HTS) lead and the low-duty metallic lead allows the SCM to magnetize and demagnetize without a gas cooling system. This realizes a simplification of work procedure and reliable operations for magnetizing and demagnetizing the SCM. This result is also valuable for further improving the SCM of the MAGLEV vehicle.

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© 2010 by The Japan Society of Mechanical Engineers
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