As one step in the development of light weight superconducting magnets required in the magnetic suspension of super high speed trains, ring shaped magnet consisting of two C-shaped superconducting coils was manufactured and tested. Twisted multifilament Nb Ti wires were used for the superconducting coils and the concept of the pipe structure for a cryostat was adopted. These improved the reliability and reduced the weight. In order to minimize the amount of heat leak into the cryostat, an FRP support with a hinge structure was used against the lift force. The superconducting coil generates a magnetomotive force of 200 kAT at a rated current of 855 A and the dimensions and weight of the whole unit are 1,540mm (outer diameter) and 560mm (height), and 650 kg respectively. The suspension test was done in the persistent current mode. The suspension height of 80 mm was observed at an exciting current of 800 A.


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    Title :

    A lightweight superconducting magnet for a test facility of magnetic suspension for vehicles


    Additional title:

    Leichter supraleitender Magnet fuer eine Magnetschwebebahn


    Contributors:
    Akiyama, S. (author) / Fujino, H. (author) / Onodera, K. (author) / Hirai, K. (author)

    Published in:

    Fuji Electric Review ; 19 , 3 ; 112-118


    Publication date :

    1973


    Size :

    7 Seiten, 14 Bilder, 4 Tabellen, 3 Quellen


    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




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