High Temperature Superconducting Cable for Railway System

Masaru TOMITA; Kenji SUZUKI; Yusuke FUKUMOTO; Atsushi ISHIHARA; Tomoyuki AKASAKA; Yusuke KOBAYASHI

doi:10.2219/rtriqr.54.172

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High Temperature Superconducting Cable for Railway System

Masaru TOMITA, Kenji SUZUKI, Yusuke FUKUMOTO, Atsushi ISHIHARA, Tomoyuki AKASAKA, Yusuke KOBAYASHI

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Keywords: DC HTS cable, railway systems, critical current(I_c), over current quality

JOURNAL FREE ACCESS

2013 Volume 54 Issue 3 Pages 172-176

DOI https://doi.org/10.2219/rtriqr.54.172

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Abstract

The authors design and develop a prototype DC superconducting cable for railways. For the preliminary evaluation 2 m Bi-2223 DC cable is used. The maximum current flowing in the cable cooled by liquid nitrogen was 1720 A in the inner sheet wire and 2430 A in the outer sheet. The experimental results and simulations led to the conclusion important for practical applications that the leakage of magnetic field was negligible. This result is of crucial importance, in particular for use in railway systems.

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