Development of a Superconducting Transformer for Rolling Stock |
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| Journal | Advances in Science and Technology (Volume 47) |
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| Volume | Science and Engineering of Novel Superconductors V |
| Edited by | P. VINCENZINI and A. RIGAMONTI |
| Pages | 204-211 |
| DOI | 10.4028/www.scientific.net/AST.47.204 |
| Citation | Hiroyuki Fujimoto et al., 2006, Advances in Science and Technology, 47, 204 |
| Online since | October, 2006 |
| Authors | Hiroyuki Fujimoto, Hiroshi Hata, Hiroki Kamijo, Ken Nagashima, Kazuya Ikeda, Masataka Iwakuma, Kazuo Funaki, Hisao Yamada, Yasutaka Sanuki, Akira Tomioka, Ken Etsu Uwamori, Shigeru Yoshida |
| Keywords | AC Loss, BSCCO Wire, Cryostat, Output, Railway, Transformer |
| Abstract | Having undertaken studies into a lightweight and highly efficient superconducting transformer for rolling stock, we developed a prototype with a primary winding, four secondary windings and a tertiary winding using Bi-2223 high temperature superconducting wire. Its primary voltage is 25kV, which is widely adopted as the catenary voltage on the world's high-speed lines. We adopted liquid nitrogen cooling, the weight being 1.71t excluding the refrigerator. The maximum output available to maintain superconductivity is 3.5MVA. We also introduce railways in Japan. |
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