Quarterly Report of RTRI
Online ISSN : 1880-1765
Print ISSN : 0033-9008
ISSN-L : 0033-9008
PAPERS
Development of A Superconducting Transformer for Rolling Stock
Hiroshi HATAHiroki KAMIJOHiroyuki FUJIMOTOKen NAGASHIMAKazuya IKEDAMasataka IWAKUMAKazuo FUNAKIHisao YAMADAYasutaka SANUKIAkira TOMIOKAKenetsu UWAMORIShigeru YOSHIDA
Author information
JOURNAL FREE ACCESS

2006 Volume 47 Issue 1 Pages 24-27

Details
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 bismuth (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. This paper describes the transformer details and test results.

Information related to the author
© 2006 by Railway Technical Research Institute
Previous article Next article
feedback
Top