Characterization of Bi-2223 tapes for the development of DC superconducting cable for railways

M. Tomita, K. Suzuki, Y. Fukumoto, A. Ishihara, M. Muralidhar

Research output: Contribution to journalConference articlepeer-review

3 Citations (Scopus)


In this paper, the performance of the commercially available Bi-2223 tapes are carried out at liquid nitrogen temperature to estimate the basic characteristics of the tapes in order to design and development of superconducting cable for use in railway system applications. The current-voltage (I-V) characteristics of the tapes were studied at 77 K indicated that the critical current (Ic) is around 181-196 A. The pulse current that limited the fault current was estimated in different Ic tapes and these investigations suggested that the copper alloy protective layer was crucial to improve the over current quality. The effect of magnetic field on the critical current (Ic) of copper alloy laminated superconducting tapes show that the critical current strongly decreased with external magnetic field perpendicular to the tape surface. The results demonstrate that selection of tape and its basic characteristic are crucial importance in the design of the HTS cables.

Original languageEnglish
Pages (from-to)1301-1304
Number of pages4
JournalPhysics Procedia
Publication statusPublished - 2012
Externally publishedYes
EventSuperconductivity Centennial Conference, SCC 2011 - The Hague, Netherlands
Duration: 2011 Sept 182011 Sept 23


  • Bi-2223
  • Copper alloy protective layer
  • Critical current (I)
  • Magnetic field
  • Over current quality

ASJC Scopus subject areas

  • Physics and Astronomy(all)


Dive into the research topics of 'Characterization of Bi-2223 tapes for the development of DC superconducting cable for railways'. Together they form a unique fingerprint.

Cite this