DEVELOPMENT OF PERSISTENT-CURRENT SWITCHES FOR SUPERCONDUCTING COILS ON MAGLEV VEHICLES

This paper presents three persistent-current switches which were developed for superconducting coils on Maglev vehicles. Superconducting wire is used for the switches whose electric resistances are 100 ohms and 200 ohms off-state (normal state), and current capacities are over 600A on-state (superconducting state) in a magnetic field of 1.5T. They are constructed of ten slender switch elements connected in parallel. Test results show that two of the switches can pass a current of 700A without quenching under conditions such as momentary spring vibrations or even if one of the ten switch elements is heated by the manganin wire heater.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/3127232
• Corporate Authors:

  Railway Technical Research

  2-8-38, Hikari-cho, Kokubunji-shi
  Tokyo 185,   Japan 
• Authors:
  • NEMOTO, K
• Publication Date: 1990-12

Media Info

• Pagination: pp
• Serial:
  • Railway Technical Research Institute, Quarterly Reports
  • Volume: 31
  • Issue Number: 4
  • Publisher: Railway Technical Research Institute/Tetsudo Gijutsu Kenkyujo
  • ISSN: 0033-9008
  • Serial URL: http://www.rtri.or.jp/eng/

Subject/Index Terms

• TRT Terms: Electric current; Electrical equipment; Magnetic levitation; Switching
• Uncontrolled Terms: Switches
• Subject Areas: Highways; Public Transportation; Vehicles and Equipment;

Filing Info

• Accession Number: 00608387
• Record Type: Publication
• Files: TRIS
• Created Date: May 31 1991 12:00AM