Sixteen years ago the first prototype railway car equipped with a Hitachi high power chopper for railway use was introduced in the 1.5 kv dc system of the Teito Rapid Transit Authority in Tokyo (TRTA). The basic concept was established at that time and has since been improved with new components and techniques, namely a high voltage, high current reverse conducting thyristor, a gate turn-off (GTO) thyristor, a Freon evaporation cooling system, compound or separate field traction motor control, and various sophisticated control techniques. As a result, the range of application has expanded. Two featured systems, a GTO thyristor chopper-controlled shunt motor drive and a 3 kv high power chopper for electric cars, are introduced in this paper.

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  • Corporate Authors:

    Hitachi Limited, Publications Department

    Nippon Bldg, #6-2, 2-chome Ohtemachi, Chiyoda-ku
    Tokyo 100,   Japan 
  • Authors:
    • Yamada, Y
    • Yasunami, M
  • Publication Date: 1984-2

Media Info

  • Features: References;
  • Pagination: p. 11-16
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00387852
  • Record Type: Publication
  • Source Agency: Engineering Index
  • Files: TRIS
  • Created Date: Oct 30 1984 12:00AM