ELECTROMAGNETIC COMPATIBILITY BETWEEN THRYSITOR-CHOPPER CONTROLLED CARS AND ELECTRIC FIXED INSTALLATIONS IN TOKYO SUBWAYS

When commercial operation was initiated between Ayase and Kasumigaseki stations on the Chiyoda Line (Tokyo) in March, 1971, the Teito Rapid Transit Authority put into service 130 chopper-controlled cars made up of thirteen 10-car trains. In February 1972, 60 chopper-controlled cars were put into service. Compared with conventional rheostat-controlled cars, chopper-controlled cars offer improved riding comfort, reduced electric power consumption, and low temperature rise in subway tunnels. However, the thyristor-chopper control generated ripple currents in the trolley wires and rails causing problems with the signaling and communication installations. Analytical studies and tests provided a solution to these problems by employing such measures as filtering and adopting a 660 Hz chopper frequency. As a result of the tests, compatibility between chopper-controlled cars and electric fixed installations was established

  • Supplemental Notes:
    • Presented at the IEEE International Electromagn Compat Symp Rec, New York, N.Y.
  • Corporate Authors:

    Institute of Electrical and Electronics Engineers

    3 Park Avenue, 17th Floor
    New York, NY  USA  10016-5997
  • Authors:
    • Yukawa, R
  • Publication Date: 0

Subject/Index Terms

Filing Info

  • Accession Number: 00056790
  • Record Type: Publication
  • Source Agency: Engineering Index
  • Files: TRIS
  • Created Date: Jul 22 1981 12:00AM