A prototype 25 kV 50 Hz electric locomotive is serving to test thyristor control on British Railways. Until now all BR ac electric motive power has used tap changers to regulate motor current. Better use of adhesion because tractive effort peaks caused by notching up are eliminated--plus the rapid response of solid state circuits to wheelslip detection--are the principal adbantages claimed for thyristors. Maintenance requirements are also reduced. Against these must be set possible harmonic interference with signalling and telecommunications circuits. Preliminary trials showed that electrical interference effects are likely to be within acceptable limits.

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  • Corporate Authors:

    IPC Transport Press, Limited

    Dorset House, Stamford Street
    London SE1 9LU,   England 
  • Publication Date: 1975-8

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Filing Info

  • Accession Number: 00126437
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Nov 5 1975 12:00AM