EXPLANATION AND PREVENTION OF SUDDEN CURRENT CHANGES IN DIRECT CURRENT TRACTION MOTORS WITH BRIDGE CIRCUITS

ERLAEUTERUNG UND VERHUETUNG PLOETZLICHER STROMANDERUNG BEI DER BRUECKENSCHALTUNG VON GLEICHSTROMFAHRMOTOREN

To obtain normal transition from series to parallel winding, bridge circuits have been used. Even so, current fluctuations occur frequently, causing wheel slip. In order to ensure that the product of the current and inductance shall remain virtually constant in every element of the traction motor during switching of the bridge circuits, every element of the main circuit of the traction motor has to be fitted with a reactance coil, the inductance of which decreases with an increasing current. To accelerate transition, the resistance reactors in the parallel winding, forming a Wheatstone bridge, must be switched simultaneously in the principal circuit by means of thyristors.

  • Corporate Authors:

    Verlag R Oldenbourg

    Rosenheimer Strasse 145
    Munich 80,   Germany 
  • Authors:
    • Masutomi, F
  • Publication Date: 1979

Language

  • German

Media Info

  • Features: Photos;
  • Pagination: p. 232-238
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00303642
  • Record Type: Publication
  • Source Agency: International Union of Railways
  • Files: TRIS
  • Created Date: Feb 11 1980 12:00AM