STUDY ON TESTING METHODS OF CARBON BRUSHES FOR ELECTRIC ROLLING-STOCKS

This report gives an account of experimental investigations of the factors influencing the commutation of carbon brushes for rolling stock and brush wear. It was established that: (1) the voltage drop in the commutator/brush is not proportional to current intensity; (2) the voltage/current characteristics of this interface depends on humidity; and (3) brush wear depends on current intensity, friction, sparks, humidity and the type of brush used. Numerous diagrams illustrate the various aspects examined in the study.

  • Availability:
  • Supplemental Notes:
    • This publication, Railway Technical Research Institute Quarterly Reports, is also available from Ken-yusha, 1-45-6 Hakari-cho, Kokubunji, Tokyo, Japan.
  • Corporate Authors:

    Ken-yusha, Incorporated

    1-45-6 Hikari-cho, Kokubunji-shi
    Tokyo,   Japan 
  • Authors:
    • Teraoka, T
    • ISHIKAWA, K
  • Publication Date: 1974-3

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00081264
  • Record Type: Publication
  • Source Agency: International Railway Documentation, Selection of
  • Report/Paper Numbers: Quart Rpt.
  • Files: TRIS
  • Created Date: Feb 27 1975 12:00AM