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:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/3127232
• 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

• Features: Figures;
• Pagination: p. 46-50
• Serial:
  • Railway Technical Research Institute, Quarterly Reports
  • Volume: 15
  • Issue Number: 1
  • Publisher: Railway Technical Research Institute/Tetsudo Gijutsu Kenkyujo
  • ISSN: 0033-9008
  • Serial URL: http://www.rtri.or.jp/eng/

Subject/Index Terms

• TRT Terms: Diesel electric locomotives; Electric automobiles; Electric locomotives; Electric vehicles; Motors; Traction; Traction drives
• Subject Areas: Railroads; Vehicles and Equipment;

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