• DocumentCode
    957245
  • Title

    The Testing of Sliding Electrical Contacts for Homopolar Generators

  • Author

    Brennan, Mire ; Eliezer, Zwy ; Weldon, William F. ; Rylander, H. Grady ; Woodson, Herbert H.

  • Author_Institution
    University of Texas,Austin, TX
  • Volume
    2
  • Issue
    1
  • fYear
    1979
  • fDate
    3/1/1979 12:00:00 AM
  • Firstpage
    111
  • Lastpage
    115
  • Abstract
    Due to the recent interest in homopolar generators as pulsed power supplies, the need has arisen for pulsed brush data on slip rings at high current levels and high surface velocities. Tests were conducted to examine the effect of varying the apparent area of contact on the coefficient of friction, voltage drop, and wear rate. Brush areas from 0.806-3.23 cm2were individually tested at current levels from 0.0-2800 A per brush. Experimental data are presented for a high copper grade of commerically available sintered copper graphite material. The data corroborate the "thermal mounding" phenomenon described by R. A. Marshall.
  • Keywords
    Contacts; Homopolar generators; Testing; Brushes; Contacts; Force measurement; Friction; Power generation; Pulse generation; Pulsed power supplies; Testing; Voltage; Welding;
  • fLanguage
    English
  • Journal_Title
    Components, Hybrids, and Manufacturing Technology, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    0148-6411
  • Type

    jour

  • DOI
    10.1109/TCHMT.1979.1135419
  • Filename
    1135419
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=957245