• DocumentCode
    490813
  • Title

    DC Power Distribution and Grounding in the 5ESSTM Switch

  • Author

    Kohl, R.C. ; Jacobs, M.E.

  • Author_Institution
    AT&T Bell Laboratories, Naperville, IL 60566
  • fYear
    1985
  • fDate
    14-17 Oct. 1985
  • Firstpage
    73
  • Lastpage
    78
  • Abstract
    This paper describes the 48-volt dc power distribution system for the 5ESSTM digital switching system. This distribution system includes duplicate feeder lines for increased system reliability. Each of the feeders serves half of the Power Control and Distribution Frame (PCDF). The PCDF incorporates fuses to protect the load from voltage transients and a capacitor to limit the transients generated during fuse clearing. The 5ESS switching system has a single point grounding system ("ground window"). This method of grounding is found to be the most ideal for controlling the external fault or lightning currents to which the switching system is exposed.
  • Keywords
    Capacitors; Fuses; Grounding; Lighting control; Power control; Power distribution; Power system protection; Reliability; Switching systems; Voltage;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Telecommunications Energy Conference, 1985. INTELEC '85. Seventh International
  • Conference_Location
    Munich, Federal Republic of Germany
  • Print_ISBN
    3-8007-1429-9
  • Type

    conf

  • Filename
    4794205
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=490813