• DocumentCode
    1448672
  • Title

    A carrier-current frequency-shift system for protection of transformer banks

  • Author

    Beckwith, R. W.

  • Author_Institution
    General Electric Company. Syracuse, N. Y.
  • Volume
    70
  • Issue
    8
  • fYear
    1951
  • Firstpage
    678
  • Lastpage
    681
  • Abstract
    Using crystal-controlled frequency-shift techniques, this system provides fast operation with a high degree of reliablity. This discussion describes the design requirements and tells how they were met.
  • Keywords
    Crystals; Electron tubes; Noise; Radio transmitters; Receivers; Relays; Time frequency analysis;
  • fLanguage
    English
  • Journal_Title
    Electrical Engineering
  • Publisher
    ieee
  • ISSN
    0095-9197
  • Type

    jour

  • DOI
    10.1109/EE.1951.6436763
  • Filename
    6436763