• DocumentCode
    1458177
  • Title

    Generator protection from unbalanced currents

  • Author

    Barkle, J. E. ; Glassburn, W. E.

  • Author_Institution
    Westinghouse Electric Corporation, East Pittsburgh, Pa.
  • Volume
    72
  • Issue
    11
  • fYear
    1953
  • Firstpage
    1012
  • Lastpage
    1012
  • Abstract
    WHEN A GENERATOR is subjected to unbalanced short-circuit currents, a negative-sequence current (I2) is caused to flow in the stator windings, establishing a counter rotating flux that induces double-frequency rotor currents. The rotor currents flow in the surface parts of the rotor and cause detrimental heating. The generator is susceptible to varying degrees of damage depending on the magnitude of the negative-sequence current.
  • Keywords
    Circuit faults; Generators; Heating; Relays; Rotors; Standards; Synchronous machines;
  • fLanguage
    English
  • Journal_Title
    Electrical Engineering
  • Publisher
    ieee
  • ISSN
    0095-9197
  • Type

    jour

  • DOI
    10.1109/EE.1953.6438343
  • Filename
    6438343
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1458177