• DocumentCode
    1146020
  • Title

    Sensitive Ground Fault Interrupter Performance in the Presence of Direct Current

  • Author

    Emanuel, Alexander E. ; Dougherty, John W.

  • Author_Institution
    Worcester Polytechnic Institute Worcester, MA 01609
  • Volume
    1
  • Issue
    1
  • fYear
    1986
  • Firstpage
    111
  • Lastpage
    117
  • Abstract
    This study analyzes the performance of sensitive ground fault interrupters in the presence of dc. It was found that dc bias drastically reduces the sensitivity of the relay. Theoretical models were developed to explain the behavior of the relays. Experimental measurements proved that the pick-up currents may increase from the standard 5mA threshold to values as large as 40mA.
  • Keywords
    Circuit faults; Coils; Fault currents; Insulation; Interrupters; Leakage current; Magnetic cores; Protection; Protective relaying; Voltage;
  • fLanguage
    English
  • Journal_Title
    Power Delivery, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    0885-8977
  • Type

    jour

  • DOI
    10.1109/TPWRD.1986.4307896
  • Filename
    4307896
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1146020