• DocumentCode
    1517814
  • Title

    Interrupting Duty

  • Author

    Simpson, Ronald H.

  • Author_Institution
    With GE Energy Syst. in Norcross, Norcross, GA, USA
  • Volume
    17
  • Issue
    4
  • fYear
    2011
  • Firstpage
    53
  • Lastpage
    61
  • Abstract
    This article discusses the interruption rating of low-voltage devices. The application of low-voltage circuit breakers for interrupting duty requires consideration of motor contributions, power factor of the fault current, and ground faults from solidly grounded sources. Under specific conditions, ground fault duty can exceed the three-phase bolted fault value and over duty the equipment.
  • Keywords
    circuit breakers; fault currents; interrupters; circuit breaker; fault current; ground fault; interrupting duty; low voltage device; power factor; three phase bolted fault value; Circuit breakers; Circuit faults; Fault currents; Reactive power; Resistance; Substations; Voltage control;
  • fLanguage
    English
  • Journal_Title
    Industry Applications Magazine, IEEE
  • Publisher
    ieee
  • ISSN
    1077-2618
  • Type

    jour

  • DOI
    10.1109/MIAS.2010.939621
  • Filename
    5768054
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1517814