• DocumentCode
    1347876
  • Title

    On-line diagnostics of high-voltage bushings and current transformers using the sum current method

  • Author

    Lachman, Mark F. ; Walter, Wolf ; Von Guggenberg, Philip A.

  • Author_Institution
    Doble Eng. Co., Watertown, MA, USA
  • Volume
    15
  • Issue
    1
  • fYear
    2000
  • fDate
    1/1/2000 12:00:00 AM
  • Firstpage
    155
  • Lastpage
    162
  • Abstract
    Experience with the application of the sum current method to on-line diagnostics of high-voltage bushings and current transformers is presented. The method and analysis are described along with field experience obtained at fourteen substations, comprising 56 sets of (three) bushings and current transformers. The influences of temperature, humidity and changes in more than one bushing are discussed
  • Keywords
    bushings; capacitance; current transformers; electric current measurement; power transformer testing; substations; capacitance; current transformers; high-voltage bushings; humidity; on-line diagnostics; power factor; substations; sum current method; temperature; Capacitance; Current transformers; Diagnostic expert systems; Humidity; Insulators; Power systems; Reactive power; Substations; Temperature; Thermal stresses;
  • fLanguage
    English
  • Journal_Title
    Power Delivery, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    0885-8977
  • Type

    jour

  • DOI
    10.1109/61.847244
  • Filename
    847244
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1347876