• DocumentCode
    1543911
  • Title

    Analysis of very fast transients in transformers

  • Author

    Shibuya, Y. ; Fujita, S. ; Tamaki, E.

  • Volume
    148
  • Issue
    5
  • fYear
    2001
  • fDate
    9/1/2001 12:00:00 AM
  • Firstpage
    377
  • Lastpage
    383
  • Abstract
    Very fast transient overvoltages generated in gas-insulated switchgear could cause a voltage oscillation inside the connected transformer. A practical method to calculate the high-frequency transients in the transformer winding is developed based on multiconductor transmission-line theory. Resonance characteristics of a transformer are assessed using the inductance matrix obtainable from its winding geometry. Applicability to transients of frequencies up to several megahertz is checked in a model transformer and an actual 500 kV transformer. The calculated interturn voltage waveforms are in particularly good agreement with experiment
  • Keywords
    inductance; multiconductor transmission lines; oscillations; power transformers; resonance; transformer windings; transient analysis; transmission line theory; 500 kV; gas-insulated switchgear; inductance matrix; interturn voltage waveforms; multiconductor transmission-line theory; power transformers; resonance characteristics; transformer winding; very fast transient overvoltages; very fast transients analysis; voltage oscillation; winding geometry;
  • fLanguage
    English
  • Journal_Title
    Generation, Transmission and Distribution, IEE Proceedings-
  • Publisher
    iet
  • ISSN
    1350-2360
  • Type

    jour

  • DOI
    10.1049/ip-gtd:20010504
  • Filename
    959664