Curtin University Homepage
  • Library
  • Help
    • Admin

    espace - Curtin’s institutional repository

    JavaScript is disabled for your browser. Some features of this site may not work without it.
    View Item 
    • espace Home
    • espace
    • Curtin Research Publications
    • View Item
    • espace Home
    • espace
    • Curtin Research Publications
    • View Item

    Condition assessment of power transformer bushing using SFRA and DGA as auxiliary tools

    Access Status
    Fulltext not available
    Authors
    Mohseni, B.
    Hashemnia, N.
    Islam, Syed
    Date
    2016
    Type
    Conference Paper
    
    Metadata
    Show full item record
    Citation
    Mohseni, B. and Hashemnia, N. and Islam, S. 2016. Condition assessment of power transformer bushing using SFRA and DGA as auxiliary tools, in Proceedings of the International Conference on Power System Technology (POWERCON), Sep 28-Oct 1 2016. Wollongong, NSW, Australia: IEEE.
    Source Title
    2016 IEEE International Conference on Power System Technology, POWERCON 2016
    DOI
    10.1109/POWERCON.2016.7753973
    ISBN
    9781467388481
    School
    Department of Electrical and Computer Engineering
    URI
    http://hdl.handle.net/20.500.11937/10677
    Collection
    • Curtin Research Publications
    Abstract

    Dielectric insulation of a transformer bushing deteriorates as a function of temperature, oxidation, and moisture. This causes accelerated aging of oil and cellulosic solid insulation, generating fault gases within bushing oil and eventual permanent failure. To prevent such failures, effective analyses and diagnoses need to be investigated. Dissolved Gas Analysis (DGA) can give the indication of internal abnormalities inside the transformer bushing. In addition, Frequency response analysis (FRA) is a widely accepted tool for mechanical deformation diagnosis within power transformers. Although a large number of studies have been conducted on the detection of transformer winding deformation by FRA technique, the impact of bushing faults on the transformer FRA signature has not been sufficiently investigated. It is the goal of this paper to propose precise simulation as well as practical analyses demonstrating the impact of bushing faults on the FRA signature. A real transformer bushing geometry is modelled through 3D finite element analysis (FEM) on which different bushing faults are emulated. To verify the derived simulation results, DGA of transformer oil as well as FRA are performed on a three-phase, 132 kV, 315 MVA power transformer. It can be observed clearly from the results, that bushing faults have an impact on the FRA signature and DGA of the power transformer.

    Related items

    Showing items related by title, author, creator and subject.

    • Application of digital image processing to detect transformer bushing faults and oil degradation using FRA polar plot signature
      Aljohani, O.; Abu-Siada, Ahmed (2017)
      Frequency Response Analysis (FRA) technique is commonly used to assess the mechanical integrity of power transformer core and windings. A few papers investigating the ability of FRA technique to detect bushing faults and ...
    • Detection of Power Transformer Bushing Faults and Oil Degradation using Frequency Response Analysis
      Hashemnia, Seyednaser; Abu-Siada, Ahmed; Islam, Syed (2015)
      Frequency response analysis (FRA) has been globally accepted as a reliable tool to detect mechanical deformation within power transformers. However, because of its reliance on graphical analysis, interpretation of FRA ...
    • Identification of the minimum detection of transformer bushing failure based on Frequency Response Analysis (FRA)
      Aljohani, O.; Abu-Siada, Ahmed (2017)
      Frequency Response Analysis (FRA) is the most reliable technique for detecting a mechanical failure within electrical power transformers. Associated literature reports the ability of the FRA technique to identify ...
    Advanced search

    Browse

    Communities & CollectionsIssue DateAuthorTitleSubjectDocument TypeThis CollectionIssue DateAuthorTitleSubjectDocument Type

    My Account

    Admin

    Statistics

    Most Popular ItemsStatistics by CountryMost Popular Authors

    Follow Curtin

    • 
    • 
    • 
    • 
    • 

    CRICOS Provider Code: 00301JABN: 99 143 842 569TEQSA: PRV12158

    Copyright | Disclaimer | Privacy statement | Accessibility

    Curtin would like to pay respect to the Aboriginal and Torres Strait Islander members of our community by acknowledging the traditional owners of the land on which the Perth campus is located, the Whadjuk people of the Nyungar Nation; and on our Kalgoorlie campus, the Wongutha people of the North-Eastern Goldfields.