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    Impact of Insulating Oil Degradation on the Power Transformer Frequency Response Analysis

    Access Status
    Fulltext not available
    Authors
    Aljohani, O.
    Abu-Siada, Ahmed
    Islam, Syed
    Date
    2015
    Type
    Conference Paper
    
    Metadata
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    Citation
    Aljohani, O. and Abu-Siada, A. and Islam, S. 2015. Impact of Insulating Oil Degradation on the Power Transformer Frequency Response Analysis, in Phung, T. and Blackburn, T. (ed), 2015 IEEE International Conference on the Properties and Applications of Dielectric Materials (ICPADM), Jul 19-22 2015, pp. 396-399. Sydney, NSW: IEEE Dielectrics and Electrical Insulation Society.
    Source Title
    International Conference on the Properties and Applications of Dielectric Materials
    Source Conference
    International Conference on the Properties and Applications of Dielectric Materials
    DOI
    10.1109/ICPADM.2015.7295292
    ISBN
    978-1-4799-8902-7
    School
    Department of Electrical and Computer Engineering
    URI
    http://hdl.handle.net/20.500.11937/16785
    Collection
    • Curtin Research Publications
    Abstract

    Frequency Response Analysis (FRA) has become a reliable tool to detect mechanical deformation within power transformers. Many researchers have investigated the impact of various mechanical winding and core deformations on transformer FRA signature using either simulation analysis or practical testing to establish a standard code for FRA signature interpretation. None of them however, have given attention to the impact of power transformer insulating oil degradation on the transformer FRA signature. This paper investigates the effect of insulating mineral oil degradation on power transformer FRA signature. In this regard, the physical geometrical dimension of a single-phase transformer filled with insulating mineral oil is simulated using three dimensional finite element analysis to emulate the real transformer operation. Transformer FRA signature is measured and analysed with various health conditions of the insulating oil. Results show that, insulating oil degradation has a significant impact on the transformer FRA signature.

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    • Impact of Power Transformer Insulating Mineral Oil Degradation on FRA Polar Plot
      Aljohani, O.; Abu-Siada, Ahmed (2015)
      Frequency response analysis (FRA) has been employed as an effective tool for the detection of various mechanical winding and core deformations within electrical power transformer. Traditional FRA signature interpretation ...
    • 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 ...
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      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 ...
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