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    Improved Power Transformer Winding Fault Detection using FRA Diagnostics – Part 2: Radial Deformation Simulation

    228142_228142.pdf (562.6Kb)
    Access Status
    Open access
    Authors
    Hashemnia, Seyednaser
    Abu-Siada, Ahmed
    Islam, Syed
    Date
    2015
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Hashemnia, S. and Abu-Siada, A. and Islam, S. 2015. Improved Power Transformer Winding Fault Detection using FRA Diagnostics – Part 2: Radial Deformation Simulation. IEEE Transactions on Dielectrics and Electrical Insulation. 22 (1): pp. 564-570.
    Source Title
    IEEE Transactions on Dielectrics and Electrical Insulation
    DOI
    10.1109/TDEI.2014.004592
    ISSN
    1070-9878
    School
    Department of Electrical and Computer Engineering
    Remarks

    Copyright © 2015 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.

    URI
    http://hdl.handle.net/20.500.11937/34024
    Collection
    • Curtin Research Publications
    Abstract

    Frequency response analysis (FRA) is proven to be a powerful tool to detect winding deformation within power transformers. Although the FRA test along with the equipment are well developed, interpretation of FRA signature is still a challenge and it needs skilled personnel to identify and quantify the fault type if exists as at this stage, there is no reliable standard code for FRA signature classification and quantification. As it is very hard to implement faults on physical transformer without damaging it, researchers investigated the impact of various mechanical winding deformations on the transformer FRA signature by randomly changing the value of particular electrical parameters of the transformer equivalent electrical circuit. None of them however, precisely investigated the correlation between physical fault level and the percentage change in each parameter. In this paper, the physical geometrical dimension of a single-phase transformer is simulated using 3D finite element analysis to emulate the real transformer operation. A physical radial deformation of different fault levels is simulated on both low voltage and high voltage windings. The impact of each fault level on the electrical parameters of the equivalent circuit is investigated and the correlation between the fault level and the percentage change in each parameter of the equivalent circuit is provided. This will facilitate precise fault simulation using transformer equivalent electrical circuit and ease the quantification analysis of FRA signature.

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    • Improved Power Transformer Winding Fault Detection using FRA Diagnostics – Part 1: Axial Displacement Simulation
      Hashemnia, Seyednaser; Abu-Siada, Ahmed; Islam, Syed (2015)
      Frequency response analysis (FRA) has become a widely accepted tool to detect power transformer winding deformation due to the development of FRA test equipment. Because FRA relies on graphical analysis, interpretation ...
    • Detection of Power Transformer Disk Space Variation and Core Deformation using Frequency Response Analysis
      Hashemnia, Seyednaser; Abu-Siada, Ahmed; Islam, Syed (2014)
      Frequency response analysis (FRA) has become a widely accepted tool to detect power transformer winding deformation due to the development of FRA test equipment. Because FRA relies on graphical analysis, interpretation ...
    • Application of online impulse technique to diagnose inter-turn short circuit in transformer windings
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      Inter-turn short circuit fault is a significant problem in power transformers which if not detected at early stages, can propagate in power networks and eventually burgeon into catastrophic faults and substantial costs. ...
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