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    A New Technique to Measure Interfacial Tension of Transformer Oil using UV-Vis Spectroscopy

    228144.pdf (496.1Kb)
    Access Status
    Open access
    Authors
    Abu Bakar, Norazhar
    Abu-Siada, Ahmed
    Islam, Syed
    El-Naggar, M.
    Date
    2015
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Abu Bakar, N. and Abu-Siada, A. and Islam, S. and El-Naggar, M. 2015. A New Technique to Measure Interfacial Tension of Transformer Oil using UV-Vis Spectroscopy. IEEE Transactions on Dielectrics and Electrical Insulation. 22 (2): pp. 1275-1282.
    Source Title
    IEEE Transactions on Dielectrics and Electrical Insulation
    DOI
    10.1109/TDEI.2015.7076831
    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/20.500.11937/28017
    Collection
    • Curtin Research Publications
    Abstract

    Interfacial tension (IFT) and acid numbers of insulating oil are correlated with the number of years that a transformer has been in service and are used as a signal for transformer oil reclamation. Oil sampling for IFT measurement calls for extra precautions due to its high sensitivity to various oil parameters and environmental conditions. The current used technique to measure IFT of transformer oil is relatively expensive, requires an expert to conduct the test and it takes long time since the extraction of oil sample, sending it to external laboratory and getting the results back. This paper introduces a new technique to estimate the IFT of transformer oil using ultraviolet-to-visible (UV-Vis) spectroscopy. UV-Vis spectral response of transformer oil can be measured instantly with relatively cheap equipment, does not need an expert person to conduct the test and has the potential to be implemented online. Results show that there is a good correlation between oil spectral response and its IFT value. Artificial neural network (ANN) approach is proposed to model this correlation.

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