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Performance of Natural Ester as a Transformer Oil in Moisture-Rich Environments

Author

Listed:
  • Kapila Bandara

    (School of Information Technology and Electrical Engineering, The University of Queensland, Brisbane, QLD 4072, Australia)

  • Chandima Ekanayake

    (School of Engineering, Griffith University, Gold Coast, QLD 4222, Australia)

  • Tapan Saha

    (School of Information Technology and Electrical Engineering, The University of Queensland, Brisbane, QLD 4072, Australia)

  • Hui Ma

    (School of Information Technology and Electrical Engineering, The University of Queensland, Brisbane, QLD 4072, Australia)

Abstract

Interest has risen among utilities in using natural ester (NE) insulating oils in transformers as a substitute for conventional mineral oil. However, present understanding on aging behaviour of NE-paper composite insulation system and knowledge on application of existing condition monitoring tools for NE-based insulation are inadequate. This limits the cost effective and reliable field applications of NE insulating oil. To pave the way the application of NE-based insulation in transformers, a systematic study has been performed to compare the aging behaviour of transformer grade pressboard (PB) impregnated in NE and conventional mineral oil. Applicability of a number of chemical and physical parameters, including acidity value, dielectric dissipation factor (DDF), viscosity, and colour for assessing the quality of NE insulating oil is also discussed in this paper. Comparisons are made based on the limiting values provided in the related IEEE Standard and properties of mineral oil under similar aging conditions.

Suggested Citation

  • Kapila Bandara & Chandima Ekanayake & Tapan Saha & Hui Ma, 2016. "Performance of Natural Ester as a Transformer Oil in Moisture-Rich Environments," Energies, MDPI, vol. 9(4), pages 1-13, March.
    • Handle: RePEc:gam:jeners:v:9:y:2016:i:4:p:258-:d:66953
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    Citations

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    Cited by:

    1. Pawel Rozga & Marcin Stanek & Bartlomiej Pasternak, 2018. "Characteristics of Negative Streamer Development in Ester Liquids and Mineral Oil in a Point-To-Sphere Electrode System with a Pressboard Barrier," Energies, MDPI, vol. 11(5), pages 1-13, April.
    2. Pawel Rozga, 2016. "Streamer Propagation and Breakdown in a Very Small Point-Insulating Plate Gap in Mineral Oil and Ester Liquids at Positive Lightning Impulse Voltage," Energies, MDPI, vol. 9(6), pages 1-12, June.
    3. Kakou D. Kouassi & Issouf Fofana & Ladji Cissé & Yazid Hadjadj & Kouba M. Lucia Yapi & K. Ambroise Diby, 2018. "Impact of Low Molecular Weight Acids on Oil Impregnated Paper Insulation Degradation," Energies, MDPI, vol. 11(6), pages 1-13, June.
    4. Issouf Fofana & Yazid Hadjadj, 2018. "Power Transformer Diagnostics, Monitoring and Design Features," Energies, MDPI, vol. 11(12), pages 1-5, November.
    5. Janvier Sylvestre N’cho & Issouf Fofana & Yazid Hadjadj & Abderrahmane Beroual, 2016. "Review of Physicochemical-Based Diagnostic Techniques for Assessing Insulation Condition in Aged Transformers," Energies, MDPI, vol. 9(5), pages 1-29, May.
    6. Abi Munajad & Cahyo Subroto & Suwarno, 2017. "Study on the Effects of Thermal Aging on Insulating Paper for High Voltage Transformer Composite with Natural Ester from Palm Oil Using Fourier Transform Infrared Spectroscopy (FTIR) and Energy Disper," Energies, MDPI, vol. 10(11), pages 1-15, November.
    7. Vaclav Mentlik & Pavel Trnka & Jaroslav Hornak & Pavel Totzauer, 2018. "Development of a Biodegradable Electro-Insulating Liquid and Its Subsequent Modification by Nanoparticles," Energies, MDPI, vol. 11(3), pages 1-16, February.
    8. M. Z. H. Makmud & H. A. Illias & C. Y. Chee & M. S. Sarjadi, 2018. "Influence of Conductive and Semi-Conductive Nanoparticles on the Dielectric Response of Natural Ester-Based Nanofluid Insulation," Energies, MDPI, vol. 11(2), pages 1-12, February.
    9. Nur Aqilah Mohamad & Norhafiz Azis & Jasronita Jasni & Mohd Zainal Abidin Ab Kadir & Robiah Yunus & Zaini Yaakub, 2018. "Physiochemical and Electrical Properties of Refined, Bleached and Deodorized Palm Oil under High Temperature Ageing for Application in Transformers," Energies, MDPI, vol. 11(6), pages 1-13, June.

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