IDEAS home Printed from https://ideas.repec.org/a/gam/jeners/v15y2022i17p6393-d904178.html
   My bibliography  Save this article

The Need for Experimental and Numerical Analyses of Thermal Ageing in Power Transformers

Author

Listed:
  • Inmaculada Fernández

    (Departamento de Ingeniería Eléctrica y Energética, Universidad de Cantabria, Avda. Los Castros, s/n, 39005 Santander, Spain)

Abstract

Most power transformers are oil-immersed transformers for which its insulation system consists of oil and cellulosic solid. The insulation liquid impregnates the solid-covering air spaces, which improves the efficiency of the insulation system. Not only does the oil ensure electrical insulation but it also works as coolants transferring the heat generated during transformer operation to the exterior of the transformer. Throughout normal operation conditions, transformers experience multiple stresses that degrade their insulation. Since the lifetime of oil-immersed transformers is defined mainly by the state of the insulation paper, it is critical to understand the behavior and degradation mechanisms of new insulation systems that try to overcome the drawbacks of mineral oil as well as to improve power transformer performances. The current increased prevalence of the nonlinear loads additionally stresses power transformers, which generates their premature ageing or even failure. Consequently, new materials and assessment methods are required to guarantee the suitable management of power transformer populations. In this Special Issue “Experimental and Numerical Analysis of Thermal Ageing in Power Transformers”, four papers have been published. The guest editor also describes briefly some challenges involved beyond the coverage of this Special Issue.

Suggested Citation

  • Inmaculada Fernández, 2022. "The Need for Experimental and Numerical Analyses of Thermal Ageing in Power Transformers," Energies, MDPI, vol. 15(17), pages 1-4, September.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:17:p:6393-:d:904178
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/1996-1073/15/17/6393/pdf
    Download Restriction: no
    File URL: https://www.mdpi.com/1996-1073/15/17/6393/
    Download Restriction: no
    ---><---

    References listed on IDEAS

    as
    1. Smitha Karambar & Stefan Tenbohlen, 2021. "Compatibility Study of Silicone Rubber and Mineral Oil," Energies, MDPI, vol. 14(18), pages 1-18, September.
    2. Patryk Bohatyrewicz & Andrzej Mrozik, 2021. "The Analysis of Power Transformer Population Working in Different Operating Conditions with the Use of Health Index," Energies, MDPI, vol. 14(16), pages 1-14, August.
    3. Tobias Münster & Peter Werle & Kai Hämel & Jörg Preusel, 2021. "Thermally Accelerated Aging of Insulation Paper for Transformers with Different Insulating Liquids," Energies, MDPI, vol. 14(11), pages 1-28, May.
    4. Pawel Rozga & Abderrahmane Beroual & Piotr Przybylek & Maciej Jaroszewski & Konrad Strzelecki, 2020. "A Review on Synthetic Ester Liquids for Transformer Applications," Energies, MDPI, vol. 13(23), pages 1-33, December.
    Full references (including those not matched with items on IDEAS)

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Przemyslaw Goscinski & Zbigniew Nadolny & Andrzej Tomczewski & Ryszard Nawrowski & Tomasz Boczar, 2023. "The Influence of Heat Transfer Coefficient α of Insulating Liquids on Power Transformer Cooling Systems," Energies, MDPI, vol. 16(6), pages 1-15, March.
    2. Aniket Vatsa & Ananda Shankar Hati & Vadim Bolshev & Alexander Vinogradov & Vladimir Panchenko & Prasun Chakrabarti, 2023. "Deep Learning-Based Transformer Moisture Diagnostics Using Long Short-Term Memory Networks," Energies, MDPI, vol. 16(5), pages 1-14, March.

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Teresa Nogueira & José Carvalho & José Magano, 2022. "Eco-Friendly Ester Fluid for Power Transformers versus Mineral Oil: Design Considerations," Energies, MDPI, vol. 15(15), pages 1-18, July.
    2. Piotr Przybylek, 2023. "Determination of Mineral Oil Concentration in the Mixture with Synthetic Ester Using Near-Infrared Spectroscopy," Energies, MDPI, vol. 16(17), pages 1-12, September.
    3. Suhaib Ahmad Khan & Mohd Tariq & Asfar Ali Khan & Shabana Urooj & Lucian Mihet-Popa, 2022. "An Experimental Study and Statistical Analysis on the Electrical Properties of Synthetic Ester-Based Nanofluids," Energies, MDPI, vol. 15(23), pages 1-14, December.
    4. Patryk Bohatyrewicz & Szymon Banaszak, 2022. "Assessment Criteria of Changes in Health Index Values over Time—A Transformer Population Study," Energies, MDPI, vol. 15(16), pages 1-15, August.
    5. Georgi Ivanov & Anelia Spasova & Valentin Mateev & Iliana Marinova, 2023. "Applied Complex Diagnostics and Monitoring of Special Power Transformers," Energies, MDPI, vol. 16(5), pages 1-24, February.
    6. Mohammad Kharezy & Hassan Reza Mirzaei & Torbjörn Thiringer & Yuriy V. Serdyuk, 2022. "Green Solution for Insulation System of a Medium Frequency High Voltage Transformer for an Offshore Wind Farm," Energies, MDPI, vol. 15(6), pages 1-21, March.
    7. Piotr Przybylek & Jaroslaw Gielniak, 2023. "The Use of Methanol Vapour for Effective Drying of Cellulose Insulation," Energies, MDPI, vol. 16(11), pages 1-11, May.
    8. Andrey A. Radionov & Ivan V. Liubimov & Igor M. Yachikov & Ildar R. Abdulveleev & Ekaterina A. Khramshina & Alexander S. Karandaev, 2023. "Method for Forecasting the Remaining Useful Life of a Furnace Transformer Based on Online Monitoring Data," Energies, MDPI, vol. 16(12), pages 1-27, June.
    9. Ali A. Radwan & Ahmed A. Zaki Diab & Abo-Hashima M. Elsayed & Yehya S. Mohamed & Hassan Haes Alhelou & Pierluigi Siano, 2021. "Transformers Improvement and Environment Conservation by Using Synthetic Esters in Egypt," Energies, MDPI, vol. 14(7), pages 1-15, April.
    10. Pawel Rozga & Filip Stuchala & Tomasz Piotrowski & Abderrahmane Beroual, 2022. "Influence of Temperature on Lightning Performance of Mineral Oil," Energies, MDPI, vol. 15(3), pages 1-11, January.
    11. Pawel Zukowski & Przemyslaw Rogalski & Vitalii Bondariev & Milan Sebok, 2022. "Diagnostics of High Water Content Paper-Oil Transformer Insulation Based on the Temperature and Frequency Dependencies of the Loss Tangent," Energies, MDPI, vol. 15(8), pages 1-16, April.
    12. Maciej Zdanowski, 2022. "Streaming Electrification of C 60 Fullerene Doped Insulating Liquids for Power Transformers Applications," Energies, MDPI, vol. 15(7), pages 1-14, March.
    13. Miloš Šárpataky & Juraj Kurimský & Michal Rajňák & Michal Krbal & Marek Adamčák, 2022. "Dielectric Performance of Natural- and Synthetic-Ester-Based Nanofluids with Fullerene Nanoparticles," Energies, MDPI, vol. 16(1), pages 1-15, December.
    14. Łukasz Nagi & Mateusz Bogacz, 2023. "Statistical Analysis of Breakdown Voltage of Insulating Liquid Dopped with Surfactants," Energies, MDPI, vol. 16(3), pages 1-23, January.
    15. Fatih Atalar & Aysel Ersoy & Pawel Rozga, 2022. "Investigation of Effects of Different High Voltage Types on Dielectric Strength of Insulating Liquids," Energies, MDPI, vol. 15(21), pages 1-25, October.
    16. Tomasz N. Kołtunowicz & Konrad Kierczynski & Pawel Okal & Aleksy Patryn & Miroslav Gutten, 2022. "Diagnostics on the Basis of the Frequency-Temperature Dependences of the Loss Angle Tangent of Heavily Moistured Oil-Impregnated Pressboard," Energies, MDPI, vol. 15(8), pages 1-14, April.
    17. Piotr Przybylek, 2022. "Application of Near-Infrared Spectroscopy to Measure the Water Content in Liquid Dielectrics," Energies, MDPI, vol. 15(16), pages 1-11, August.
    18. Bartlomiej Pasternak & Pawel Rozga, 2023. "Influence of Dielectric Liquid Type on Partial-Discharge Inception Voltage in Oil-Wedge-Type Insulating System under AC Stress," Energies, MDPI, vol. 16(2), pages 1-11, January.
    19. Hubert Moranda & Jaroslaw Gielniak & Ireneusz Kownacki, 2021. "Assessment of Concentration of Mineral Oil in Synthetic Ester Based on the Density of the Mixture and the Capacitance of the Capacitor Immersed in It," Energies, MDPI, vol. 14(7), pages 1-12, March.
    20. Alexander S. Karandaev & Igor M. Yachikov & Andrey A. Radionov & Ivan V. Liubimov & Nikolay N. Druzhinin & Ekaterina A. Khramshina, 2022. "Fuzzy Algorithms for Diagnosis of Furnace Transformer Insulation Condition," Energies, MDPI, vol. 15(10), pages 1-21, May.

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:gam:jeners:v:15:y:2022:i:17:p:6393-:d:904178. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: MDPI Indexing Manager (email available below). General contact details of provider: https://www.mdpi.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.