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Influence of Nanoparticles on the Degradation Processes of Ester-Based Transformer Insulation Systems

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dc.affiliation.dptoUC3M. Departamento de Ingeniería Eléctricaes
dc.affiliation.grupoinvUC3M. Grupo de Investigación: Diagnóstico de Máquinas Eléctricas y Materiales Aislantes (DIAMAT)es
dc.contributor.authorPérez Rosa, Daniel
dc.contributor.authorGarcía de Burgos, María Belén
dc.contributor.authorBurgos Díaz, Juan Carlos
dc.contributor.funderMinisterio de Economía y Competitividad (España)es
dc.contributor.funderMinisterio de Ciencia, Innovación y Universidades (España)es
dc.date.accessioned2022-06-24T08:27:50Z
dc.date.available2022-06-24T08:27:50Z
dc.date.issued2022-02-18
dc.description.abstractThe use of nanofluids as dielectric liquids for transformer insulation has been widely investigated during the last decade. A number of authors have performed extensive studies on liquids produced from different types of nanoparticles and base fluids, providing evidence of their good dielectric properties. Nevertheless, nanodielectric fluids are still at the research stage, and they are far from being a solution that can be applied to real transformers. One of the aspects that might be clarified is their compatibility with the rest of the materials present in the transformer and their behavior throughout the life of the equipment. This paper studies the aging process of cellulose impregnated with an ester-based nanofluid and compares it with the process that takes place when the impregnation liquid is a natural ester. Accelerated aging experiments were performed, and physical and chemical characterization of the process with several analytical techniques was carried out. The mechanical degradation of the cellulose was studied in terms of tensile strength, and the evolution of moisture in the paper and oil was monitored throughout the aging process. The study was completed with FTIR and XPS tests aimed at studying the chemical changes of the materials during the aging process. The experimental results suggest that the degradation rate of the cellulose is not significantly affected by the presence of nanoparticles. However, the XPS study revealed that the chemical reactions involved in the degradation processes of both types of insulation might differ. Several mechanisms are proposed in this work.en
dc.description.sponsorshipThis work was supported by the Spanish State Research Agency under grant PID2019- 107126RB-C21/ AEI/10.13039/501100011033 and by the Spanish Ministry of Economy and Competitiveness under grant DPI2015-71219-C2-2-R.en
dc.format.extent12
dc.identifier.bibliographicCitationPérez-Rosa, D., García, B., & Burgos, J. C. (2022). Influence of Nanoparticles on the Degradation Processes of Ester-Based Transformer Insulation Systems. In Energies, 15(4), 1520-1532en
dc.identifier.doihttps://doi.org/10.3390/en15041520
dc.identifier.issn1996-1073
dc.identifier.publicationfirstpage1520
dc.identifier.publicationissue4
dc.identifier.publicationlastpage1532
dc.identifier.publicationtitleEnergies (Energies)en
dc.identifier.publicationvolume15
dc.identifier.urihttps://hdl.handle.net/10016/35271
dc.identifier.uxxiAR/0000030315
dc.language.isoengen
dc.publisherMDPI AGen
dc.relation.projectIDGobierno de España. DPI2015-71219-C2-2-Res
dc.relation.projectIDGobierno de España. PID2019- 107126RB-C21/ AEI/10.13039/501100011033es
dc.rights© 2022 by the authors. Licensee MDPI, Basel, Switzerland.en
dc.rightsAtribución 3.0 España*
dc.rights.accessRightsopen accessen
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/es/*
dc.subject.ecienciaElectrónicaes
dc.subject.otherPower transformersen
dc.subject.otherDielectric nanofluidsen
dc.subject.otherOil-paper insulationen
dc.subject.otherCelluloseen
dc.subject.otherAgingen
dc.subject.otherNaturalen
dc.subject.otherEsteren
dc.subject.otherTensile strengthen
dc.subject.otherFtiren
dc.subject.otherXpsen
dc.titleInfluence of Nanoparticles on the Degradation Processes of Ester-Based Transformer Insulation Systemsen
dc.typeresearch article*
dc.type.hasVersionVoR*
dspace.entity.typePublication
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