Dynamics of liquid and solid dielectrics: Extended lifespan with online dehydration system

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dc.contributor.authorBicen, Yunus
dc.date.accessioned2025-10-11T20:48:26Z
dc.date.available2025-10-11T20:48:26Z
dc.date.issued2025
dc.departmentDüzce Üniversitesien_US
dc.description.abstractThe life of the insulation in oil-immersed transformers is greatly shortened over time by the rise in moisture content if dehydration is not carried out when necessary. This study demonstrates the superior aspects of the online dehydration system in hermetically sealed and free-breathing transformers using Kraft and thermally upgraded Kraft paper as the main insulation material. Twenty separate scenarios have been investigated, each with its own unique combination of insulation type, temperature, moisture, and oxygen level. The results demonstrate that using online dehydration systems can significantly increase life expectancy. The insulation life of hermetically sealed transformers, for instance, is increased by 1.9 times at 110 degrees C and further at lower temperatures. Online methods outperform conventional dehydration systems in terms of prolonging the insulation's lifespan. Theoretically, offline (traditional) dehydration techniques can extend insulation life by 2.5 times, however, online dehydration systems can improve this rate by up to 7.43 times. Dehydration systems have been shown to significantly increase insulating lifespan, particularly in transformers operating at low temperatures. Also, thermally upgraded paper is more sensitive to dehydration processes than Kraft paper. Given all of these results, online dehydration technologies have the potential to significantly improve transformer durability and reliability.en_US
dc.identifier.doi10.1016/j.tsep.2025.103416
dc.identifier.issn2451-9049
dc.identifier.scopus2-s2.0-85218173043en_US
dc.identifier.scopusqualityN/Aen_US
dc.identifier.urihttps://doi.org/10.1016/j.tsep.2025.103416
dc.identifier.urihttps://hdl.handle.net/20.500.12684/21922
dc.identifier.volume60en_US
dc.identifier.wosWOS:001430467000001en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.institutionauthorBicen, Yunus
dc.language.isoenen_US
dc.publisherElsevieren_US
dc.relation.ispartofThermal Scienceand Engineering Progressen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.snmzKA_WOS_20250911
dc.subjectAgingen_US
dc.subjectDehydrationen_US
dc.subjectInsulation lifespanen_US
dc.subjectLife extensionen_US
dc.subjectReliabilityen_US
dc.subjectTransformeren_US
dc.subjectMoistureen_US
dc.titleDynamics of liquid and solid dielectrics: Extended lifespan with online dehydration systemen_US
dc.typeArticleen_US

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