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Superhydrophobic coatings for electrical insulators

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dc.contributor.authorVallabhuneni, Sravanthi, author
dc.contributor.authorKota, Arun K., advisor
dc.contributor.authorPopat, Ketul, committee member
dc.contributor.authorKipper, Matt J., committee member
dc.date.accessioned2018-06-12T16:14:04Z
dc.date.available2018-06-12T16:14:04Z
dc.date.issued2018
dc.description.abstractDielectric breakdown in electrical insulators is a frequently encountered phenomenon leading to surface damage, material loss and eventually a complete breakdown of electrical insulators. Dielectric breakdown is accelerated under severe conditions such as humidity and rain. As a result, the service life of the electrical insulators is affected. In our work, we employed superhydrophobic coatings, which are extremely repellent towards water, in an attempt to retain the dielectric strength of electric insulators in the presence of water. In addition, we studied the influence of surface roughness on the dielectric breakdown of electrical insulators. In this work, hydrophobic PDMS sheets (as a mimic to silicone bushings/insulators) with different surface roughness were fabricated and superhydrophobicity was imparted to these sheets via surface modification. The dielectric breakdown of these PDMS sheets was studied under both dry and wet conditions. The influence of surface roughness on the dielectric breakdown was also investigated by using PDMS sheets with different surface roughness. We noticed an increase in surface roughness leads to lower dielectric breakdown. Further, we demonstrated that superhydrophobic coatings on the surface of electrical insulators allow the retention of dielectric strength under wet conditions. Consequently, we envision that superhydrophobic coatings on electrical insulators will lead to enhanced performance and prolonged service life of insulators.
dc.format.mediumborn digital
dc.format.mediummasters theses
dc.identifierVallabhuneni_colostate_0053N_14728.pdf
dc.identifier.urihttps://hdl.handle.net/10217/189348
dc.languageEnglish
dc.language.isoeng
dc.publisherColorado State University. Libraries
dc.relation.ispartof2000-2019
dc.rightsCopyright and other restrictions may apply. User is responsible for compliance with all applicable laws. For information about copyright law, please see https://libguides.colostate.edu/copyright.
dc.subjectdielectric strength
dc.subjectsuperhydrophobic
dc.subjectelectrical insulators
dc.subjectcoatings
dc.titleSuperhydrophobic coatings for electrical insulators
dc.typeText
dcterms.rights.dplaThis Item is protected by copyright and/or related rights (https://rightsstatements.org/vocab/InC/1.0/). You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s).
thesis.degree.disciplineMechanical Engineering
thesis.degree.grantorColorado State University
thesis.degree.levelMasters
thesis.degree.nameMaster of Science (M.S.)

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