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The effect of ceria nanoparticles on the breakdown strength of transformer oil
RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Material och ytteknik.
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2015 (English)In: Proceedings of the IEEE International Conference on Properties and Applications of Dielectric Materials, Institute of Electrical and Electronics Engineers (IEEE), 2015, 289-292 p.Conference paper, Published paper (Refereed)
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Abstract [en]

Nanotechnologies have potential to be used in transformer industry in enhancing material properties which may lead to a compact design of transformer and reduced manufacturing cost. Effect of adding different nanoparticles such as titania, silica, nano-diamond, etc. has been studied in literatures. In this paper, nano-ceria particles have been successfully added into transformer mineral oil with different content. The suspension is very stable and no segmentation can be observed over several months. The ceria nanoparticles are commercially available, which have a quite narrow size distribution. UV-Vis, TGA and FT-IR are used to characterize the ceria nanofluids. The water content of the ceria nanofluids has been measured by Karl Fisher titration, which is important for the breakdown strength of transformer oil. AC voltage breakdown and lightning impulse voltage breakdown measurements have been performed on the ceria nanofluids. An enhancement of 15% on AC breakdown voltage has been observed on ceria nanofluids with some content compared to reference transformer oil. On the other hand, no clear difference on the lightning impulse breakdown voltage is observed between the ceria nanofluids and reference transformer oil.

Place, publisher, year, edition, pages
Institute of Electrical and Electronics Engineers (IEEE), 2015. 289-292 p.
Keyword [en]
ceria, dielectric breakdown, nanofluid, transformer
National Category
Other Chemistry Topics Other Electrical Engineering, Electronic Engineering, Information Engineering Materials Chemistry
Identifiers
URN: urn:nbn:se:ri:diva-143DOI: 10.1109/ICPADM.2015.7295265Scopus ID: 2-s2.0-84962538594ISBN: 9781479989034 (print)OAI: oai:DiVA.org:ri-143DiVA: diva2:933976
Conference
11th IEEE International Conference on the Properties and Applications of Dielectric Materials, ICPADM 2015, Sydney, Australia, July 19-22, 2015
Note

SP Chemistry, Materials and Surfaces publication nr: A3662

Available from: 2016-06-07 Created: 2016-06-07 Last updated: 2016-06-29Bibliographically approved

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CiteExportLink to record
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Citation style
  • apa
  • harvard1
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