Please use this identifier to cite or link to this item: http://dx.doi.org/10.18419/opus-14890
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dc.contributor.authorBeura, Chandra Prakash-
dc.contributor.authorBeltle, Michael-
dc.contributor.authorWenger, Philipp-
dc.contributor.authorTenbohlen, Stefan-
dc.date.accessioned2024-08-28T14:20:53Z-
dc.date.available2024-08-28T14:20:53Z-
dc.date.issued2022de
dc.identifier.issn1996-1073-
dc.identifier.other1901904733-
dc.identifier.urihttp://nbn-resolving.de/urn:nbn:de:bsz:93-opus-ds-149095de
dc.identifier.urihttp://elib.uni-stuttgart.de/handle/11682/14909-
dc.identifier.urihttp://dx.doi.org/10.18419/opus-14890-
dc.description.abstractUltra-high-frequency (UHF) partial discharge (PD) monitoring is gaining popularity because of its advantages over electrical methods for onsite/online applications. One such advantage is the possibility of three-dimensional PD source localization. However, it is necessary to understand the signal propagation and attenuation characteristics in transformers to improve localization. Since transformers are available in a wide range of ratings and geometric sizes, it is necessary to ascertain the similarities and differences in UHF signal characteristics across the different designs. Therefore, in this contribution, the signal attenuation and propagation characteristics of two 300 MVA transformers are analyzed and compared based on experiments. The two transformers have the same rating but different internal structures. It should be noted that the oil is drained out of the transformers for these tests. Additionally, a simulation model of one of the transformers is built and validated based on the experimental results. Subsequently, a simulation model is used to analyze the electromagnetic wave propagation inside the tank. Analysis of the experimental data shows that the distance-dependent signal attenuation characteristics are similar in the case of both transformers and can be well represented by hyperbolic equations, thus indicating that transformers with the same rating have similar attenuation characteristics even if they have different internal structures.en
dc.language.isoende
dc.relation.uridoi:10.3390/en15082766de
dc.rightsinfo:eu-repo/semantics/openAccessde
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/de
dc.subject.ddc620de
dc.titleExperimental analysis of ultra-high-frequency signal propagation paths in power transformersen
dc.typearticlede
dc.date.updated2023-11-14T02:07:58Z-
ubs.fakultaetInformatik, Elektrotechnik und Informationstechnikde
ubs.institutInstitut für Energieübertragung und Hochspannungstechnikde
ubs.publikation.seiten15de
ubs.publikation.sourceEnergies 15 (2022), No. 2766de
ubs.publikation.typZeitschriftenartikelde
Appears in Collections:05 Fakultät Informatik, Elektrotechnik und Informationstechnik

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