Time Domain Diffusion-Driven Dielectric Response Model for Investigation of Moisture Dynamics in Transformers Insulation
Paper
Paper/Presentation Title | Time Domain Diffusion-Driven Dielectric Response Model for Investigation of Moisture Dynamics in Transformers Insulation |
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Presentation Type | Paper |
Authors | Cui, Yi (Author), Ma, Hui (Author), Saha, Tapan (Author), Ekanayake, Chandima (Author) and Martin, Daniel (Author) |
Journal or Proceedings Title | Proceedings of the 2015 IEEE Power and Energy Society General Meeting (PESGM) |
ERA Conference ID | 50486 |
Number of Pages | 5 |
Year | 2015 |
ISBN | 9781467380409 |
Digital Object Identifier (DOI) | https://doi.org/10.1109/PESGM.2015.7285860 |
Web Address (URL) of Paper | https://ieeexplore.ieee.org/document/7285860 |
Conference/Event | 2015 IEEE Power and Energy Society General Meeting (PESGM) |
IEEE Power and Energy Society General Meeting | |
Event Details | 2015 IEEE Power and Energy Society General Meeting (PESGM) Event Date 26 to end of 30 Jul 2015 Event Location Denver, United States |
Event Details | IEEE Power and Energy Society General Meeting PES-GM |
Abstract | In this paper a time domain diffusion-driven model is presented to investigate the correlation between the distribution of moisture during thermal transients, and the resultant polarization and depolarization current (PDC) measurement, for transformer cellulosic insulation. The oil-impregnated cellulosic insulation is modeled as being multiple layers of paper, with each layer having a different permittivity and conductivity. The non-uniform distribution of moisture occurring during diffusion was taken into consideration. The correlation between moisture concentration and conductivity of the cellulose insulation was investigated. Then, the dielectric response of the cellulose was computed and the dielectric relaxation behavior affected by the moisture dynamics was modelled. The moisture diffusion experiments were conducted on a test transformer to verify the proposed model. |
Keywords | Dielectric response; moisture diffusion; polarization; transformer insulation |
ANZSRC Field of Research 2020 | 400803. Electrical energy generation (incl. renewables, excl. photovoltaics) |
Public Notes | There are no files associated with this item. |
Byline Affiliations | University of Queensland |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q7w4w/time-domain-diffusion-driven-dielectric-response-model-for-investigation-of-moisture-dynamics-in-transformers-insulation
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