Particle tracing modelling on moisture dynamics of oil-impregnated transformer

Cui, Yi, Ma, Hui, Saha, Tapan, Ekanayake, Chandima and Martin, Daniel (2016) Particle tracing modelling on moisture dynamics of oil-impregnated transformer. IET Science, Measurement and Technology, 10 4: 335-343. doi:10.1049/iet-smt.2015.0196


Author Cui, Yi
Ma, Hui
Saha, Tapan
Ekanayake, Chandima
Martin, Daniel
Title Particle tracing modelling on moisture dynamics of oil-impregnated transformer
Journal name IET Science, Measurement and Technology   Check publisher's open access policy
ISSN 1751-8822
1751-8830
Publication date 2016-02-15
Year available 2016
Sub-type Article (original research)
DOI 10.1049/iet-smt.2015.0196
Open Access Status Not Open Access
Volume 10
Issue 4
Start page 335
End page 343
Total pages 9
Place of publication Stevenage, Herts, United Kingdom
Publisher The Institution of Engineering and Technology
Collection year 2017
Language eng
Abstract An accurate estimation of moisture in oil-impregnated cellulose of a transformer is difficult due to the complex moisture dynamics inside the transformer, which is highly influenced by the temperature and dimension of the transformer. In this study, a novel particle tracing method is proposed for estimating the moisture in transformers. Different from the conventional approaches using Fick's diffusion law, the proposed method formulates moisture diffusion from a microscopic view of water particles’ motion. Especially, the transmission probability of water particles is employed to correlate the microscopic particles’ motion with the macroscopic moisture distribution. The proposed particle tracing method is applied to model moisture dynamics in both pressboard specimens and a prototype transformer. Extensive moisture diffusion and ageing experiments are carried out to verify the proposed method.
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: HERDC Pre-Audit
School of Information Technology and Electrical Engineering Publications
 
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Created: Mon, 22 Feb 2016, 13:55:14 EST by Dr Hui Ma on behalf of School of Information Technol and Elec Engineering