Numerical investigation of mechanical and thermal dynamic properties of the industrial transformer

Liu, HuaShu, Ma, Lin, Gu, YuanTong, & Nielsen, Shawn (2014) Numerical investigation of mechanical and thermal dynamic properties of the industrial transformer. International Journal of Computational Methods (IJCM), 11(Supp 1), p. 1344012.

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Abstract

Industrial transformer is one of the most critical assets in the power and heavy industry. Failures of transformers can cause enormous losses. The poor joints of the electrical circuit on transformers can cause overheating and results in stress concentration on the structure which is the major cause of catastrophic failure. Few researches have been focused on the mechanical properties of industrial transformers under overheating thermal conditions. In this paper, both mechanical and thermal properties of industrial transformers are jointly investigated using Finite Element Analysis (FEA). Dynamic response analysis is conducted on a modified transformer FEA model, and the computational results are compared with experimental results from literature to validate this simulation model. Based on the FEA model, thermal stress is calculated under different temperature conditions. These analysis results can provide insights to the understanding of the failure of transformers due to overheating, therefore are significant to assess winding fault, especially to the manufacturing and maintenance of large transformers.

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ID Code: 70995
Item Type: Journal Article
Refereed: Yes
Keywords: Transformer, thermal analysis, dynamic response, FEA
DOI: 10.1142/S021987621344012X
ISSN: 0219-8762
Subjects: Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > ELECTRICAL AND ELECTRONIC ENGINEERING (090600) > Power and Energy Systems Engineering (excl. Renewable Power) (090607)
Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > MECHANICAL ENGINEERING (091300) > Numerical Modelling and Mechanical Characterisation (091307)
Divisions: Current > Schools > School of Chemistry, Physics & Mechanical Engineering
Current > Schools > School of Electrical Engineering & Computer Science
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Copyright Owner: Copyright 2014 World Scientific Publishing Company
Deposited On: 05 May 2014 00:47
Last Modified: 12 Mar 2015 10:44

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