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2D finite-element determination of tank wall losses in pad-mounted transformers

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Title 2D finite-element determination of tank wall losses in pad-mounted transformers
 
Creator OLIVARES, JC
ESCARELA-PEREZ, R
KULKARNI, SV
DE LEON, F
VENEGAS-VEGA, MA
 
Subject stray transformer losses
tank wall losses
low-voltage conductor
pad-mounted transformer
stainless-steel plate
finite element method
 
Description This paper presents a two-dimensional (2D) finite-element (FE) analysis of losses generated in the tank wall surrounding the high-current bushings of pad-mounted transformers. Although the problem is truly three-dimensional (3D), it is shown that a 2D approach gives results that closely agree with 3D simulations and experimental results. Thus, it is possible to avoid the very demanding computational resources required for 3D modeling or the cost of experiments. Nine cases are analyzed to study the impact of inserting small plates of different geometry (located near the high-current terminals) on the reduction of tank losses. Significant reductions in stray losses on the tank wall are obtained with low-cost plate inserts. 2D and 3D time-harmonic FE models are used to determine the losses in the tank wall. Two load loss tests were carried out on experimental transformers to validate the simulations. (C) 2004
 
Publisher ELSEVIER SCIENCE SA
 
Date 2011-07-27T14:15:57Z
2011-12-26T12:57:23Z
2011-12-27T05:39:29Z
2011-07-27T14:15:57Z
2011-12-26T12:57:23Z
2011-12-27T05:39:29Z
2004
 
Type Article
 
Identifier ELECTRIC POWER SYSTEMS RESEARCH, 71(2), 179-185
0378-7796
http://dx.doi.org/10.1016/j.epsr.2004.01.012
http://dspace.library.iitb.ac.in/xmlui/handle/10054/7245
http://hdl.handle.net/10054/7245
 
Language en