Improved insert geometry for reducing tank wall

Juan Carlos Olivares, Rafael Escarela-Pérez, S. V. Kulkarni, Francisco De León, Enrique Melgoza, O. Hernandez, Juan Olivares

Research output: Chapter in Book/Report/Conference proceedingConference contribution


This paper presents a numerical analysis of losses generated in the tank wall surrounding the high-current bushings of pad-mounted transformers using a three-dimensional finite-element approach. Two cases are analyzed to study the impact of inserting small plates of different geometry (located near the high-current phases) on the reduction of tank losses. Significant reductions in stray losses occurring in the tank wall are obtained with plate inserts of low-cost. With the "T" configuration proposed in this paper we reduce the tank wall losses by a factor of 1/21 at rated current when compared with the case of tank wall without the stainless steel plate. A three-dimensional time-harmonic finite-element model is used to determine the losses in the tank wall. Two load loss tests were carried out on experimental transformers to validate the simulations and effectiveness of the low-cost inserts.

Original languageEnglish (US)
Title of host publication2004 IEEE Power Engineering Society General Meeting
Number of pages1
StatePublished - 2004
Event2004 IEEE Power Engineering Society General Meeting - Denver, CO, United States
Duration: Jun 6 2004Jun 10 2004

Publication series

Name2004 IEEE Power Engineering Society General Meeting


Other2004 IEEE Power Engineering Society General Meeting
Country/TerritoryUnited States
CityDenver, CO

ASJC Scopus subject areas

  • General Engineering


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