Transformers Magazine, Vol. 6 No. 5, 2019.
Original scientific paper
Utilization of dissipated heat of power transformers
Mislav Trbusic
; University of Maribor
Robert Marusa
; Slovenia’s Electric Power Transmission
Jože Pihler
; University of Maribor
Anton Hamler
; University of Maribor
Abstract
The aim of the article is to provide the reader with the basic concept of the transformer’s heat utilization where a proposed technical solution anticipates the installation of an additional oil-water heat exchanger (ODWF) in the transformer's cooling system. An increase in the transformer’s cooling capacity lowers the oil temperature and reduces the transformer’s loss of life expectancy. In order to estimate the transformer’s oil temperature profile, as well as the heat power potential at the water side of the ODWF cooler, a numerical investigation was performed on the 150 MVA 220 / 115 kV transformer unit which operates in Podlog substation in Slovenia.
Keywords
transformer; cooling; forced cooling; heat loss; loss of life expectancy
Hrčak ID:
228369
URI
Publication date:
21.11.2019.
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