Distribution transformers performance

Author

Cardoso, B.P. ; de Salles, C. ; Martinez, M.L.B. ; De Oliveira, H. R P M

Author_Institution

Fed. Univ. of Itajuba, Itajuba

fYear

2005

fDate

27-30 June 2005

Firstpage

1

Lastpage

6

Abstract

This paper present the results of a survey of load, no-load losses and dielectric strength of 123 new and repaired distribution transformers tested by the High Voltage Laboratory of the Federal University of Itajuba within a Research and Development Project in partnership with the AES-SUL - Distribuidora Gaucha de Energia S.A.. Based on these results were defined transformer efficiency curves. These curves were compared with the European Standard PROPHET, in order of supplying data to evaluate the possibilities of reduction of losses of the distribution transformers manufactured in Brazil. The results show the necessity of a new evaluation of the Brazilian National Transformer Standards and support the claim for a rigorous quality control of the manufacturing process of distribution transformers.

Keywords

losses; power transformers; quality control; Brazil; European Standard PROPHET; High Voltage Laboratory; National Transformer Standards; distribution transformers; loss reduction; manufacturing process; quality control; transformer efficiency curves; Circuit testing; Impulse testing; Laboratories; Lightning; Magnetic losses; Magnetization; Manufacturing; Medium voltage; Research and development; Transformers; Distribution Transformers; Efficiency; Losses;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Tech, 2005 IEEE Russia

Conference_Location

St. Petersburg

Print_ISBN

978-5-93208-034-4

Electronic_ISBN

978-5-93208-034-4

Type

conf

DOI

10.1109/PTC.2005.4524686

Filename

4524686