Condition and life assessment of transformers using chemical analysis methods

Author

Amrollahi, M.H. ; Sarem, Y. Najafi ; Rezvantalab, S. ; Masoumi, R. ; Malekshah, M. Babanejad ; Rad, Shokoofeh Mounesi

Author_Institution

Electr. Eng. Dept., Urmia Univ. of Technol.(UUT), Urmia, Iran

fYear

2010

fDate

14-16 June 2010

Firstpage

298

Lastpage

302

Abstract

The present paper is devoted to evaluation of transformers ageing. In this work 100 set transformers have been selected in order to take samples from transformer´s oil. By direct measuring of deterioration of paper insulation (degree of de-polymerization) and deterioration by-products in oil, insulating papers condition have been studied. Transformer ageing has simulated with an appropriate model based on dissolved gas and furan content in order to evaluation of aging.

Keywords

chemical analysis; power transformers; remaining life assessment; chemical analysis methods; degree of depolymerization; dissolved gas; furan content; life assessment; paper insulation; transformers ageing; Aging; Chemical analysis; Degradation; Dielectrics and electrical insulation; Moisture; Oil insulation; Petroleum; Power transformer insulation; Power transformers; Thermal stresses; de-polymerization and furan derivate; transformer´s oil; transformers age reminding;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Electrical Drives Automation and Motion (SPEEDAM), 2010 International Symposium on

Conference_Location

Pisa

Print_ISBN

978-1-4244-4986-6

Electronic_ISBN

978-1-4244-7919-1

Type

conf

DOI

10.1109/SPEEDAM.2010.5545108

Filename

5545108