Dissolved gas analysis of alternative dielectric fluids under thermal and electrical stress

Author

Jovalekic, M. ; Vukovic, D. ; Tenbohlen, S.

Author_Institution

Inst. of Power Transm. & High Voltage Technol. (IEH), Univ. of Stuttgart, Stuttgart, Germany

fYear

2011

fDate

26-30 June 2011

Firstpage

1

Lastpage

4

Abstract

Dissolved gas in oil analysis (DGA) has been used for many years successfully for diagnosis and condition monitoring of mineral oil filled transformers. In future the diagnostic methods have to be transferred to new fluids. This contribution presents results of the gassing behavior of different insulating liquids from experiments, which represent electrical and thermal faults. Also the suitability of existing mineral oil interpretation methods for DGA is considered. The main investigated fluid is Envirotemp^® FR3™. Where possible the amount and relation of the gases are compared to mineral oil and other synthetic esters gassing behaviour.

Keywords

chemical analysis; condition monitoring; dissolving; fault diagnosis; minerals; power transformer insulation; thermal stresses; transformer oil; DGA; condition monitoring; diagnostic methods; dielectric fluids; dissolved gas analysis; electrical stress; insulating liquids; mineral oil; oil analysis; synthetic esters; thermal stress; transformers oil; Discharges; Gases; Generators; Minerals; Power transformers; Transformer oil; dissolved gas analysis; natural ester;

fLanguage

English

Publisher

ieee

Conference_Titel

Dielectric Liquids (ICDL), 2011 IEEE International Conference on

Conference_Location

Trondheim

ISSN

2153-3725

Print_ISBN

978-1-4244-7352-6

Electronic_ISBN

2153-3725

Type

conf

DOI

10.1109/ICDL.2011.6015457

Filename

6015457