Aging effects on transformer oil mixtures

Author

Elshazly-Zaghloul, M. ; Badawy, B.A. ; El-Meligy, A.

Author_Institution

Dept. of Electr. Eng., Cairo Univ., Egypt

fYear

1990

fDate

28-31 Oct 1990

Firstpage

660

Lastpage

666

Abstract

The authors present results of an extensive experimental study to investigate aging effects on transformer oil mixtures (TOMs). Accelerated aging was applied to TOM samples of different relative volumetric percentages using different doses of γ-irradiation. The electrical and physical properties of a variety of samples were measured, e.g., dielectric strength, dielectric loss, specific gravity, viscosity, and flash point. Also, a gas analysis was carried out to compare with the actual aging situation. A comprehensive analysis of the results is presented, indicating the aging effects on the TOMs

Keywords

ageing; dielectric losses; electric strength; gamma-ray effects; insulating oils; insulation testing; transformer insulation; γ-irradiation; TOM; aging effects; dielectric loss; dielectric strength; flash point; gas analysis; specific gravity; transformer oil mixtures; viscosity; volumetric percentages; Accelerated aging; Dielectric breakdown; Dielectric loss measurement; Dielectric losses; Dielectric measurements; Electric variables measurement; Gravity; Loss measurement; Oil insulation; Viscosity;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Insulation and Dielectric Phenomena, 1990. Annual Report., Conference on

Conference_Location

Pocono Manor, PA

Type

conf

DOI

10.1109/CEIDP.1990.201413

Filename

201413