Title :
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
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;
Conference_Titel :
Electrical Insulation and Dielectric Phenomena, 1990. Annual Report., Conference on
Conference_Location :
Pocono Manor, PA
DOI :
10.1109/CEIDP.1990.201413
