Title :
Conduction current-stress characteristics of mineral oil under the effect of electronegative dissolved gases
Author :
Mufti, A.H. ; Arafa, A.O.
Author_Institution :
Dept. of Electr. & Comput. Eng., King Abdulaziz Univ., Jeddah, Saudi Arabia
Abstract :
The effect of dissolved electronegative gases (SF6, C 8F16O, C8F18 and C2 Cl3F3) on the dielectric strength of transformer mineral oil is investigated. The conduction current-stress characteristics are studied in this experimental work. The results show that the dissolved electronegative gases exhibit a reduction in the conduction current level. The perfluorocarbon dissolved gases show a relatively lower current level than that of SF6 and SF6 /N2 mixture. The C8F16O/N2 mixture exhibits a reduction in the conduction current level
Keywords :
electric breakdown; electric strength; insulation testing; power transformer insulation; power transformer testing; transformer oil; C2Cl3F3; C8F16O; C8F16O/N2 mixture; C8F18; SF6; SF6-N2; SF6/N2 mixture; conduction current level reduction; conduction current-stress characteristics; dielectric strength; electronegative dissolved gases; perfluorocarbon dissolved gases; transformer mineral oil; Dielectric breakdown; Dielectric liquids; Gases; Minerals; Oil insulation; Petroleum; Pulse transformers; Stress; Sulfur hexafluoride; Testing;
Conference_Titel :
Conduction and Breakdown in Dielectric Liquids, 1996, ICDL '96., 12th International Conference on
Conference_Location :
Roma
Print_ISBN :
0-7803-3560-0
DOI :
10.1109/ICDL.1996.565441
