Impulse creeping discharge characteristics in insulating oils with EHD function reinforced by added HFC gas components

Author

Hanaoka, R. ; Nakamichi, H. ; Takata, S. ; Koide, H. ; Hatta, Y.

Author_Institution

Dept. of Electr. & Electron. Eng., Kanazawa Inst. of Technol., Ishikawa, Japan

fYear

2005

Firstpage

169

Lastpage

172

Abstract

This paper describes the results obtained from the study on EHD pumping and dielectric strength in two oils, rape-seed ester oil and silicone oil, denatured by slightly added HFC134a gas components. It is shown that the insulation ability of denatured oils drops compared to that of standard oils, but the EHD pumping is reinforced significantly by the creation of bonding such as C-F and C-H in HFC gas. This EHD function may be utilized as a new cooling method in oil-filled power apparatuses in view of the dielectric strength.

Keywords

bonds (chemical); discharges (electric); drops; electric strength; electrohydrodynamics; insulating oils; silicone insulation; C-F bonds; C-H bonds; EHD pumping; HFC134a gas; cooling method; dielectric strength; insulation ability; rape-seed ester oil; silicone oil; Cooling; Dielectric breakdown; Dielectric liquids; Dielectrics and electrical insulation; Gas insulation; Hybrid fiber coaxial cables; Minerals; Oil insulation; Petroleum; Viscosity;

fLanguage

English

Publisher

ieee

Conference_Titel

Dielectric Liquids, 2005. ICDL 2005. 2005 IEEE International Conference on

Print_ISBN

0-7803-8954-9

Type

conf

DOI

10.1109/ICDL.2005.1490053

Filename

1490053