Influence of sort and thickness of insulating barriers on the positive impulse creepage discharge in transformer oil

Author

Nakao, Y. ; Naruse, Masato ; Suzuki, Yuya ; Itoh, Hayato ; Sakai, Y. ; Tagashira, H.

Author_Institution

Dept. of Electr. & Electron. Eng., Muroran Inst. of Technol., Japan

fYear

1996

fDate

15-19 Jul 1996

Firstpage

316

Lastpage

319

Abstract

The propagation aspects of a creepage discharge in transformer oil have been observed in detail under a positive impulse voltage condition, by means of a high-speed Schlieren optical system, a LED current measurement system and a charge quantity measurement method using a condenser. In the present paper especially the influence of the sort and the thickness of insulating barriers in a point-plane electrode geometry, and of the electric field direction to the barrier surface in a parallel plane electrode gap with protruding point, on the propagation of the creepage discharge, is discussed

Keywords

discharges (electric); transformer oil; LED current measurement; charge quantity measurement; condenser; creepage discharge; electric field; high-speed Schlieren optical system; insulating barrier; parallel plane electrode gap; point-plane electrode; positive impulse voltage; transformer oil; Charge measurement; Current measurement; Dielectrics and electrical insulation; Electrodes; Geometrical optics; High speed optical techniques; Light emitting diodes; Oil insulation; Optical propagation; Power transformer insulation;

fLanguage

English

Publisher

ieee

Conference_Titel

Conduction and Breakdown in Dielectric Liquids, 1996, ICDL '96., 12th International Conference on

Conference_Location

Roma

Print_ISBN

0-7803-3560-0

Type

conf

DOI

10.1109/ICDL.1996.565494

Filename

565494