Study on charge behavior in flowing transformer oil/pressboard composite insulation system using electro-optic field measurement

Author

Kato, K. ; Hashiba, Y. ; Nakagami, Y. ; Miyamoto, M. ; Okubo, H.

Author_Institution

Nagoya Univ., Japan

fYear

1999

fDate

1999

Firstpage

349

Lastpage

352

Abstract

In this paper, we measured the electric field in transformer oil/pressboard composite system, using a Kerr electro-optic method to discuss the electric field distribution and charge behavior induced by flow electrification. We investigated electric field in both uncharged and charged oil, under different flowing conditions. From the experiments, we could quantitatively estimate and analyze the time transition of electric field by charge accumulation on the pressboard. Finally, we propose a charge behavior model in flowing transformer oil

Keywords

Kerr electro-optical effect; composite insulating materials; electric fields; electrohydrodynamics; insulation testing; surface charging; transformer oil; Kerr electro-optic method; charge accumulation; charge behavior; charged oil; electric field; electric field distribution; electro-optic field measurement; flow electrification; flowing transformer oil; flowing transformer oil/pressboard composite insulation system; uncharged oil; Charge measurement; Current measurement; Dielectrics and electrical insulation; Electric variables measurement; Electrodes; Fluid flow measurement; Oil insulation; Petroleum; Power transformer insulation; Testing;

fLanguage

English

Publisher

ieee

Conference_Titel

Dielectric Liquids, 1999. (ICDL '99) Proceedings of the 1999 IEEE 13th International Conference on

Conference_Location

Nara

Print_ISBN

0-7803-4759-5

Type

conf

DOI

10.1109/ICDL.1999.798943

Filename

798943