Title :
Charge behavior in flowing oil at oil/pressboard interface by electro-optic field measurement
Author :
Okubo, H. ; Inoue, N. ; Wakamatsu, M. ; Kato, K. ; Shimizu, R. ; Nakagami, Y.
Author_Institution :
Nagoya Univ., Japan
Abstract :
In this paper, the authors directly measure the electric field strength in an oil/pressboard composite insulation system using an electro-optic method of Kerr effect. They investigate electric field distribution in both flowing uncharged and charged oil by flow electrification. From the measurement results, they quantitatively discuss the electric field distribution and the charge behavior.
Keywords :
composite insulating materials; electric breakdown; electric field measurement; electric fields; insulation testing; power transformer insulation; power transformer testing; space charge; transformer oil; Kerr effect; charge behavior; electric field strength; electro-optic measurement method; flow electrification; flowing charged oil; flowing uncharged oil; oil-immersed power transformers; oil/pressboard composite insulation system; transformer insulation breakdown testing; Charge measurement; Current measurement; Dielectrics and electrical insulation; Electric variables measurement; Electrodes; Kerr effect; Oil insulation; Petroleum; Power transformer insulation; Power transformers;
Conference_Titel :
Dielectric Liquids, 2002. ICDL 2002. Proceedings of 2002 IEEE 14th International Conference on
Print_ISBN :
0-7803-7350-2
DOI :
10.1109/ICDL.2002.1022723
