Title :
Experimental observation on the charge density of transformer oil
Author :
Huang Yun-Jin ; Xiao-Chun, Chi ; Yang Jia-Xiang ; Yuan-Ji, He ; Ji, Liu
Author_Institution :
Dept. of Electr. Mater., Harbin Inst. of Electr. Technol., China
Abstract :
In this paper, the charge accumulation caused by oil flow electrification on the surface of insulating paper was observed, using an oil-paper pipe model. An absolute charge sensor (ACS) has been used for measuring the charge density in oil. The dependence of the charge density on the flow velocity and temperature are investigated. The effects of charge density on applied dc and ac voltage are obtained. The theoretical explanations are also presented to make these effects understood
Keywords :
pipe flow; power transformer insulation; surface charging; surface potential; transformer oil; absolute charge sensor; applied ac voltage; applied dc voltage; charge accumulation; charge density; flow velocity; insulating paper surface; oil flow electrification; oil-paper pipe model; transformer oil; Charge measurement; Current measurement; Density measurement; Electrodes; Hydrocarbon reservoirs; Measurement units; Oil insulation; Petroleum; Power transformer insulation; Temperature sensors;
Conference_Titel :
Electrical Insulation and Dielectric Phenomena, 1996., IEEE 1996 Annual Report of the Conference on
Conference_Location :
Millbrae, CA
Print_ISBN :
0-7803-3580-5
DOI :
10.1109/CEIDP.1996.564660
