Article ID Journal Published Year Pages File Type
10406823 Journal of Electrostatics 2005 14 Pages PDF
Abstract
This paper presents a static electrification current signal analyzer used for measuring and processing of the variable component of the changes in electrostatic charge that occur on a solid-body/liquid boundary interface. Due to high sensitivity and low uncertainty, the analyzer allows a precise evaluation of the phenomenon generated. The device operates in a spinning-disk system. The tests carried out indicate that it is possible to measure random components which depend, to a large extent, on hydrodynamic conditions and on the properties of the liquid phase. The device can be applied to the testing of transformer oils. It can be also used for measurements of other liquids having low conductivity and a high tendency toward electrical charging (ECT). The results of oil testing indicate a significant influence of the processes of aging on random components of the electrification current.
Related Topics
Physical Sciences and Engineering Engineering Electrical and Electronic Engineering
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