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The paper presents the research results on electrostatic charging tendency (ECT) of transformer oil in a spinning disk system. The measurements were performed at different aging severity. Changes in static electrification were related to some classical aging indexes (conductivity, dissipation factor, water content, resistivity, etc.). Fast, inexpensive and reliable laboratory testing procedures developed...
The present paper is devoted to the study of the Electrostatic Charging Tendency (ECT) of fresh (unused) and aged transformer oils using a spinning disk system. A series of experiments were conducted under laboratory controlled conditions. The monitored parameters (conductivity, dissipation factor, water content, dissolved decay products, resistivity, turbidity ...) show that the electrification currents...
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