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Corona discharge within organic oil insulations

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5 Author(s)
Josef Pihera ; Department of Technologies and Measurement, Faculty of Electrical Engineering, University of West Bohemia, Pilsen, Czech Republic ; Pavel Trnka ; Václav Mentlík ; Martin Širůček
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Presented experiment consists of laboratory testing of partial discharges activity in liquid insulating fluids. Corona discharges within different insulation fluids were measured accordingly. The trends of partial discharge main parameters are studied and described in dependence on liquid type and aging time. The studied oils were thermally aged at 90°C for 3000 hours in air atmosphere within special climatic oven. Corona discharges measurement was realized using a point/plane electrode configuration where the whole test set-up was completely immersed in tested oil to suppress ambient conditions.

Published in:

2011 IEEE International Conference on Dielectric Liquids

Date of Conference:

26-30 June 2011