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The objective of our study is to analyse the ac applied voltage signals recorded for different pollution levels using a following technique: wavelet packet analysis. Laboratory tests were performed on flat plate models of glass (500×500×5 mm) under uniform pollution. The plate models were sprayed with a solution prepared by mixing 100 g of kaolin in one liter of distilled water. An appropriate amount...
In this work, the electric discharges activity on non-uniformly polluted glass plane insulator model is investigated for increasing applied voltage levels up to flashover. The effect of pollution severity was simulated using pollution solution containing various kaolin concentrations. The polluted sample has a strip that is dry and clean which is parallel to the electrodes planes. Configurations with...
This paper presents a work devoted to the impact study of the pollution severity on the energy level dissipated on high voltage insulator. The experimental tests were carried out on a plane model (500×500×5 mm3) simulating the standard insulator PSV 120 B. This one is largely used by the Algerian company of electricity and gas (SONELGAZ). The laboratory tests concern the measurement of the cumulative...
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