Flashover phenomenon: an analysis with influence of the thickness of the layer pollution of the high voltage polluted insulators
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Data
1994-12-01
Autores
Astorga, Oscar Armando Maldonado [UNESP]
do Prado, Afonso Jose [UNESP]
Título da Revista
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Título de Volume
Editor
Institute of Electrical and Electronics Engineers (IEEE)
Resumo
Results of the analysis of dynamic behavior of flashover phenomenon on the high voltage-polluted insulators are presented. These results were taken from a mathematical and an experimental model that introduce the variable thickness influence of the layer pollution deposited on the high-voltage insulator surface. Analysis of the flashover was done by way of introducing a variation in the thickness of the channel of Obenaus' model, simulating a layer pollution of variable thickness. The objective was to obtain a better reproduction of the real layer pollution deposited on the insulator that works in the polluted regions. Two types of thickness variations were used: a sudden variation, using a step; and a soft variation, using a ramp; that were put along the way of the discharge. Comparison between the mathematical and experimental models showed that introduction of a ramp makes Obenaus' model more efficient in analyzing behavior of flashover phenomenon.
Descrição
Palavras-chave
Algorithms, Computer simulation, Electric discharges, Equivalent circuits, Geometry, Mathematical models, Flashover phenomenon, High voltage polluted insulators, Obenaus model, Ramp, Step, Voltage polarity, Electric insulators
Como citar
Conference Record of IEEE International Symposium on Electrical Insulation, p. 546-549.