Criteria for the diagnostic of polluted ceramic insulators based on the leakage current monitoring technique

Étude temporelle et fréquentielle du courant de fuite des isolateurs de poste recouverts de glace en vue du développement d'un système de surveillance et de prédiction en temps réel du contournement électrique /

“…II existe plusieurs techniques de mesure et de surveillance du courant de faite des isolateurs sous conditions de pollution qui sont actuellement utilisées autant dans les laboratoires de recherche que dans l'industrie [86]- [94]. La structure systématique générale du système de mesure du courant de faite est illustrée à la …”

Rate of energy absorption as indicator for the tracking/erosion test of silicone rubber

“…A number of studies have demonstrated that, for ceramic insulators, the leakage current could be used to provide an indication of insulator condition [9][10][11][12]. In an investigation of leakage current behavior on naturally aged polymeric insulators [13], leakage current levels were measured during steam fog tests on a number of naturally aged silicone rubber and EPDM insulators.…”

Evaluating the contamination level of polluted insulators based on the characteristics of leakage current

“…In contrast, the LC method is the comprehensive reflection of contamination, environmental factors, and voltage and can provide more effective information indicating the operating state of insulators; moreover, it is easy to be monitored online continuously [4]. Hence, the LC method has attracted more researchers' attention in recent years [5][6][7][8][9][10][11][12][13][14][15][16][17][18][19].The past studies have greatly pushed ahead the development of researches on the characteristics of LC and the methods of contamination level prediction [5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23]. However, the researches on the wellrecognized characteristic parameters of LC to assess the contamination level have not been performed.…”

“…In contrast, the LC method is the comprehensive reflection of contamination, environmental factors, and voltage and can provide more effective information indicating the operating state of insulators; moreover, it is easy to be monitored online continuously [4]. Hence, the LC method has attracted more researchers' attention in recent years [5][6][7][8][9][10][11][12][13][14][15][16][17][18][19].…”

“…The past studies have greatly pushed ahead the development of researches on the characteristics of LC and the methods of contamination level prediction [5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23]. However, the researches on the wellrecognized characteristic parameters of LC to assess the contamination level have not been performed.…”