The influence of a conducting particle on a spacer on the insulation properties in SF6/N2 mixtures

The flashover behaviour of a spacer sample with a conducting particle on the surface was investigated for several SF6/N2 mixtures with SF6 content up to 30%. LI 1.2/50 μs and AC 50 Hz were used to stress the setup. The gas pressure ranged from 100 to 600 kPa. The particle was 0.25 mm in diameter wit...

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Hauptverfasser:	Imano, A.M, Schurer, R, Feser, K
Format:	Tagungsbericht
Sprache:	eng
Schlagworte:	Electric discharges Electrical properties (ionization, breakdown, electron and ion mobility, etc.) Exact sciences and technology Gaseous insulation, breakdown and discharges Inorganic insulation Manufacturing processes Physics Physics of gases Physics of gases, plasmas and electric discharges Physics of plasmas and electric discharges Production facilities and engineering Testing
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Zusammenfassung:	The flashover behaviour of a spacer sample with a conducting particle on the surface was investigated for several SF6/N2 mixtures with SF6 content up to 30%. LI 1.2/50 μs and AC 50 Hz were used to stress the setup. The gas pressure ranged from 100 to 600 kPa. The particle was 0.25 mm in diameter with a length of 2 to 8.5 mm. The spacer sample was 25 mm in diameter and 45 mm in length and made out of epoxy resin filled with Al2O3. The results of the investigations show the influence of the particle length and the gas pressure on the flashover voltage for various SF6 contents of the mixtures. (4 pages)
ISSN:	0537-9989
DOI:	10.1049/cp:19990742