SF6 breakdown in GIS
| Autor: | L.C. Campbell, K. Tekletsadik |
|---|---|
| Rok vydání: | 1996 |
| Předmět: | |
| Zdroj: | IEE Proceedings - Science, Measurement and Technology. 143:270-276 |
| ISSN: | 1359-7094 1350-2344 |
| DOI: | 10.1049/ip-smt:19960546 |
| Popis: | SF/sub 6/ gas breakdown and spacer surface flashover volt-time characteristic curves were established for a GIS of D/d=55/25 (15 mm gap) and D/d=45/25 (10 mm gap) for 1.2/50, 0.5/50, 0.2/50 and osc/50 (1.64 MHz) /spl mu/s impulse and disconnector induced VFT voltages. VFT volt-time curves established using actual breakdown voltages against actual time to breakdown were found to give a better representation of the dielectric performance, and thus are recommended for future applications. Highly inhomogeneous field geometries, such as particle contaminated gaps, caused downward turning of the v-t curves during VFT breakdowns at short times to breakdown. |
| Databáze: | OpenAIRE |
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