Abstract
A high voltage gas blast circuit breaker relies on the high speed gas flow in a nozzle to remove the energy due to Ohmic heating at high current and to provide strong arc cooling during the current zero period to interrupt a fault current. The physical mechanisms that are responsible for the hugely di erent arc cooling capabilities of two gases (SF6 and air) are studied in the present work and important gas material properties controlling the cooling strength identified.
Original language | English |
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Pages | 234-240 |
Number of pages | 7 |
DOIs | |
Publication status | Published - 2017 |
Externally published | Yes |
Event | 22nd Symposium on Physics of Switching Arc, 2017 - Nove Mesto na Morave, Czech Republic Duration: 4 Sept 2017 → 8 Sept 2017 |
Conference
Conference | 22nd Symposium on Physics of Switching Arc, 2017 |
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Country/Territory | Czech Republic |
City | Nove Mesto na Morave |
Period | 4/09/17 → 8/09/17 |
Keywords
- SF6 alternative gases
- SF6 replacement
- Switching arc.