Extinguishing chamber of magnetic blow-out type for an electrical breaking device and electrical breaking device equipped with such a chamber
US11664175B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 5, 2021 |
| Grant date | May 30, 2023 |
| Priority date | — |
| Expiry date | Feb 5, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H73/18
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An extinguishing chamber of magnetic blow-out type for a breaking device includes a field source, a magnetic carcass and a breaking region, in which an electric arc is liable to form when a breaking pole belonging to the breaking device is opened. The field source is arranged to generate a magnetic field intended to move the electric arc in order to stretch it and accelerate its cooling and its extinguishing. The carcass is arranged to channel the magnetic field. The carcass is stood up against the field source and closes in front thereof so as to create an air gap in the magnetic circuit formed by the field source and the carcass and to thus maximize the magnetic field that passes through the breaking region.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.