Cutoff device for high-DC-voltage electric current with plasma tube
US12283809B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 31, 2022 |
| Grant date | Apr 22, 2025 |
| Priority date | — |
| Expiry date | Apr 25, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02H3/202
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A DC high voltage cut-off device includes at least one cut-off module, having: a main cut-off apparatus in a main branch, a general surge protector in an absorption branch, and a changeover branch, with at least one changeover capacitor wherein: a first plasma tube switch in the changeover branch, a pre-charge circuit of the changeover capacitor, a changeover surge protector, in parallel with the changeover capacitor, and having a protection voltage lower than a nominal operating voltage of the cut-off module and, by at least one pilotable switch which supplies the first plasma tube switch with a voltage derived from an electric voltage between the armatures of the changeover capacitor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.