Hybrid switch for substation and other applications and methods of operating same
US12072367B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 27, 2023 |
| Grant date | Aug 27, 2024 |
| Priority date | — |
| Expiry date | Jun 27, 2043 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B70/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An apparatus includes a mechanical switch and a solid-state switch, such as a diamond switch or antiparallel-connected thyristor pair, coupled in series between an AC source and the load, such as a substation input transformer. The control circuit may be configured to connect the AC power source to the load by closing the mechanical switch and turning on the solid-state switch thereafter. The control circuit may be configured to interrupt a connection of the AC source to the load by turning off the solid-state switch and closing the mechanical switch thereafter. Operations of the switches may be coordinated with a fuse coupled in series with the solid-state switch to address different types of fault conditions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.