Surge protection device having a plurality of surge arresters and, in particular thermal, isolating apparatus which is respectively associated with them
US11295914B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 15, 2019 |
| Grant date | Apr 5, 2022 |
| Priority date | — |
| Expiry date | Oct 15, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2037/762
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An overvoltage protection device has a plurality of overvoltage arresters and a disconnecting apparatus. For each of the overvoltage arresters a blocking element is present, each of which is arranged so as to block the path of movement of a mechanically preloaded wedge slide having a wedge bevel. A rocker lever arrangement has first lever arms corresponding to the number of wedge slides and at least one second lever arm for blocking or releasing a displacement element, wherein ends of the first lever arms each have a surface for contacting the respective wedge bevel of the wedge slides in such a way that, when the respective path of movement is released, at least one of the wedge slides lifts the corresponding first lever arm with its wedge bevel, as a result of which the second lever arm releases the displacement element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.