Surge arresters and related assemblies and methods
US12191058B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 14, 2020 |
| Grant date | Jan 7, 2025 |
| Priority date | — |
| Expiry date | Jan 17, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01C17/00
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A surge arrester includes a polymer body including a first leg having a first channel defined therein and a second leg perpendicular to the first leg and having a second channel defined therein. A varistor assembly is in the first channel. The varistor assembly includes a plurality of varistor elements electrically connected in series and forming a stack of the plurality of varistor elements. The stack has a first end surface, a second end surface, and an outer side surface extending between the first end surface and the second end surface. The varistor assembly includes a first end fitting at the first end surface of the stack, a second end fitting at the second end surface of the stack, a plurality of rods disposed around the side surface of the stack, and a polymer fill layer between the side surface of the stack and the first leg of the body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.