Varistor with an isolating arrester
US10229774B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 13, 2016 |
| Grant date | Mar 12, 2019 |
| Priority date | — |
| Expiry date | Jul 13, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2235/01
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The subject matter of the invention concerns a varistor with an isolating arrester, wherein the isolating arrester can interrupt the flow of current through the varistor in the event of a fault, wherein the isolating arrester has a terminal contact that establishes an electrical contact to a first contact of the varistor, wherein the electrical contact is protected by a thermally softenable holding device, wherein the isolating arrester also has a detachment means which is biased by means of an energy accumulator and which, in the event of a fault, if the thermally softenable holding device softens, mechanically disconnects the terminal contact from the first contact of the varistor, and wherein the detachment means is embodied so as to be resistive in order to limit the current through the varistor and prevent electrical arcs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.