Overvoltage protection apparatus with monitoring function
US10074973B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 1, 2015 |
| Grant date | Sep 11, 2018 |
| Priority date | — |
| Expiry date | Oct 1, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02H3/048
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The object of the invention is an overvoltage protection apparatus with monitoring function having a parallel circuit of two branch circuits, wherein the first branch circuit has a first overvoltage protection device and a second overvoltage protection device that are connected in series, wherein the second branch circuit has a third device and a fourth device that are connected in series, wherein the first overvoltage device and the third device have a first shared voltage potential during operation, and wherein the second overvoltage device and the fourth device have a second shared voltage potential during operation, wherein a first measuring tap is provided between the first overvoltage protection device and the second overvoltage protection device and wherein a second measuring tap is provided between the third device and the fourth device, with a signal being derived from the voltage between the first measuring tap and the second measuring tap that provides state information in relation to the first overvoltage protection device and the second overvoltage protection device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.