Residual current protection device
US10396546B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 3, 2016 |
| Grant date | Aug 27, 2019 |
| Priority date | — |
| Expiry date | Aug 11, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02H3/33
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A residual current protective device for an electric circuit having at least one electrical consumer comprises a residual current determination component, a leakage current determination component and an interruption component. The residual current determination component is configured to determine an amperage difference between the amperage of a current flowing to the at least one electrical consumer and the amperage of a current flowing from the at least one electrical consumer. The leakage current determination component is configured to determine the amperage of a leakage current flowing out of the electric circuit to earth (ground). The interruption component is configured to interrupt the electric circuit if the difference between the determined amperage difference and the determined amperage of the leakage current exceeds a preset limit value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.