Protection earth connection detector
US11031772B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 5, 2018 |
| Grant date | Jun 8, 2021 |
| Priority date | — |
| Expiry date | Apr 8, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02H7/20
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A device for detecting and/or monitoring a protective earth connection in a mains electricity outlet includes an electrical current conducting unit between the line wire and/or neutral wire of the mains electricity and the protective earth wire allowing the flow of a detection current between the line wire and/or neutral wire and the protective earth wire. The device is furthermore configured for measuring the detection current and comparing the detection current with a preselected reference current. A method for detecting and/or monitoring a protective earth connection in a mains electricity outlet includes the steps of measuring a detection current from the line wire and/or neutral wire of the mains electricity through an electrical current conducting unit to the protective earth wire, and comparing the measured detection current to a preselected reference current.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.