Method for detecting the state of an electrical protection appliance in an electrical installation and detection device implementing said method
US11187750B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 6, 2018 |
| Grant date | Nov 30, 2021 |
| Priority date | — |
| Expiry date | Dec 6, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2071/042
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method for detecting the open or closed state of a protection appliance in an electrical installation including a voltage detector upstream of the protection appliance and a voltage detector downstream thereof, in which the voltage data provided by the voltage detectors is used to obtain information regarding the presence or absence of voltage upstream and downstream of the protection appliance, a correlation is established between the voltage data, and it is determined whether the protection appliance is in an open state, in a closed state, in an abnormal state or in an undetermined state. The current data provided by the current detectors can also be used to determine the cause of the tripping of the protection appliance, and to thereby obtain a full, precise and real-time diagnostic for the operation of the electrical installation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.