Apparatus, systems and methods for performing ground fault self-testing
US11916370B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 28, 2021 |
| Grant date | Feb 27, 2024 |
| Priority date | — |
| Expiry date | Jan 2, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02H3/16
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A circuit interrupter device for selectively connecting a source of AC power from a line side to a load side of the circuit interrupter device includes a controller powered from a source of AC power from a line side. The controller initializes a self-test and determines whether the self-test was successful. The controller outputs a self-test result signal. An electrically-held relay of the device, which is in communication with the controller and is powered from the line side, stays in an OFF state until the self-test result signal indicates the self-test was successful, and enters an ON state if the self-test was successful. When in the OFF state, a load side of the circuit interrupter device is not in electrical communication with the source of AC power, and when in the ON state, the load side is in electrical communication with the source of AC power.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.