Ground fault circuit interrupter using frequency recognition and measurement
US12021371B2 · kind B2 · utility
0Cited by
6References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 2, 2023 |
| Grant date | Jun 25, 2024 |
| Priority date | — |
| Expiry date | May 2, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02H3/46
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A wiring device including one or more line terminals and a controller. The controller is configured to, determine a frequency of an input voltage at the one or more line terminals, determine whether the frequency is within a predetermined range, and when the frequency is within the predetermined range, perform a test of the wiring device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.