Ground fault circuit interruptor (GFCI) device having safe contact end-of-life condition and method of detecting same in a GFCI device
US7800873B2 · kind B2 · utility
13Cited by
15References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 28, 2006 |
| Grant date | Sep 21, 2010 |
| Priority date | — |
| Expiry date | Sep 9, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02H3/335
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A ground fault circuit interrupting device detects an end-of-life condition. A ground fault detecting circuit detects a fault condition and controllably operates a switching device to energize a circuit interrupting device. An end-of-life detecting circuit detects a failure of the circuit interrupting device to open after detection of the fault condition, and activates a secondary circuit to energize the circuit interrupting device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.