System and method for detecting a fault condition
US7965478B2 · kind B2 · utility
5Cited by
3References
33Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 29, 2009 |
| Grant date | Jun 21, 2011 |
| Priority date | — |
| Expiry date | Dec 15, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02H3/34
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A system and method for detecting a fault condition by a relay is provided. The system includes means for detecting phase currents through three electrical phases, means for detecting a ground fault current, a processor configured to perform a current-based function based upon at least one of the phase currents and a filter. The processor is configured to perform current-based functions based on whether the filter is enabled or disabled.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.