Method and system for through fault detection in electrical devices
US8451574B2 · kind B2 · utility
1Cited by
4References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 29, 2006 |
| Grant date | May 28, 2013 |
| Priority date | — |
| Expiry date | Oct 1, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02H3/006
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present invention is directed to a method and a system for fault detection analysis in a power device which is operatively associated with a differential protection unit. The power device has one input side and one output side through which an input current and an output current flows into and out from it, respectively. Signals representative of the input and output currents are processed in order to verify if an occurring fault is external to the power device. Under a condition of an external fault, the differential protection unit is disabled for a determined interval of time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.