Arc fault detection for SSPC based electrical power distribution systems
US7177125B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 12, 2003 |
| Grant date | Feb 13, 2007 |
| Priority date | — |
| Expiry date | Feb 15, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02H3/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An apparatus and a method detect arc faults in an electrical power distribution system of a vehicle. In one implementation, the apparatus (320) includes: a load current input (340) arranged to obtain a measurement of current being supplied to a load (140) via a solid state power switching device (310) of the electrical power distribution system; and an arc fault detector (330) arranged to compare the measured load current with a load signature, the load signature being a function of characteristics of the load (140) being supplied current via the solid state power switching device (310) and operating conditions of the solid state power switching device (310). The arc fault detector (330) outputs an arc fault indication signal when the measured current is outside an allowable range of the load signature to provide protection against arc faults.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.