Method of detecting an electric arc by analysis of its acoustic signature
US10690713B2 · kind B2 · utility
1Cited by
8References
10Claims
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Key dates
| Filing date | Dec 25, 2016 |
| Grant date | Jun 23, 2020 |
| Priority date | — |
| Expiry date | Dec 25, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02H1/0023
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method of detecting an electric arc in an electrical system from a signal originating from at least one sensor detecting acoustic waves in the system, including: a) calculating by means of a processing device, over a sliding window of signal samples, at least one statistical parameter selected from the skewness and the kurtosis of the signal; b) detecting a possible occurrence of an event by taking into account said at least one statistical parameter; and c) performing a frequency analysis of the signal enabling to identify an electric arc when an event is detected at step b).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.