Systems and methods for dissolved gas analysis
US11867683B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 28, 2020 |
| Grant date | Jan 9, 2024 |
| Priority date | — |
| Expiry date | Feb 17, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F2027/404
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method of analyzing dissolved gas in an oil-filled transformer includes determining a centroid of a polygon that represents a plurality of dissolved gas concentrations. A fault region in which the centroid of the polygon is located is determined, where the plurality of fault regions are defined in a composite fault region map that is a composite of a Duval Pentagons 1 and 2. The method classifies a fault experienced by the transformer based on the determined fault region within the composite fault region map. The classification is done by a machine learning classification technique. Further embodiments classify faults based on dissolved gas levels without determining a centroid of a polygon representing the dissolved gas levels. Related systems are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.