Lifetime prediction of a gas filling of an electrical switchgear
US11927618B2 · kind B2 · utility
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8Claims
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Key dates
| Filing date | Sep 1, 2022 |
| Grant date | Mar 12, 2024 |
| Priority date | — |
| Expiry date | Sep 1, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02B13/0655
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method of predicting a lifetime of a gas filling of an electrical switchgear is disclosed, wherein pressure values p1, p2 in a system of the electrical switchgear containing the gas filling at a predefined temperature Tp at different points in time t1, t2 are measured. Based on the pressure difference Δp between the pressure values p1, p2 the lifetime of the gas filling is calculated. Alternatively, the pressure values p1, p2 can be taken at temperatures T1, T2 within a predefined temperature range at different points in time t1, t2.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.