Systems and methods for detecting welded contacts in a switch system
US12347636B2 · kind B2 · utility
0Cited by
3References
19Claims
0Family size
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Key dates
| Filing date | Apr 26, 2022 |
| Grant date | Jul 1, 2025 |
| Priority date | — |
| Expiry date | Apr 4, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2047/003
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Systems and methods are provide for detecting weld relay devices within a switching device by: closing one or more first relay devices, wherein the one or more first relay devices are configured to selectively connect and disconnect a first phase of electric power from a power source; opening one or more second relay devices and one or more third switches; detecting whether there is electric current through the one or more second relay devices; and in response to detecting that there is electric current through the one or more second relay devices, determining that the one or more second relay devices are welded.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.