Fault detection in spring-loaded drives of medium-voltage switchgear systems
US12334283B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 9, 2021 |
| Grant date | Jun 17, 2025 |
| Priority date | — |
| Expiry date | Nov 17, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2300/052
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method of operating a spring-loaded drive of a medium-voltage switchgear system includes at least the following steps: measuring a drive current of an electric auxiliary drive for loading a drive spring of the spring-loaded drive of the medium-voltage switchgear system; loading the drive spring by the electric auxiliary drive; creating an evaluation data set in accordance with the measured drive current; comparing the evaluation data set with an expectation; and outputting a maintenance signal in accordance with a result of the comparison. There is also described a spring-loaded drive and a medium-voltage switchgear system having a spring-loaded drive of this type.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.