Medium voltage switching device
US6911610B2 · kind B2 · utility
3Cited by
10References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 18, 2001 |
| Grant date | Jun 28, 2005 |
| Priority date | — |
| Expiry date | Apr 11, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H47/043
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A medium voltage switching device includes an electromagnetic actuation chain and a power supply which provides electric power to the electromagnetic actuation chain. The power supply includes at least a first power supply device which is electrically connected to a medium voltage power distribution line, so as to drain electric power directly from the distribution line, and a second circuit configured to store at least the electric energy drained from the medium voltage power distribution line, and to thereby provide the electromagnetic actuation chain with electric power.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.