Switchgear with a gas-tight insulating space
US10373785B2 · kind B2 · utility
2Cited by
3References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 21, 2016 |
| Grant date | Aug 6, 2019 |
| Priority date | — |
| Expiry date | Jul 21, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H85/38
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present disclosure relates to switchgear. Various embodiments may include medium- or high-voltage switchgear with a gas-tight insulating space. For example, a switchgear may include: a gas-tight insulating space where an insulating gas is kept above atmospheric pressure and two switching contacts in the space. At least one of the contacts may movable with respect to a nozzle. The insulating gas may include a mixture of at least 90% by mass of nitrogen and oxygen or nitrogen and carbon dioxide. The nozzle may include a plastic with at least 65% by mass in total of the elements carbon, nitrogen, and oxygen.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.