High-voltage gas-blast circuit-breaker
US5808257A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 22, 1997 |
| Grant date | Sep 15, 1998 |
| Priority date | — |
| Expiry date | Jul 22, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2033/908
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A gas-blast gas-insulated high-voltage circuit-breaker comprises a fixed main contact, a fixed arc contact and a mobile assembly comprising a main contact, an arc contact and a compression volume cooperating with a fixed piston and communicating with a blast volume leading to a blast nozzle. The compression volume is provided with a valve preventing the gas passing from the blast volume to the compression volume. The piston comprises openings for evacuating the gas from the compression volume during tripping, these openings being closed between the start of compression of the compression volume and the closure of the valve and open upon closure of the valve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.