Gas-insulated circuit breaker with nominal contact shielding arrangement
US9018557B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 15, 2014 |
| Grant date | Apr 28, 2015 |
| Priority date | — |
| Expiry date | Aug 15, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H33/7023
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A gas-insulated type circuit breaker including a housing defining a gas volume for a dielectric insulation gas; a first arcing contact member and a second arcing contact member, wherein the first arcing contact member and the second arcing contact member are movable relative to each other along an axis; a first nominal contact member and a second nominal contact member, wherein the first nominal contact member and the second nominal contact member are movable relative to each other along the axis; and a first nominal contact shielding arrangement including an inner shield member and an outer shield member, wherein the inner shield member and the outer shield member are arranged coaxially about the axis. The first nominal contact member is arranged co-axially between the inner shield member and the outer shield member, and is movable relative to the inner shield member and to the outer shield member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.