Gas circuit breaker
US9230750B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 19, 2011 |
| Grant date | Jan 5, 2016 |
| Priority date | — |
| Expiry date | Oct 19, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H33/98
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An outer peripheral wall surrounds a heating chamber that communicates with an arc chamber through an opening that separates fixed contacts from each other in a circumferential direction. The outer peripheral wall includes a heat-resistive cylindrical heat-flow receiving wall portion that is arranged at a position opposed to the opening in a radial direction, and a cylindrical wall portion that is connected to the heat-flow receiving wall portion in a direction of a center axis and also connected to a fixed-side energizing member at its one end on the opposite side to where the wall portion is connected to the heat-flow receiving wall portion, and is made of an insulating material. With this configuration, the outer peripheral wall surrounding the heating chamber can be protected from damage and heat deterioration due to the influence of hot gas.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.