Circuit breaker equipped with an extensible exhaust cover
US10170256B2 · kind B2 · utility
0Cited by
3References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 25, 2016 |
| Grant date | Jan 1, 2019 |
| Priority date | — |
| Expiry date | Jan 25, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H33/904
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention relates to a medium-, high-, or very high-voltage circuit breaker, comprising at least one arc-control chamber and an outer casing in which the arc-control chamber is arranged. The circuit breaker includes a discharge cap (40) forming a portion of the outer wall external of the arc-control chamber (12), the discharge cap being situated inside the outer casing and internally defining a gas-flow chamber (31). In the invention, the discharge cap (40) includes at least one portion (40′) that is movable under the effect of the gas pressure in the gas-flow chamber (31), in such a manner that its volume is extensible.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.