Gas circuit-breaker
US7528336B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 25, 2006 |
| Grant date | May 5, 2009 |
| Priority date | — |
| Expiry date | Apr 19, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H33/42
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In an interrupter of a gas circuit breaker that uses springs as a driving source, a contact having a fixed contact and movable contact is opened and closed so as to turn on and off electric power. An operation unit generates driving force for driving the movable contact. A link mechanism interconnects the operation unit and interrupter. The link mechanism has a first lever linked to the operation unit, a second lever linked to the movable contact, and a rotational shaft to which the two levers fit. The operation angle of the first lever with respect to a direction parallel to the motion direction of the movable contact differs depending on whether the contact is open or closed. The gas circuit breaker operates at high speed without the energy of the driving source being increased.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.