Spring-driven mechanism for rectilinear displacement circuit breaker
US6917006B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 14, 2003 |
| Grant date | Jul 12, 2005 |
| Priority date | — |
| Expiry date | Feb 14, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2003/3094
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An operating mechanism for a rectilinear motion circuit-breaker, for performing an open-close-reopen cycle, and operating on an operating rod of the circuit-breaker and including closing and opening springs. The opening spring operates on the operating rod. The closing spring operates on a crank end whose other end is connected to a shaft fastened to a flywheel and on which is mounted a closing cam cooperating with a roller on the operating rod. A closing pawl retains the closing spring in a compressed position, opening the closing pawl releasing the closing spring to rotate the cam, thereby closing the circuit-breaker and rearming the opening spring. A rearming motor couples to the shaft by a freewheel. A pawl triggers opening retaining the operating rod against force of the opening spring in the closed position of the circuit-breaker and is adapted to receive an opening command.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.