Stored-energy operating means for an electric circuit breaker
US4153828A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 8, 1976 |
| Grant date | May 8, 1979 |
| Priority date | — |
| Expiry date | Jul 8, 1996 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2003/323
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
This operating means comprises a circuit-breaker closing spring, a rotatable spring-controller mounted for rotation between first and second dead-center positions with respect to said spring, and means for transmitting charging forces to the spring in response to rotation of the spring-controller in a forward direction from said second toward said first dead-center position. The spring acts to discharge and thereby further rotate said spring-controller in a forward direction when the spring-controller has been rotated in a forward direction past said first dead-center position. Discharge of the spring drives the spring-controller into said second dead-center position, following which the spring-controller oscillates about said second dead-center position to dissipate excess energy then remaining in the parts. Means is provided for closing the circuit breaker in response to said forward rotation of the spring-controller into said second dead-center position, and this means comprises: a mechanically trip-free operating mechanism coupled to the movable contact of the circuit breaker and a linkage interconnecting said spring-controller and said operating mechanism through a pin and slo…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.