Stored-spring-energy actuator mechanism for a high-voltage circuit breaker
US5113056A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 10, 1990 |
| Grant date | May 12, 1992 |
| Priority date | — |
| Expiry date | Jul 10, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/18824
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The stored-spring-energy actuator mechanism (210) for the high-voltage circuit breaker (218) has a spiral spring (216) which can be loaded by means of the loading device (212). The high-voltage circuit breaker (218) can be switched on once and off once with the energy stored in the loaded spiral spring (216). The energy stored in the fluid-pressure accumulator (258) is sufficiently great to charge the spiral spring (216) at least once. The working-stroke movement of the piston rod (242) in arrow direction (A) is transformed via the gear segment (236) into a rotation through 360.degree. of the gear (232) meshing with this gear segment (236). The spiral spring (216) is thereby loaded via the loading lever (230). When the three-way valve (256) is changed over, the cylinder-piston unit (214) is hydraulically connected to the low-pressure reservoir (266), as a result of which the gear segment (236) is pivoted back under the force of the restoring spring (250), and the piston-cylinder unit (214) is moved back into the inoperative position. Unloading of the spiral spring (216) is prevented by the backstop (232), and the coupling between the loading lever (230) and the gear (232) is neutra…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.