Patent · US Active

Locking apparatus for a hydromechanical spring energy store drive for a gas-insulated switchgear assembly

US9791044B2 · kind B2 · utility

0Cited by

3References

20Claims

0Family size

Assignee

ABB Schweiz AG · CH

Inventors

Claus Sticker · Großkrotzenburg, DE
Thomas Klose · Althengstett, DE
Jörg Knospe · Könnern, DE
Thomas Brenneis · Mainaschaff, DE

Key dates

Filing date	Apr 3, 2014
Grant date	Oct 17, 2017
Priority date	—
Expiry date	May 3, 2036

Classification

Technology area (CPC H)Electricity
CPC primaryH01H2003/3036
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A locking apparatus for a hydromechanical spring energy store drive for actuating a medium-voltage or high-voltage circuit breaker is disclosed, the spring energy store drive includes a working piston, which is guided in an axial cutout in a pressure housing or working cylinder, and a spring energy store arrangement. The locking apparatus includes a first pressure region and a second pressure region, which are under elevated pressure when the circuit breaker is closed, and a third pressure region, which is unpressurized. The latching bolt can be arranged perpendicular to the working piston, via a latching apparatus, which can be arranged on a side of the latching bolt, which is to point towards the working piston and via the spring energy store arrangement, which is to be pushed away from the working piston.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.