Patent ID: 7902478
Filing Date: 2011-03-08
Classification: H01H

Abstract:
1. A switching chamber for a gas-insulated high-voltage switch with a housing filled with insulating gas and a contact arrangement held in the housing, containing, in a coaxial arrangement, two switching pieces, which are capable of being displaced relative to one another along an axis, with in each case one arcing contact and in each case one tubular conductor, which is electrically conductively connected to the arcing contact and into which a rated current contact, which surrounds the arcing contact, is formed, an insulating nozzle, which surrounds the two arcing contacts, and a compression apparatus with a fixed piston and a cylinder, in which a moveable first of the two tubular conductors forms the wall of the cylinder, is electrically conductively and rigidly connected to a first of the two arcing contacts via a base of the cylinder and bears the insulating nozzle, wherein a screw connection is arranged in the peripheral region of the insulating nozzle, of the cylinder base, of a first mounting flange for fixing the piston on the switching chamber housing or of a second mounting flange for fixing a deflection gear mechanism, which is connected to the second arcing contact, which screw connection has a radially displaceable locking element, which fixes the insulating nozzle, the cylinder base, the first or the second mounting flange by spreading into and being clamped in one of the two tubular conductors or in the switching chamber housing.