Siemens Aktiengesellschaft

Klaus Oberndörfer

Roman Renz

Klemens Fieberg

Klaus Gessner

Michael Westerkowski

Caspar Asmus

Jürgen Jirasek

Lutz Kellmann

Thomas Pfohl

The aim of the invention is to prevent local spikes from being created in a contact element of a contact arrangement used for interrupting a current in a distribution network, said contact element comprising a contact support () that encompasses a hollow cylindrical wall section () and a bottom wall (), and a contact disk () which is located opposite the bottom wall () in a longitudinal direction while slots () are provided for generating a magnetic field. Said aim is achieved by providing the slots () with rounded edges () having a defined radius.

Contact element comprising rounded slot edges

The aim of the invention is to optimize, in vacuum interrupters, the connection area () between housing parts (), which are coaxially assigned to one another, with regard to the complexity of production for centering measures and with regard to the execution of the soldering process. To this end, a ring-like discoidal centering means () is used, which is made of a silver-coated copper and which comprises centering lugs () located on a tubular flange () that is arranged on the inner periphery of the centering means. Said centering lugs extend in an axial direction of the coaxial assignment and are provided in the form of tabs that point toward the ring-like discoidal area () of the centering means. The centering means is thereby overlapped by a tubular copper part, which is joined to the centering means and which serves as a shielding () inside the vacuum interrupter.

Connection area between housing parts of a vacuum interrupter, and a vacuum interrupter having a connection area of this type

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Berlin, Germany

Klaus Oberndörfer