Siemens Aktiengesellschaft

Siemens Energy Global Gmbh & Co. Kg

Maschinenfabrik Reinhausen Gmbh

Norbert Wenzel

Werner Hartmann

Wolfgang Albrecht

Christian Hammer

Roman Renz

Andreas Stelzer

Joerg Teichmann

Andreas Lawall

Christian Pircher

Andreas Sachsenhauser

Hans Krueger

Wolfgang Welsch

Thomas Hammer

Sylvio Kosse

Thomas Rettenmaier

Steffen Lang

Katrin Benkert

Christian Schacherer

Christian Kotz

Sebastian Rehkopf

Norbert Sürken

Wilfried Haas

Martin Koletzko

Rainer Frotscher

Hubert Grosse-Wilde

Jörg Teichmann

Konrad Raedlinger

Silvio Kosse

Christoph Heynen

Konrad RÄDLINGER

Various embodiments include a method for producing a ceramic insulator for a high-voltage or medium-voltage switching system comprising: attaching a base material for an equipotential layer between two axially symmetrical ceramic structural elements; disposing the electrically conductive equipotential layer between the two ceramic structural elements; and joining the two ceramic structural elements to form a unitary body along a symmetry axis of a first of the two elements.

Ceramic insulator

A vacuum circuit breaker includes a vacuum circuit breaker tube having a vacuum housing in which a contact system is disposed. The contact system includes two contacts which are movable relative to one another. An electrical pre-arcing unit having an ignition electrode in the vacuum housing is provided for igniting an arc along an arc current path.

Vacuum circuit breaker

A tap changer for uninterrupted switching between winding taps of a tapped transformer has first and second load branches for each phase to be switched. Each load branch has a main vacuum switch and in parallel thereto a series connection of a switch-over resistance and a respective auxiliary vacuum switch. First and second vacuum switching tubes each contain the main vacuum switch of the respective first and second load branches and the auxiliary vacuum switch of the other of the load branches.

Tap changer and vacuum interrupter for a tap changer of this kind

The invention relates to a tap changer having vacuum interrupters for switching over between winding taps of a tapped transformer without interruption. The tap changer according to the invention having vacuum interrupters is based on the general idea of combining the functionalities of at least one conventional vacuum switching contact which switches under load and a further mechanical switching means according to the prior art in just one single vacuum interrupter with two separately moving contact systems.

Tap changer with vacuum interrupters

The invention relates to a tap changer for the interruption-free switchover between winding taps of a tap-changing transformer. Furthermore, the present invention relates to a novel vacuum interrupter which is particularly suitable for such a tap changer. The tap changer according to the invention is based on the general concept of combining in each case one main contact (V1) and one mechanical switching means (U1), connected in series therewith, of a first load branch and an additional resistive contact (V3) of a second load branch in only a single vacuum interrupter () with a common housing (). The vacuum interrupter () according to the invention is furthermore based on the general inventive concept of replacing the functionalities of two required vacuum interrupters in accordance with the prior art and an additional mechanical switching means with a single vacuum interrupter () according to the invention by virtue of combining the design of a vacuum interrupter () with a plurality of moveable contact systems (I, II, III), which are arranged in separate vacuum interrupter chambers () which are sealed with respect to one another.

Tap changer and vacuum interrupter for such a tap changer

A method for manufacturing a stripline laser which is composed of a plurality of constituent parts assembled together with at least two of the parts being soldered to one another, characterized by the step of soldering being by a soft solder, subsequently cleaning the interior of the assembled laser by subjecting it to the influence of a plasma treatment, continuing the plasma treatment to passivate the interior surfaces of the assembled parts of the laser, and limiting the temperature of the parts joined together by the soft solder to, at most, 150.degree. during each of the plasma treatments. The method is particularly suitable for utilization to form a CO.sub.2 stripline laser, and includes adding a CO.sub.2 gas during the second or continued plasma treatment for passivating the surfaces by saturating them with CO.sub.2.

Method for manufacturing a stripline laser

Growing community of inventors

Erlangen, Germany

Norbert Wenzel