Siemens Aktiengesellschaft

Ingo Gottschalk

Dirk Springborn

Markus Sulitze

Erhard Pippert

Gundolf Barenthin

Sigismund Brockmann

A surge arrester includes at least one resistor element and a cage in which the at least one resistor element is disposed. The cage includes an upper holder, a lower holder and at least three insulating rods, which are each held at one respective rod end thereof by the upper holder and at the other respective rod end thereof by the lower holder. The upper holder and the lower holder are configured in such a way that they each enable at least two different positions for at least one of the insulating rods, relative to the two holders, and the at least one insulating rod can be positioned differently relative to the two holders.

Surge arrester

A surge arrester has a tube-shaped housing, an end fitting connected to an end of the housing, a varistor block arranged in the housing and a supporting element arranged in the region of the end fitting. The supporting element has a supporting ring which is in contact with the housing and which includes a cone and a clamping ring with a counter-cone that corresponds to the cone. The cone is braced to the counter-cone in such a manner that the supporting ring is pressed to the housing in a non-displaceable manner. The supporting element can thus also be used after the installation of the varistor block and also be removed.

In an encapsulated, compressed gas-insulated high-voltage switchgear there is arranged in the interior of the encapsulation a drive and breaker units actuated by it. The breaker units are carried by a flange plate which closes the encapsulation off so that is is pressureproof. The flange plate is connected with the drive on the side away from the interior. To secure the position of the breaker units and hence also the coupling between them and the respective drive independently of the compressive stress of the flange plate, a substantially flat support plate is provided which directly receives the breaker units and which, extending parallel with the flange plate, is connected therewith via at least three parallel spacers which are arranged in a triangle.

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Berlin, Germany

Ingo Gottschalk