Maschinenfabrik Reinhausen Gmbh

Leonhard Pillmeier

Dieter Dohnal

Josef Neumeyer

Hans-Henning Lessmann-Mieske

Reinhold Baertl

Gunter Kloth

The invention relates to a mechanical switching contact for bipolar commutation comprising an insulating support having fixed contacts disposed therein. Said contacts are switchable by means of a contact carrier which possesses a pivoting arm on the free end and thereof with a respective conducting contact element. The whole mechanical switching contact is configured as a modular unit which can be assembled in an optional manner.

Mechanical switching contact

Load switch for a step switch

On-load tap changer of a step switch

Switching arrangement for load change-over switches of step switches and

A step-transformer drum formed with throughgoing apertures each centered on a respective axis has a contact assembly in each aperture having an insulating washer lining the aperture and having an inside part lying on an inside surface of the drum and an outside part lying on an outside surface of the drum. A stud has an enlarged head bearing outward on the inside washer part and a shaft projecting through the washer past the outside washer part and formed outside the outside washer part with a transversely throughgoing hole. A pin extends transversely through the hole and bears inwardly on an outwardly directed ramp so that rotation of the stud and pin in one direction relative to the structure makes the pin ride up on the ramp and tightens the stud in the aperture and opposite relative rotation loosens the stud.

Contact assembly for selector of step transformer

Growing community of inventors

Wuppertal, Germany

Leonhard Pillmeier