Switching arrangement
AssigneeMaschinenfabrik Reinhausen GmbH
InventorsChristian Hammer, Thomas Huber, Albert Schmidbauer
Life of this patent
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Abstract
The invention relates to a switching arrangement with two operational settings for switching over a winding during transformer operation, wherein during the switching-over a transient current commutates from one current path to another current path. In that case fixed contacts are arranged in several horizontal planes around a rotatable switching shaft and on an insulating-material frame and have upper and lower contact fingers that can be pressed apart and with which electrical connection can be made by an electrically conductive rail as movable switching contact.
Claims18
A switching arrangement with two operational settings for switching over a winding during transformer operation, wherein during the switching-over a transient current commutates from one current path to another current path, wherein at least one horizontal plane is provided for each phase to be switched, wherein in each horizontal plane fixed contacts are arranged around a centrally and vertical rotatable switching shaft and on a common insulating-material frame and wherein selectable electrical connection with the fixed contacts in each plane can be made by at least one respective movable switching contact fastened on the switching shaft, characterized in that the movable switching contact is constructed as a curved horizontally extending rail of electrically conductive material and that the fixed contacts have upper and lower contact fingers that extend parallel to one another and that can be pressed apart against the force of upper and lower contact springs in such a manner that the movable switching contact can run in therebetween and produce an electrical contact.
A switching arrangement comprising:
- a dielectric housing centered on an upright axis;
- a plurality of contact arrays lying on respective axially spaced planes extending perpendicular to the axis and each having an upper row of fixed contacts and a lower row of fixed contacts;
- a shaft extending on the axis in the housing and rotatable about the axis;
- respective curved horizontally extending and electrically conductive contact rails carried on and rotatable with the shaft and each engaged between the rows of fixed contacts of a respective contact array;
- and
- respective springs braced against the fixed contacts and biasing the upper contacts downward and the lower contacts upward, whereby as the shaft rotates the contacts rails slide between, push axially apart, and make electrical contact between selected upper contacts and the respective lower contacts.
Dependencies are inferred from the claim text.