Device for the fine adjustment of the output voltage of multi-phase regulating transformers
AssigneeSchering Corporation
InventorEgon Hubel
Life of this patent
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Abstract
A multi-phase regulating transformer is disclosed having a plurality of windings cooperating with stepping trolleys which are driven by a common driving member. To obtain fine adjustment of the output voltage, the trolleys are coupled to the driving member with different plays to introduce a dead travel of the driving member relative to at least one trolley, which exceeds the spacing between two adjoining individual windings of the transformer.
Claims4
A device for fine adjustment of output voltage of a three-phase regulating transformer having a plurality of windings cooperating with assigned trolleys and common driving means for the trolleys, comprising coupling elements between respective trolleys and the driving means, said coupling elements having different play to introduce a dead travel exceeding the spacing between adjoining windings, of the driving means relative to at least one of the trolleys, and wherein one of the coupling elements has zero play and the second and the third coupling element have different plays to introduce different dead travels.
Dependencies are inferred from the claim text.