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US 9,437,356 B2Granted
Medium frequency transformer
AssigneeSTS Spezial-Transformatoren-Stockach GMBH & Co. KG
InventorsWilhelm Krämer, Christoph Gulden
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AssigneeSTS Spezial-Transformatoren-Stockach GMBH & Co. KG
InventorsWilhelm Krämer, Christoph Gulden
Estimating the term…
The invention concerns a medium frequency transformer with a housing, in which numerous winding chambers, having primary and secondary windings, are disposed, wherein the housing is filled, at least partially, with an insulating liquid. The transformer is distinguished in that numerous winding chambers, filled with the insulating liquid, are disposed in the housing, and at least one winding is disposed in each winding chamber, such that, for the most part, only the windings are surrounded by the insulating medium. Preferably the winding chambers are sealed and separated from one another by means of insulating separating walls, wherein the windings are positioned and fixed in place in the winding chambers, and the winding chambers are filled with the insulating liquid. Between the windings there are thus, according to the invention, at least two insulating barriers, which function simultaneously and consist of solid matter insulation in the form of housing and separating walls, and the insulating liquid.
A medium frequency transformer, comprising a sealed housing made of an insulating material, having a plurality of winding chambers for accommodating a plurality of windings, comprising a primary winding and a secondary winding, and at least one core, wherein a liquid or a gas insulating medium is placed in the winding chambers of the sealed housing which fills the winding chambers, provided with a plurality of bushing holes to the winding chambers, and a plurality of intakes and discharges for the insulating medium, and wherein the winding chambers are formed such that only the windings are surrounded by the insulating medium, whereas the core is disposed outside of the sealed housing filled with the insulating medium.
Dependencies are inferred from the claim text.