Medium-frequency transformer with dry core

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United States of America Patent

PATENT NO 11557428
SERIAL NO

16537868

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Abstract

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A transformer is provided, which includes a tank having an enclosed volume with an insulating material, the tank including at least one channel extending through the tank, wherein the interior of the at least one channel is separated from the enclosed volume of the tank by a channel wall. A transformer core is provided outside of the enclosed volume, including at least one core leg extending through the tank via the at least one channel. At least one coil is located inside the enclosed volume, the coil being wound about the at least one channel, the tank has an inner wall or outer wall including a weakly-conductive layer, which includes fibers embedded in an impregnating material.

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Patent Owner(s)

Patent OwnerAddress
HITACHI ENERGY LTD8050 ZÜRICH

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Donzel, Lise Wettingen, CH 14 133
Gradinger, Thomas Aarau Rohr, CH 34 181
Greuter, Felix Rütihof, CH 40 563
Velthuis, Rudi Lauchringen, DE 11 4

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