COIL ASSEMBLY FOR A DRY TRANSFORMER, METHOD FOR MANUFACTURING A COIL ASSEMBLY AND DRY TRANSFORMER
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United States of America Patent
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Issued Date -
Mar 10, 2016
app pub date -
Apr 9, 2014
filing date -
Apr 23, 2013
priority date (Note) -
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Abstract
A coil assembly for a dry high-voltage transformer, having at least one coil with hollow cylindrical electrical winding and with taps, wherein the coil is surrounded at least on its radial outer surface by stiff insulation material, wherein a tap-changer is casted on the outer surface of the insulation material, which is electrically connected to the taps, wherein the electrical connection of at least some of the taps is guided at least in part through the insulation material. The tap-changer may be surrounded by a casting material.
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