DISC WOUND TRANSFORMER WITH IMPROVED COOLING AND IMPULSE VOLTAGE DISTRIBUTION

摘要

The invention is directed to a transformer and a method of manufacturing the same, wherein the transformer has a cylindrical disc-wound coil that inc ludes a layer of cooling ducts disposed between first and second conductor l ayers. The first and second conductor layers each have a plurality of disc w indings arranged in an axial direction of the disc-wound coil. Each of the d isc windings includes a conductor wound into a plurality of concentric turns .