METHODS AND APPARATUS FOR REDUCED SURFACE VOLTAGE STRESS IN AIR-CORE DRY-TYPE REACTORS

摘要

An air-core dry-type reactor is provided having top and bottom spiders, a non-cylindrical winding having a plurality of turns, and top and bottom connection portions. The non-cylindrical winding is disposed between the top and bottom spiders, the top connection portion in electrical contact with the top spider, and the bottom connection portion in electrical contact with the bottom spider. The plurality of turns includes a first turn having a first diameter, a second turn disposed above the first turn and having a second diameter that is different from the first diameter, and a third turn disposed above the second turn and having a third diameter. A non-cylindrical winding mandrel configured to produce the turns of the non-cylindrical winding is disclosed. Numerous other aspects are provided.