Patent ID: 6147580
Filing Date: 2000-11-14
Classification: H01F

Abstract:
A strip wound coil for use as a secondary winding in a transformer, said coil comprising;a. a sheet conductor material;b. a sheet insulating material having a width greater than said sheet conductor material, wound in an essentially circular shape coincident with said sheet conductor material a plurality of turns, forming a plurality of pockets at top and bottom portions of said strip wound coil between adjacent turns of said sheet insulating material;c. a first lead conductor attached to one end of said sheet conductor material;d. a plurality of cooling channels formed with spacers and interposed in said predetermined number of turns;e. means for terminating said sheet insulator material coincident with said sheet conductor material and interposing a second lead conductor at said termination of said winding;f. a sealant for sealing said formed pockets located on said bottom portion of said strip wound coil and means for sealing vertical seams formed between said sheet insulator material and said sheet conductor material in said formed air channels;g. a polyester resin impregnated throughout said coil to form a high strength bond between adjacent turns, said high strength bond for preventing movement of said conductor sheet material during short circuit conditions; andh. wherein said sealant for preventing said impregnated resin from draining from said strip wound coil while said strip wound coil is curing.