公开(公告)号：CA2773980A1

公开(公告)日：2011-03-17

申请号：CA2773980

申请日：2010-09-10

Applicant: ABB TECHNOLOGY AG

Inventor： LIM JONG-YUN ,  LIM CHANG-YEOL ,  HA YOUNG-JIN ,  CHANG HYEON LEE ,  JOHNSON CHARLES W ,  YANG HAE-SUN ,  MURILLO RAFAEL ,  BALLARD ROBERT C

IPC: H01F27/08

Abstract: A method of manufacturing a transformer that includes forming a disc-wound coil using a plurality of pre-formed cooling ducts. Each cooling duct may be supported by a support pipe secured between walls of the cooling duct, or by a removable insert. First and second conductor layers are formed, each of which include plurality of disc windings arranged in an axial direction of the disc-wound coil. A spacer layer is formed between the first and second conductor layers to form a plurality of axially-extending passages. The cooling ducts are slid into the axially- extending passages so as to be disposed between the first and second conductor layers.