公开(公告)号：EP1099228B1

公开(公告)日：2005-04-20

申请号：EP99934089.6

申请日：1999-07-16

Applicant: ABB Inc.

Inventor： LANOUE, Thomas, J. ,  MAREK, Richard, P.

IPC: H01B7/00 ,  H01R43/00 ,  H05K3/00 ,  H01F27/32 ,  H01F41/12 ,  H01F41/06

CPC classification number: H01F27/323 ,  H01F41/063

Abstract: A method of making various insulated conductor sizes during a transformer coil winding process by slitting and bonding insulating sheet materials (30) and a foil sheet conductor (42) into a composite foil conductor/insulation (44). The conductor/insulation composite (44) is made by folding the composite into a substantially U-shaped length which has a central portion between two leg portions (32, 34) and folding the leg portions (32, 34) of the "U" inwardly to a position substantially parallel to the central portion of the "U" to bring the free ends (38a, 40a) of the leg portions into opposing relation. This method provides a folded insulated foil conductor (44) having a two-conductor thickness surrounded by the overall insulation. Provision is also made for increasing the cross-sectional area of the conductor (42).