EP 0746860 B1 19980422 - TWISTED-CONDUCTOR BUNDLE FOR THE WINDINGS OF ELECTRIC MACHINES AND EQUIPMENT
Title (en)
TWISTED-CONDUCTOR BUNDLE FOR THE WINDINGS OF ELECTRIC MACHINES AND EQUIPMENT
Title (de)
DRILLEITER FÜR WICKLUNGEN ELEKTRISCHER MASCHINEN UND GERÄTE
Title (fr)
FAISCEAU DE CONDUCTEURS TORSADE POUR ENROULEMENT DE MACHINES ET APPAREILS ELECTRIQUES
Publication
Application
Priority
- AT 9500038 W 19950223
- AT 39894 A 19940225
Abstract (en)
[origin: WO9523420A1] The aim of the invention is to provide a twisted-conductor bundle which meets the requirements of machine and equipment designers and enables the material to be used more efficiently while preferably also reducing the equipment height. Described is a twisted-conductor bundle (1) made up of flat-wire conductors (2) disposed one above the other. As in the prior art, the bundle may consist of up to about 80 conductors. The invention calls for at least one spacer (4) to be disposed between two superposed conductors (2) in each conductor stack, the transverse channels (5) thus formed in each conductor stack being flush with each other. The spacers (4) may be located in the same plane or in different planes in the conductor stack. A cooling channel (5) is thus formed through which coolant may be passed. When this twisted-conductor bundle is used in a transformer winding, a cooling channel is formed in the direction of the winding axis. The invention makes it possible for the first time to improve cooling in the axial direction. The improved cooling enables the current density to be increased, thus reducing the amount of copper necessary for the winding.
IPC 1-7
IPC 8 full level
H01F 27/28 (2006.01); H01F 27/32 (2006.01)
CPC (source: EP)
H01F 27/2823 (2013.01); H01F 27/322 (2013.01); H01F 2027/2838 (2013.01)
Designated contracting state (EPC)
DE IT NL
DOCDB simple family (publication)
WO 9523420 A1 19950831; AT 403972 B 19980727; AT A39894 A 19971115; DE 59501990 D1 19980528; EP 0746860 A1 19961211; EP 0746860 B1 19980422
DOCDB simple family (application)
AT 9500038 W 19950223; AT 39894 A 19940225; DE 59501990 T 19950223; EP 95909572 A 19950223