EP 1279177 B1 20060726 - A WOUND TRANSFORMER CORE AND A METHOD AND APPARATUS FOR MANUFACTURING THEREOF
Title (en)
A WOUND TRANSFORMER CORE AND A METHOD AND APPARATUS FOR MANUFACTURING THEREOF
Title (de)
GEWICKELTER TRANSFORMATORKERN, VERFAHREN UND VORRICHTUNG ZUR DESSEN HERSTELLUNG
Title (fr)
NOYAU DE TRANSFORMATEUR ENROULE, PROCEDE ET APPAREIL POUR SA FABRICATION
Publication
Application
Priority
IL 0000243 W 20000427
Abstract (en)
[origin: WO0182316A1] A transformer core made of magnetic strips is presented for use in a power distribution transformer. The transformer core has a desired height and a substantially cylindrical toroidal shape produced by winding a multi-layer structure about a central axis of the toroid in a spiral like manner. Each layer in the structure is composed of a predetermined number of magnetic strips arranged along the central axis with air gaps naturally existing between each two adjacent strips of the layer. A number <i>n</i> of layers in the structure is defined by the magnetic properties of the strips. The layers are shifted with respect to each other a predetermined distance along the central axis such that each of the air gaps in one layer is overlapped by (n-1) strips of the other layers of the structure.
IPC 8 full level
H01F 3/04 (2006.01); H01F 27/25 (2006.01); H01F 30/12 (2006.01); H01F 41/02 (2006.01)
CPC (source: EP)
H01F 27/25 (2013.01); H01F 41/0213 (2013.01); H01F 41/0226 (2013.01)
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 0182316 A1 20011101; AT E334473 T1 20060815; AU 4141100 A 20011107; DE 60029640 D1 20060907; DE 60029640 T2 20070726; EP 1279177 A1 20030129; EP 1279177 B1 20060726; ES 2269128 T3 20070401; RU 2002131940 A 20040310; RU 2241271 C2 20041127
DOCDB simple family (application)
IL 0000243 W 20000427; AT 00921014 T 20000427; AU 4141100 A 20000427; DE 60029640 T 20000427; EP 00921014 A 20000427; ES 00921014 T 20000427; RU 2002131940 A 20000427