Abb Technology Ag

Abb Schweiz Ag

Abb Power Grids Switzerland Ag

Jong-Yun Lim

Benjamin Weber

Jens Tepper

Rafael Murillo

Martin Carlen

Charles W Johnson

Robert C Ballard

Burak Esenlik

Jasmin Smajic

Wolfgang Mönig

Michael Luckey

Bernhard Petermeier

Karel Bilek

Seung-Chul Lee

Daniel Schäfer

Chang-Yeol Lim

Young-Jin Ha

Chang-Hyeon Lee

Hae-Sun Yang

A wound transformer core is provided with at least one core loop made of a magnetic material. The transformer core includes multiple thin amorphous band-like iron sheets which are concentrically stacked around at least one center axis. A lower yoke section, an upper yoke section, and at least two limb sections are formed. The transformer core includes a modular plate-like support structure which is affixed upright to the center axis on both face sides of the lower yoke section and on both face sides of each limb section such that neighbored iron sheets are affixed together at their outer edge. The modular plate-like support structure includes, for each face side of the corresponding core sections, at least two plate-like modules, which are each connected to each other by a first or second plug-in connection.

Wound transformer core with support structure

A transformer of dry design is disclosed having a core composed of amorphous material, which is sensitive to mechanical loads, having at least one winding former which surrounds the core and is in each case formed from at least one primary winding and secondary winding, and having at least one holding apparatus. A method for transformer production is also disclosed, wherein the holding apparatus is used to fix the at least one primary winding and secondary winding in each case and for this purpose it acts on each of the end faces of the at least one winding former.

Power transformer with amorphous core

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.

Disc wound transformer with improved cooling

Growing community of inventors

Chungchongnam-do, South Korea

Jong-Yun Lim