Wound transformer core with support structure

US8957754B2 · kind B2 · utility

Assignee

• ABB TECHNOLOGY AG · CH

Inventors

• Daniel Schäfer · Greenville, US
• Seung Chul Lee · Anyang-si, KR
• Jong-Yun Lim · Anmyeon-eup, KR
• Jens Tepper · Wolfenbüttel, DE
• Burak Esenlik · Paderborn, DE
• Benjamin Weber · Winterberg, DE
• Jasmin Smajic · Uzwil, CH
• Bernhard Petermeier · Bellinzona, CH

Key dates

• Filing date: Aug 18, 2011
• Grant date: Feb 17, 2015
• Expiry date: Mar 11, 2032

Classification

• Technology area (CPC H): Electricity
• CPC primary: H01F41/0226
• WIPO field: Electrical machinery, apparatus, energy
• WIPO sector: Electrical engineering

Abstract

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.