The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 07, 2012
Filed:
Sep. 10, 2010
Jong-yun Lim, Chonan-Si, KR;
Chang-yeol Lim, Chonan-Si, KR;
Young-jin Ha, Cheonan, KR;
Chang-hyeon Lee, Chonan-Si, KR;
Charles W. Johnson, Wytheville, VA (US);
Hae-sun Yang, Chonan-Si, KR;
Rafael Murillo, Aragòn, ES;
Robert C. Ballard, Wytheville, VA (US);
Jong-Yun Lim, Chonan-Si, KR;
Chang-Yeol Lim, Chonan-Si, KR;
Young-Jin Ha, Cheonan, KR;
Chang-Hyeon Lee, Chonan-Si, KR;
Charles W. Johnson, Wytheville, VA (US);
Hae-Sun Yang, Chonan-Si, KR;
Rafael Murillo, Aragòn, ES;
Robert C. Ballard, Wytheville, VA (US);
ABB Technology AG, Zurich, CH;
Abstract
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.