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:
Oct. 20, 2009
Filed:
Dec. 18, 2003
Matthias Baca, Lünen, DE;
Peter Haschke, Oberhausen, DE;
Claus-georg Richter, Mülheim an der Ruhr, DE;
Hans-bernd Twellmann, Mülheim an der Ruhr, DE;
Matthias Baca, Lünen, DE;
Peter Haschke, Oberhausen, DE;
Claus-Georg Richter, Mülheim an der Ruhr, DE;
Hans-Bernd Twellmann, Mülheim an der Ruhr, DE;
Siemens Aktiengesellschaft, Munich, DE;
Abstract
A laminated core testing device for testing laminated cores in a generator is provided. The laminated core testing device includes an exciting winding situated parallel to a rotation axis of the generator and connected to a secondary alternating current generator, and further includes an infrared image acquisition device for acquiring infrared recordings. The secondary alternating current generator has a controllable frequency converter, and the secondary alternating current generator, at a frequency ranging from 400 Hz to 600 Hz, provides, in a single-phase manner, an output of 200 kW with a controllable output voltage ranging from 0 V to 3.0 kV.