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:
Apr. 30, 2019
Filed:
Nov. 19, 2015
Siemens Energy, Inc., Orlando, FL (US);
Mark W. Fischer, Pittsburgh, PA (US);
James A. Bauer, Gibsonia, PA (US);
Lukas Demsey, Pittsburgh, PA (US);
SIEMENS ENERGY, INC., Orlando, FL (US);
Abstract
Eddy current inspection of the step iron region of a generator stator core lamina insulation is performed while the rotor is in situ, with inspection system (). The system () excites the stator core () and then measures any eddy currents indicative of a damaged region. The inspection system carriage () and its pivoting extension arm () are inserted within the rotor gap () while the rotor () remains in situ within the generator (). The EL CID system's eddy current sensing coil assembly () includes a Chattock coil (), which is mounted in a coil housing () that is in turn pivotally mounted on a distal end of the extension arm (). A sensing surface () of the coil housing () remains in abutting contact with the generator core circumference in the step iron region (), despite the step-like profile of the core circumference in that region.