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:
Mar. 12, 2013
Filed:
Jun. 07, 2010
Max Hobelsberger, Wuerenlingen, CH;
Zlatimir Posedel, Neuenhof, CH;
Max Hobelsberger, Wuerenlingen, CH;
Zlatimir Posedel, Neuenhof, CH;
Alstom Technology Ltd., Baden, CH;
Abstract
A method is disclosed for monitoring shaft current (I) and/or insulation of the shaft of an electrodynamic machine, wherein susceptibility to interference can be reduced. A shaft voltage (U) and associated shaft current (I) are measured, and a relationship is determined from measurement results for the shaft voltage (U) and the shaft current (I) for the electrodynamic machine. The shaft voltage (U) can be monitored to monitor the shaft current (I), the shaft current (I) being deduced from the monitored shaft voltage (U) based on a determined relationship between the shaft voltage (U) and the associated shaft current (I).