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:
Jul. 04, 2017
Filed:
Feb. 19, 2014
Siemens Aktiengesellschaft, München, DE;
Siemens Aktiengesellschaft, München, DE;
Abstract
In a method for testing a bar winding of a rotor of a rotating electrical machine, a rotor temperature is detected by a thermal radiation sensor, which is arranged in a stator of the rotating electrical machine. A thermal radiation sensor is used with a resolution suitable for the thermal detection of individual bars of the bar winding. The rotor is rotated at a speed that is lower than a limit frequency of the thermal radiation sensor divided by the number of bars of the bar winding, and the thermal radiation of the rotor is detected by the thermal radiation sensor. The thermal radiation sensor is sampled at a sampling frequency that is higher than the speed of the rotor multiplied by the number of bars and the sampled values of the thermal radiation sensor are evaluated.