Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Kari Olkanen0
Jari Jäppinen0
Jarkko Iisakkala0
Date of Patent
September 28, 2010
0Patent Application Number
116602660
Date Filed
July 29, 2005
0Patent Primary Examiner
Patent abstract
The invention relates to an arrangement for indicating a fault in an electrical machine having a stator and a rotor with an air gap between it and the stator. In order to detect impurities or similar objects entering the air gap, a means of supervision is arranged on the stator surface facing the rotor. The means of supervision is at least partially protruding from the stator surface, and the integrity of the included detection element, such as a copper wire, is established using a supervision circuit connected to the detection element.
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