Part of #Detection of Stator Winding Inter-turn Short Circuit In Induction Motor Using Vibration Specified Harmonic Amplitude# :
Publishing year : 2012
Conference : Second International Acoustic and Vibration Conferences
Number of pages : 8
Abstract: Vibration analysis is one of the most common tools for monitoring and detecting faults in electrical machines. There are several standards to monitor the machines conditionand to discern the unusual situation in electrical machines by this technique. The current standards that are used for fault diagnosis in electrical machines by vibration analysis mainly deal with the increase in overall vibration amplitude in faulty conditions. As the inter-turn in motor or generator stator fault does not affect overall vibration and just increase several frequencies that will be introduced in this paper, these standards can not detect stator inter-turn. The author suggests that Pursuing of special frequencies is the best way to detect inter-turning machines by the vibration technique instead of using the current standards for detecting the mentioned fault. Finally, we will show the vibration spectrum in an asynchronous motor in both healthy and stator winding inter-turned situation and compare the introduced frequencies in that experimental object.