Detection of AC machine winding deterioration using electrically excited vibrations

Presented in this paper is a theoretical review of the relationships that s hould exist between electrical winding parameters and the mechanical vibrat ion of ac machine elements under normal and faulted operating conditions. A lso included are data from an experimental study that relate stator vibrati on and bearing vibration to selected winding faults in a synchronous machin e, Consideration of these results indicates a significant relationship betw een electrical deterioration and mechanical vibration and, thus, provides t he motivation for additional study and a basis for future applications.