Catastrophic Failure Diagnosis with Modal Analysis of Generator Endwindings
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This failure lead a root cause analysis and a series of investigations that was taken place in a similar design unit deployed at a different site. This paper will describe the bump test and modal analysis procedures and results that were carried out on the end of all coils of the stator winding in the sister unit of the failed 360MW generator which lead to conclusions that were crucial for the determination it´s failure root cause.
de Guarda Matos, Danilo (2018). Catastrophic Failure Diagnosis with Modal Analysis of Generator Endwindings. Turbomachinery Laboratory, Texas A&M Engineering Experiment Station. Available electronically from