Analysis of Causes of Generator Vibration Faults and Rotor Cracking in a Power Plant

Bao Tong Chai; Qing Meng Zeng; Zheng Feng Wu

doi:10.4028/www.scientific.net/AMM.893.39

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 893Analysis of Causes of Generator Vibration Faults...

Analysis of Causes of Generator Vibration Faults and Rotor Cracking in a Power Plant

Abstract:

The vibration of a generator in a power plant and the cause of rotor cracking wereanalyzed. The causes of generator rotor cracking were analyzed from the rotor raw material andheat treatment process. The results show that the brittleness and notch sensitivity of the rotormaterial are large due to the unreasonable heat treatment process of the rotor. When the stress isconcentrated, a cracking accident occurs. The generator rotor was returned to the manufacturingcompany for operation. At 3000 r•min-1, the generator's overhanging end vibrated greatly, and thefault was successfully eliminated by the dynamic balance test.

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Periodical:

Applied Mechanics and Materials (Volume 893)

Pages:

39-44

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.893.39

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Online since:

July 2019

Authors:

Bao Tong Chai*, Qing Meng Zeng, Zheng Feng Wu

Keywords:

Dynamic Balance, Fatigue Cracking, Generator

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* - Corresponding Author

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