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Analysis and Treatment of an Overheated Ablated Fault on the Pole Shoe Surface of a Large Tubular Hydro-Generator

Zhi-Ting Zhou, Yong Yang, Ke Xiao, Zhen-Nan Fan, Zu-Ying Bian, Kun Wen, Jing-Can Li, Bing Yao
2020 IEEE Access  
CONCLUSION In this paper, we studied a new kind of an overheated ablated fault on the pole shoe surface of the tubular hydro-generator.  ...  Fault Characteristics The hydro-generator was officially put into operation on May 28, 2006, and a serious overheated ablated fault on the surface of its pole shoe was found during the first overhaul in  ...  Problem regions and FE meshes of electromagnetic fields Considering the saturation of an iron core, the 3D boundary value problem of a nonlinear time-varying moving electromagnetic field was obtained as  ... 
doi:10.1109/access.2020.3008253 fatcat:l5yy225mvbejfi6cmw34rijrze