Evaluation of Winding Symmetry and Circulating Currents of Hairpin Windings

Author(s):  
Marc England ◽  
Boris Dotz ◽  
Bernd Ponick
Keyword(s):  
2019 ◽  
Vol 1 (2) ◽  
Author(s):  
B. M. Schoenauer ◽  
N. M. Gergs ◽  
P. Schmitteckert ◽  
F. Evers ◽  
D. Schuricht

Author(s):  
Kevin Darques ◽  
Abdelmounaïm Tounzi ◽  
Yvonnick Le-menach ◽  
Karim Beddek

Purpose This paper aims to go deeper on the analysis of the shaft voltage of large turbogenerators. The main interest of this study is the investigation process developed. Design/methodology/approach The analysis of the shaft voltage because of several defects is based on a two-dimensional (2D) finite element modeling. This 2D finite element model is used to determine the shaft voltage because of eccentricities or rotor short-circuit. Findings Dynamic eccentricities and rotor short circuit do not have an inherent impact on the shaft voltage. Circulating currents in the stator winding because of defects impact the shaft voltage. Originality/value The original value of this paper is the investigation process developed. This study proposes to quantify the impact of a smooth stator and then to explore the contribution of the real stator winding on the shaft voltage.


2021 ◽  
Author(s):  
Felipe Ruiz Allende ◽  
Marcelo A. Perez ◽  
Freddy Flores-Bahamonde ◽  
Mariusz Malinowski

2021 ◽  
Author(s):  
Felipe L. Ruiz ◽  
Marcelo A. Perez ◽  
Freddy Flores-Bahamonde ◽  
Mariusz Malinowski

2018 ◽  
Vol 46 (9) ◽  
pp. 1061-1071 ◽  
Author(s):  
Abdelmalik Zorig ◽  
Mohammed Belkheiri ◽  
Said Barkat ◽  
Abdelhamid Rabhi ◽  
Frede Blaabjerg

1996 ◽  
Vol 46 (S5) ◽  
pp. 2829-2830
Author(s):  
I. L. Atkin ◽  
E. Abraham ◽  
C. M. Pegrum
Keyword(s):  

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