Title :
Analysis of winding stability of short-circuit test model for extra-high voltage power transformer
Author :
Li, Yan ; Li, Jian ; Sun, Xin ; Jing, Yongteng ; Eerhemubayaer
Author_Institution :
Res. Instn. of Special Electr. Machines, Shenyang Univ. of Technol., Shenyang, China
Abstract :
This paper processes simulate analysis of short-circuit test model of transformer, using finite element analysis software ANSYS. The winding and disk deformation is calculated in different elastic modulus value of strip; The model is calculated and analyzed in the load of short-circuit test, the maximum deformation 2.62 mm of disk obtained is mainly consistent with actual measured value 2.9 mm; Analysis for impact of multiple short-circuit can be done for single span. After nine impacts the modal turn into the cumulative deformation stage. This analysis method in paper can be used for Extra-high voltage large power transformer winding short-circuit strength and radial stability analysis.
Keywords :
deformation; discs (structures); elastic moduli; finite element analysis; impact (mechanical); power system stability; power transformer testing; short-circuit currents; transformer windings; ANSYS software; disk deformation; elastic modulus; extra-high voltage large power transformer winding; finite element analysis; multiple short-circuit impact analysis; radial stability analysis; short-circuit strength; short-circuit test model; winding deformation; winding stability analysis; Force; Integrated circuit modeling; Load modeling; Power transformer insulation; Strain; Stress; Windings;
Conference_Titel :
Electrical Machines and Systems (ICEMS), 2011 International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4577-1044-5
DOI :
10.1109/ICEMS.2011.6074000
