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

fYear

2011

fDate

20-23 Aug. 2011

Firstpage

1

Lastpage

4

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Machines and Systems (ICEMS), 2011 International Conference on

Conference_Location

Beijing

Print_ISBN

978-1-4577-1044-5

Type

conf

DOI

10.1109/ICEMS.2011.6074000

Filename

6074000