Title :
Calculation of short circuit reactance and electromagnetic forces in three phase transformer by finite element method
Author :
Jamali, S. ; Ardebili, M. ; Abbaszadeh, K.
Author_Institution :
Dept. of K.N., Toosi Univ.
Abstract :
A new and simple procedure for determination of leakage reactance and analysis of electromagnetic forces that acting upon the transformer coils is presented in this paper. Before manufacturing and within the design process, it is required that we model the transformer and analyze the transformer condition using this model. The analysis of electromagnetic forces is essential for mechanical considerations. This study is accomplished by using two dimensional planar models utilizing the finite element method. Just by modeling the transformer window and using FEM, the magnetic vector potential is calculated over each node. Then by using three post processing procedures, the leakage reactance of transformer coils is calculated and the results are verified by comparison with experimental result. The radial and axial electromagnetic forces are calculated over the transformer coils and the effect of asymmetrical of winding is analyzed
Keywords :
coils; electromagnetic forces; fault diagnosis; finite element analysis; magnetic leakage; power transformers; transformer windings; FEM; design process; electromagnetic force analysis; finite element method; leakage reactance; magnetic vector potential; post processing procedures; short circuit reactance; three phase transformer; transformer coils; two dimensional planar models; Circuits; Coils; Electromagnetic analysis; Electromagnetic forces; Finite element methods; Magnetic analysis; Manufacturing processes; Phase transformers; Process design; Virtual manufacturing;
Conference_Titel :
Electrical Machines and Systems, 2005. ICEMS 2005. Proceedings of the Eighth International Conference on
Conference_Location :
Nanjing
Print_ISBN :
7-5062-7407-8
DOI :
10.1109/ICEMS.2005.202854
