FE-based equivalent Circuits for simulating transformer internal Faults

Author

Hu, Guanzhong ; Yao, Yingying ; Ni, Guangzheng ; Yang, Shiyou ; Xie, Junpeng

Author_Institution

Coll. of Electr. Eng., Zhejiang Univ., Hangzhou

fYear

0

fDate

0-0 0

Firstpage

260

Lastpage

260

Abstract

A simple and efficient model is proposed to detect transformer internal faults. The winding´s structure is preciously simulated for FEM. It is easy to be used for a transformer with internal turn-ground and turn-turn fault. Energy perturbation method is employed to calculate the equivalent circuit parameters of the transformer. With these parameters, state equations can be established to study the relationship among the terminal currents, flux and the fault locations. Through test of a transformer, it reveals that the method is reasonable and effective

Keywords

equivalent circuits; fault diagnosis; finite element analysis; transformer testing; transformer windings; FEM simulation; energy perturbation method; equivalent circuit parameter calculation; state equations; terminal currents; transformer internal fault detection; turn-ground faults; turn-turn faults; winding structure; Circuit faults; Circuit simulation; Electrical fault detection; Equations; Equivalent circuits; Fault detection; Power system modeling; Power system simulation; Power transformer insulation; Power transformers;

fLanguage

English

Publisher

ieee

Conference_Titel

Electromagnetic Field Computation, 2006 12th Biennial IEEE Conference on

Conference_Location

Miami, FL

Print_ISBN

1-4244-0320-0

Type

conf

DOI

10.1109/CEFC-06.2006.1633050

Filename

1633050