Solution for Voltage Distribution in Transformer Winding Based on the Model of Multi-Conductor Transmission Line

Author

Ruan, Ling ; Zhao, Chun ; Du, Zhiye ; Ruan, Jiangjun ; Deng, Wanting ; Shen, Yu

Author_Institution

Hubei Electr. Power Testing & Res. Inst., Wuhan

fYear

2008

fDate

20-22 Dec. 2008

Firstpage

87

Lastpage

91

Abstract

This paper uses multi-conductor transmission line (MTL) to model transformer winding. According to capacitance, inductance and resistance parameter, transmission line equation can be solved by input terminal impedance method. Thus, voltage distribution in transformer winding can be obtained by solving MTL equation. In this paper, only voltage distribution at single frequency excitation is calculated. Then, the calculated voltage distribution is compared with the experimental result. Because PD signal can be separated into superposition of cosine wave by fast Fourier transform(FFT), research on single frequency voltage distribution has important significance on solving voltage distribution of PD signal.

Keywords

fast Fourier transforms; multiconductor transmission lines; power transmission lines; transformer windings; FFT; capacitance; fast Fourier transform; inductance; input terminal impedance method; multiconductor transmission line; partial discharge signal; resistance parameter; single frequency excitation; transformer winding; transmission line equation; voltage distribution; Degradation; Equations; Frequency; Impedance measurement; Multiconductor transmission lines; Partial discharges; Power transformer insulation; Power transmission lines; Voltage; Windings; input terminal impedance method; multi-conductor transmission line; transformer winding; transmission line equation; voltage distribution;

fLanguage

English

Publisher

ieee

Conference_Titel

Computer and Electrical Engineering, 2008. ICCEE 2008. International Conference on

Conference_Location

Phuket

Print_ISBN

978-0-7695-3504-3

Type

conf

DOI

10.1109/ICCEE.2008.104

Filename

4740952