Simulation study of large power transformer advanced winding model in high frequency

Author

Zhongrong, Xu ; Ju, Tang ; Caixin, Sun ; Li, Peng ; Wenxiong, Peng

Author_Institution

Key Lab. of High Voltage Eng. & Electr. New Technol., Chongqing Univ., China

Volume

3

fYear

2005

Firstpage

654

Abstract

According to the propagation characteristic of high frequency signal in large power transformer winding, an advanced winding model is presented in this paper. Utilizing the complex equation and mesh calculation method, the transfer function is deduced theoretically. Frequency characteristic is studied through the small-signal tool in Saber simulation software, meanwhile the characteristic parameters in winding model are discussed to prove how to influence frequency characteristic. According to the variation of the frequency characteristic, it could improve measurement accuracy of partial discharge (PD) on-line monitoring and winding deformation for large power transformer.

Keywords

partial discharge measurement; power transformer insulation; transfer functions; transformer windings; Saber simulation software; complex equation; high frequency advanced winding; large power transformer winding; mesh calculation method; online monitoring; partial discharge measurement; propagation characteristic; transfer function; winding deformation; Equations; Fault location; Frequency measurement; Monitoring; Partial discharge measurement; Partial discharges; Power measurement; Power transformer insulation; Power transformers; Windings;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Insulating Materials, 2005. (ISEIM 2005). Proceedings of 2005 International Symposium on

Print_ISBN

4-88686-063-X

Type

conf

DOI

10.1109/ISEIM.2005.193454

Filename

1496258