Electric Field distribution on four-bundle conductors in 750 kV AC substation

Author

Liao, Jintao ; Peng, Zongren ; Zhang, Liangxian ; Zhang, Shiling ; Li, Naiyi ; Li, Jing

Author_Institution

State Key Lab. of Electr. Insulation & Power Equip., Xi´´an Jiaotong Univ., Xi´´an, China

fYear

2012

fDate

24-28 July 2012

Firstpage

1

Lastpage

4

Abstract

In high altitude areas of northwest China, the corona activity of conductors is serious in 750 kV AC substations, which may lead to severe electromagnetic environmental problems. According to the research and field experience, determination of adequate parameters of conductors is intended to solve these problems. In this paper, the critical E-Field value is obtained by Peek´s empirical formula and this provides a reference for the optimization. Using a three-dimensional FEM model, factors that affect the E-Field distribution on four-bundle conductors are discussed and recommendations on diameter and bundle spacing are obtained. The optimization can result in reduction of the corona discharge on the conductors. The derived conclusions can provide experiences and references for the design of conductors in 750 kV AC substation.

Keywords

conductors (electric); corona; finite element analysis; optimisation; substations; AC substation; Peek empirical formula; bundle spacing; corona activity; critical E-Field value; electric field distribution; electromagnetic environmental problems; four-bundle conductors; northwest China; three-dimensional FEM model; voltage 750 kV; Conductors; Corona; Lead; Optimization; Poles and towers; Substations; 750 kV AC substation; bundled conductors; corona discharge; surface E-Field intensity;

fLanguage

English

Publisher

ieee

Conference_Titel

Properties and Applications of Dielectric Materials (ICPADM), 2012 IEEE 10th International Conference on the

Conference_Location

Bangalore

ISSN

2160-9225

Print_ISBN

978-1-4673-2852-4

Type

conf

DOI

10.1109/ICPADM.2012.6318942

Filename

6318942