The Effects of the Span Configurations and Conductor Sag on the Electric-Field Distribution Under Overhead Transmission Lines

Author

El Dein, Adel Z. ; Wahab, Mohamed A A ; Hamada, Mohamed M. ; Emmary, Tamer H.

Author_Institution

Dept. of Electr. Eng., South Valley Univ., Aswan, Egypt

Volume

25

Issue

4

fYear

2010

Firstpage

2891

Lastpage

2902

Abstract

The precise evaluation and mitigation of the electric field generated by overhead transmission lines has gained great interest due to its impact on health and environmental issues. This paper presents a more generalized technique to calculate the electric field generated by power transmission lines in three dimension coordinates. This technique has been evolved, formulated, and applied to an Egyptian 500-kV single-circuit transmission line to evaluate the effects of line topology and terrain topography on the computed electric field. The results are compared with those produced by a 2-D technique.

Keywords

electric fields; power overhead lines; power supply quality; conductor sag; electric-field distribution; overhead transmission lines; single-circuit transmission line; span configurations; voltage 500 kV; Analytical models; Computational modeling; Conductors; Electric fields; Electric potential; Magnetic analysis; Mathematical model; Poles and towers; Power engineering and energy; Power generation; Power transmission lines; Surfaces; Topology; Electric field; OHTL; sag effect;

fLanguage

English

Journal_Title

Power Delivery, IEEE Transactions on

Publisher

ieee

ISSN

0885-8977

Type

jour

DOI

10.1109/TPWRD.2010.2051340

Filename

5535232