Analysis of the propagation characteristics of buried cables in imperfect earth

Author

Papadopoulos, Theofilos A. ; Tsiamitros, Dimitris A. ; Papagiannis, Grigoris K.

Author_Institution

Dept. of Electr. & Comput. Eng., Aristotle Univ. of Thessaloniki, Thessaloniki, Greece

fYear

2009

Firstpage

1

Lastpage

8

Abstract

The influence of the imperfect earth on the propagation characteristics of underground single bare conductors and single core insulated cables arrangements is investigated in this paper. The propagation characteristics are derived through the per-unit-length parameters of the conductors, using new expressions for the earth impedance and admittance correction terms. The influence of the earth electromagnetic and geometric configuration properties are thoroughly analyzed and the results are compared to the corresponding ones obtained by other approximate approaches. Finally, the buried conductor parameters calculated by the proposed method are used in a model, simulating typical fast transients.

Keywords

earthing; electromagnetic wave propagation; underground cables; underground transmission systems; admittance correction; buried cables; earth impedance; imperfect earth; propagation characteristics; underground single bare conductors; Admittance; Cable insulation; Conductors; Earth; Electromagnetic propagation; Electromagnetic transients; Frequency; Impedance; Power system modeling; Topology; buried conductors; power cables; transient analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

PowerTech, 2009 IEEE Bucharest

Conference_Location

Bucharest

Print_ISBN

978-1-4244-2234-0

Electronic_ISBN

978-1-4244-2235-7

Type

conf

DOI

10.1109/PTC.2009.5281842

Filename

5281842