Calculation of thermal fields of underground cable systems with consideration of structural steels constructed in a duct bank

Author

Hwang, C.C.

Author_Institution

Dept. of Electr. Eng., Feng Chia Univ., Taichung, Taiwan

Volume

144

Issue

6

fYear

1997

fDate

11/1/1997 12:00:00 AM

Firstpage

541

Lastpage

545

Abstract

Structural steels are used in underground cable systems to provide a high degree of mechanical protection for electrical cables. An accurate prediction of the temperature distribution of the system needs to include not only the effect of the total cable electrical losses but the eddy current losses induced in the steel. A finite element method is proposed to evaluate the losses generated in the conductors and in the steels, these are then used as the heat sources for thermal analysis. Several steel arrangements of a cable system are solved and compared. The results are useful for the design of a cable duct bank which uses structural steels

Keywords

eddy current losses; finite element analysis; power cables; protection; steel; temperature distribution; thermal analysis; underground cables; conductors; duct bank; eddy current losses; finite element method; heat sources; mechanical protection; structural steels; temperature distribution; thermal analysis; thermal fields calculation; total cable electrical losses; underground cable systems;

fLanguage

English

Journal_Title

Generation, Transmission and Distribution, IEE Proceedings-

Publisher

iet

ISSN

1350-2360

Type

jour

DOI

10.1049/ip-gtd:19971265

Filename

645967