Three core cable hot field distribution and coaxial heat road model feasibility study

Author

Hu Qiannan ; Liu Gang ; Ye Xiaojun ; Yan Lanfeng

Author_Institution

Sch. of Electr. Power, South China Univ. of Technol., Guangzhou, China

fYear

2013

fDate

21-25 July 2013

Firstpage

1

Lastpage

5

Abstract

10 kV three-core XLPE cables are widely used in network distribution and transmission. Their capacity will directly affect the reliable operation of the transmission line. Currently, the carrying capacity of 10 kV three-core cable is low and they often full load or overload operation. Therefore, its failure rate is much higher than the high-voltage single-core cable. It is necessary to study the three-core cable internal thermal field distribution and the feasibility of coaxial treatment of the three-core cable in modeling its thermal circuit. In this paper, use the finite element method to simulate the model of three-core cable. Found out the thermal field distribution of 10kV three-core cable, and verified it through the experimental data. Proved that there is a isothermal area in the middle of the cable which is enclosed by the three cores. It makes feasible for the coaxial treatment of the three-core cable and help to simplify the thermal circuit model of three-core cable.

Keywords

XLPE insulation; coaxial cables; coaxial waveguides; finite element analysis; power cables; power transmission lines; coaxial heat road; coaxial treatment; finite element method; high-voltage single-core cable; hot field distribution; isothermal area; network distribution; network transmission; thermal circuit; thermal field distribution; three-core XLPE cables; transmission line; voltage 10 kV; Conductors; Electrical resistance measurement; Graphics; Optical fiber cables; Optical fiber sensors; Surface resistance; cable axis; conductor temperature; experimental research; identical temperature zone; temperature field; temperature measuring optical fiber; three-core cable;

fLanguage

English

Publisher

ieee

Conference_Titel

Power and Energy Society General Meeting (PES), 2013 IEEE

Conference_Location

Vancouver, BC

ISSN

1944-9925

Type

conf

DOI

10.1109/PESMG.2013.6672371

Filename

6672371