A method of temperature calculation of power cable conductor

Author

Yang, Wenhu ; Liu, Ying ; Xu, Yang ; Cao, Xiaolong ; Li, Ji ; Xu, Man

Author_Institution

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

fYear

2008

fDate

7-11 Sept. 2008

Firstpage

460

Lastpage

462

Abstract

More and more distributed temperature systems were applied in high voltage cable insulation online monitoring, which make it possible to calculate the conductor temperature accurately and estimate the true carrying capacity of power cable. Applying the mathematics model of heat network, this paper propose a method to calculate conductor temperature from temperature of cable outer sheath, the structure and laying conditions of power cable should be given certainly. Factors that may have effect on the result calculated were also discussed. The test carried out at Cable Research Institute prove that temperature difference of cable conductor between measured on field and calculated by this method can be controlled in 3 K.

Keywords

power cable insulation; conductor temperature; distributed temperature systems; heat network; high voltage cable insulation online monitoring; mathematics model; power cable conductor; Cable insulation; Cable shielding; Conductors; Mathematical model; Mathematics; Power cables; Power system modeling; Temperature; Testing; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Insulating Materials, 2008. (ISEIM 2008). International Symposium on

Conference_Location

Mie

Print_ISBN

978-4-88686-005-7

Electronic_ISBN

978-4-88686-006-4

Type

conf

DOI

10.1109/ISEIM.2008.4664586

Filename

4664586