Pipe-type cable losses for balanced and unbalanced currents

Author

Kuang, Jinbo ; Boggs, Steven A.

Author_Institution

Dept. of Electr. & Comput. Eng., Toronto Univ., Ont., Canada

Volume

17

Issue

2

fYear

2002

fDate

4/1/2002 12:00:00 AM

Firstpage

313

Lastpage

317

Abstract

Computations of pipe eddy-current losses have been undertaken for balanced and unbalanced current using a program for transient nonlinear finite element analysis developed by one of the authors. Good agreement is obtained with experimental data from the literature. The computations indicate that the eddy-current losses reach a minimum around 700 A conductor current. Experimental data are available only to about 800 A so that this phenomenon has not been reported previously and may have an impact on rated ampacities for high-pressure fluid-filled (HPFF) cable. Computations for unbalanced currents indicate increased losses with increasing unbalance, as expected

Keywords

eddy current losses; insulating oils; power cable insulation; power cables; balanced currents; conductor current; eddy-current losses; high-pressure fluid-filled cable; pipe-type cable losses; rated ampacities; transient nonlinear finite element analysis; unbalanced currents; Cable shielding; Communication cables; Conducting materials; Conductors; Dielectrics; Magnetic fields; Magnetic flux density; Magnetic shielding; Permeability; Steel;

fLanguage

English

Journal_Title

Power Delivery, IEEE Transactions on

Publisher

ieee

ISSN

0885-8977

Type

jour

DOI

10.1109/61.997889

Filename

997889