Calculation of conductor temperatures and ampacities of cable systems using a generalized finite difference model

Author

Hiranandani, Ajit

Author_Institution

Detroit Edison Co., MI, USA

Volume

6

Issue

1

fYear

1991

fDate

1/1/1991 12:00:00 AM

Firstpage

15

Lastpage

24

Abstract

The objective of this study is the development of generalized two-dimensional finite-difference model (FDM) for the calculation of conductor temperatures and ampacities of a cable-system with separation between the cables ranging from direct contact to a finite distance. The heat-sources or sinks which are the conductors are represented in the model as a two-dimensional finite-difference thermal resistance mesh, which is solved by iteration using the digital computer. The effects on conductor temperature due to skin effect, eddy currents, and associated losses have also been included in the analysis for completeness

Keywords

conductors (electric); difference equations; electric current measurement; power cables; power engineering computing; temperature measurement; FDM; ampacity calculation; cable systems; conductor temperatures; eddy currents; generalized 2D finite difference model; heat sinks; losses; skin effect; thermal resistance mesh; Cables; Conductors; Eddy currents; Finite difference methods; Heat sinks; Resistance heating; Skin effect; Temperature distribution; Thermal conductivity; Thermal resistance;

fLanguage

English

Journal_Title

Power Delivery, IEEE Transactions on

Publisher

ieee

ISSN

0885-8977

Type

jour

DOI

10.1109/61.103717

Filename

103717