Author(s)

N. Kovac, B. Jajac & D. Poljak

Abstract

The transmission and distribution of electric power with underground cables is closely related with the heat transfer of their surroundings. A finite element approach with the domain optimization is proposed. Such analysis is provided by the use of a FEM software package containing the originally developed automatic mesh generator. An illustrative numerical example dealing with engineering real-life problem is presented with this work. 1 Introduction The power system design is governed by two basic requirements: supply security and aesthetic considerations which are usually satisfied by the use of underground cables, Their ampacity and lifetime is strictly related with the heat transfer capacity of their surroundings. The power cable ampacity has been determined by means of various numerical methods. G. Gela and J.J. Dai [1] use the boundary elem

Keywords