Thermal Analysis of the Medium Voltage Cable

The use of high voltage power cables in distribution and transmission networks is still increasing. As a result, the research on electrical performance cable lines up to date. In paper, an analytical method determining losses temperature medium was proposed. main feature direct including skin proximity effects. Then Joule law used express conductor screen, Fourier-Kirchhoff equation applied find out cable. focused with isolated screen return current taken into account. proposed tested by using commercial COMSOL software(5.6/COMSOL AB, Stockholm, Sweden) as well carrying laboratory measurements. Furthermore, results obtained via were compared those given literature. differences between values calculated method, numerical computations experimentally do not exceed 10%. suitable prediction good accuracy.