Temperature field simulation of 10kV three-core cable based on finite element method

Temperature i Temperature is an important parameter to reflect the running state of cable. In this paper, the finite element calculation parameters of the three-core cable commonly used in distribution network are established, and the principle of loss calculation in the thermal calculation of temperature field is expounded. In addition, the three-dimensional finite element model of three-core cable is established, and then the temperature field is constructed and the distribution mode of temperature field is analyzed. In each structure layer assignment model good thermal physical parameters, the corresponding materials for conductor temperature is 90 ?C temperature field distribution, which shows three core cable internal temperature field of the center is the hottest temperature,. And in the direction of heat transfer to the cable skin, there is always a temperature gradient. Finally, the factors affecting the temperature distribution are analyzed.