Evaluation of the Effects of Voids in Electrical Cables Using COMSOL Multiphysics Software

• Published in: IEEE transactions on dielectrics and electrical insulation Vol. 31; no. 4; pp. 2144 - 2150
• Main Authors: da Silva, Marcus V.S., de Araujo, Olga M. O., de Oliveira, Davi F., Lopes, Ricardo T.
• Format: Journal Article
• Language: English
• Published: New York IEEE 01.08.2024; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Cables; Conductors; Copper; Cross-linked polyethylene; Current density; Electric cables; Electric fields; Finite element analysis; Finite element method; finite element method (FEM); Insulation; Power cables; Software; Time domain analysis; void volume; Voids

This work investigates the impact of voids in three-phase cables. Voids in cross-linked polyethylene (XLPE) insulated cables are identified as weak points, causing operational changes due to partial discharges. Changes in electric field strengths and current density are evaluated in cable models wit...