Electric field distribution based on radial nonuniform conductivity in HVDC XLPE cable insulation

The steady-state electric field distribution in a polymeric insulated HVDC cable is determined by the electrical conductivity, which is dependent upon the temperature and electric field in homogeneous cable insulation. In practice, the radial inhomogeneity of the morphological structure and crosslinking byproducts in XLPE insulation will lead to a radial nonuniformity of the conductivity, which ma...