Electric Field Distribution and Dielectric Losses in XLPE Insulation and Semiconductor Screens of High-Voltage Cables

This article presents the electric field distribution E and dielectric losses ?Pdiel. in insulation system of high-voltage cables. Such a consists inner outer semiconductor screens XLPE insulation. The aim this study was to compare values between objects research were cables 110 kV, 220 400 500 kV. geometrical dimensions cables, especially radii individual layers insulation, as well electrical properties XLPE, taken from literature. Semiconductor treated three concentric cylinders. When determining distribution, both permittivity conductivity, which, case screens, play important roles, into account. obtained results prove that Pdiel. are significantly larger than screens. intensity is about four orders magnitude greater Dielectric eight occurring