ANALYSIS OF THE ELECTROMAGNETIC FIELD IN CABLE SYSTEMS WITH INSULATION FROM POLYMER MATERIALS

The article is devoted to the calculation of electromagnetic field strength (EMF) in theinsulating material a power cable (SC). magnetic single sample APvPu-101x240/70 was investigated. Theoretical information given for calculating ofan electrostatic axisymmetric based on solution Fredholm integral equations piecewise homogeneous linear polymer insulation with inclusions. Models are constructed forcalculating and analyzing intensity distribution inhomogeneous electric fields dielectricmedium inclusions different areas electrophysical parameters (filling).When EMF passes through various materials filling inclusion, absorption wave energyby these substances observed. Based simulation performed using Comsol program,the analysis at interface dielectric media between spherical micro-inclusionand main performed. It shown that solid dielectrics, conductors, EMFabsorption significant. If meets any conductor, then most its energy absorbed by it.The presence inhomogeneities – inhomogeneity interfacecauses jumps 1/2, 2/3. electricfield voltage defect region were carried out it found increasingSdef, amplitude induction surge (B) first boundary increases.On second border, opposite true. With increasing Sdef. depth inductionfailure increases. However, while maintaining overall picture, values dips withdifferent types different: greatest gradient observed when fillingwith water, smallest carbon plus cross-linked polyethylene (C + SPE). Thus,it can be diagnostic parameter quality IC. results workare interest solving complex problems related aspects electromagneticcompatibility reliability functioning systems.