THERMAL STATE OF A POLYMER DIELECTRIC LAYER WITH DIELECTRIC CHARACTERISTICS THAT DEPEND SIGNIFICANTLY ON TEMPERATURE

Based on a constructed mathematical model that describes, at alternating voltage, the steady thermal state of a plane homogeneous layer of a polymer dielectric with a nonmonotonous dependence of dielectric properties on temperature, an integral relation has been obtained that accounts for nonuniform distribution of electric fi eld strength over the layer thickness and for possible change of the thermal conductivity of a dielectric with temperature. A quantitative analysis has been made of the integral relation, intervals have been established that correspond to the existence of stable temperature distribution in the dielectric layer, and a condition was determined under which a state of thermal breakdown of the dielectric occurs
   
Author:  V. S. Zarubin and G. N. Kuvyrkin
Keywords:  dielectric, thermal state, mathematical model, integral relation, thermal breakdown of a dielectric
Page:  1109