The electric field intensity amplification initiated by the micropoint on the surface of planeparallel electrodes

Abstract

The research is devoted to the determination of local electric field intensity in the plane-parallel electrode system with the micropoints on the electrodes’ surface. The study has revealed that the electric field intensity at the tops of the Gaussian micropoints on the metal electrodes surface exceeds the average electric field intensity between the plane-parallel electrodes no more than 10-20 times. To consider the real pattern of the electric field in a polymer dielectric it is necessary to take into account not only its distortion by asperities on the surface of the electrodes, but also the result of injection of charge carriers into local states - space charges’ accumulation. New approach to the determination of electric field pattern between plane-parallel electrodes with micropoints enable the exact solution’s finding. Thorough knowledge of processes occurring in the insulation of high voltage equipment clears the way to the equipment’s quality and reliability increasing.