Title :
Microscopic scenarios for implementing a dynamic model of electric breakdown in a solid insulation system
Author :
Budenstein, P.P.
Author_Institution :
US Army Missile Command, Redstone Arsenal, AL, USA
Abstract :
Microscopic scenarios for electric tree initiation and propagation are developed for the case where electric breakdown occurs in a thick, homogeneous solid dielectric due to the application of a single, steep-fronted impulse. The scenarios treat the electric tree as a high-temperature, high-conductivity, gaseous region that is formed by rapid, localized, energetic dissociation of the dielectric. The scenarios provide perspective on the processes, time scale, roles of geometry and space charge, and degree of localization, thereby providing guidance for modeling electric breakdown in solids
Keywords :
electric breakdown of solids; insulation; modelling; space charge; breakdown modelling; dynamic model; electric breakdown; electric tree initiation; electric tree propagation; geometry; homogeneous solid dielectric; localization; solid insulation system; space charge; steep-fronted impulse; Breakdown voltage; Conductivity; Dielectrics and electrical insulation; Electric breakdown; Electrons; Geometry; Microscopy; Solid modeling; Temperature; Trees - insulation;
Conference_Titel :
Electrical Insulation and Dielectric Phenomena, 1990. Annual Report., Conference on
Conference_Location :
Pocono Manor, PA
DOI :
10.1109/CEIDP.1990.201379
