Title :
Mechanism for transition from branch to bush electrical tree
Author :
Jiang, Grace ; Boggs, Steven
Author_Institution :
Electr. Insulation Res. Center, Connecticut Univ., Storrs, CT, USA
Abstract :
A mechanism is proposed for the transition from branch to bush-type electrical tree growth electric fields above a critical Laplacian field, a hypothesis which Dissado (1994) has shown can explain a wide range of observed treeing-related phenomena. The reduction in tree growth results from a combination of the high limiting electric field at high frequencies, high electric field, high space charge density, and the electro-mechanical and electro-thermal phenomena which result therefrom
Keywords :
electric fields; electrical conductivity; high field effects; space charge; trees (electrical); branch electrical tree; bush electrical tree; critical Laplacian field; electric fields; electrical tree growth; electro-mechanical phenomena; electro-thermal phenomena; high electric field; high space charge density; Conductivity; Dielectrics; Frequency; Laplace equations; Power dissipation; Space charge; Temperature distribution; Thermal stresses; Trees - insulation; Voltage;
Conference_Titel :
Electrical Insulation and Dielectric Phenomena, 1995. Annual Report., Conference on
Conference_Location :
Virginia Beach, VA
Print_ISBN :
0-7803-2931-7
DOI :
10.1109/CEIDP.1995.483575
