Title :
A simple model to estimate the dielectric strength of simple gases
Author :
Sandré, E. ; Aslanides, A.
Author_Institution :
EDF R&D, Electr. Equip. Lab., Moret Sur Loing, France
Abstract :
We present a simple model to estimate the dielectric strength of gases. This model is based on a classical mechanics approach for which both the electrons and the molecules in the gas have a finite size. Based on an avalanche mechanism and on an estimation of the molecular size, we report an expression of the dielectric strength which is proportional to the pressure, to the distance separating the electrodes and to the molecular radius which is a simplified description for the detachment cross section.
Keywords :
avalanche breakdown; electric strength; gaseous insulation; avalanche mechanism; breakdown voltage; classical mechanics approach; detachment cross section; dielectric strength; electrode separation distance; molecular radius; molecular size; simple gases; simple model; Acceleration; Dielectric breakdown; Electric shock; Electrodes; Electrons; Gases; Ionization; Kinetic energy; Laboratories; Research and development;
Conference_Titel :
Electrical Insulation and Dielectric Phenomena, 2002 Annual Report Conference on
Print_ISBN :
0-7803-7502-5
DOI :
10.1109/CEIDP.2002.1048908
