Title :
Non-uniform field breakdown of gases
Author :
Drapeau, J.F. ; Olivier, G. ; Gervais, Y.
Author_Institution :
Dept. of Electr. Eng., Ecole Polytech. de Montreal, Que., Canada
Abstract :
The empirical breakdown law is extended to the evaluation of breakdown voltage under nonuniform field conditions. The effects of pressure and gap length are investigated. It is shown that, in nonuniform field conditions, the exponential relation between breakdown voltage and molecular density (pressure) is not affected. However, the different gases do not have the same behaviour under nonuniform field configuration. In particular, the disruptive voltage of Freons is greatly reduced by the nonuniformity of the field
Keywords :
electric breakdown of gases; gaseous insulation; Freons; breakdown voltage; empirical breakdown law; gap length; molecular density; nonuniform field; pressure; Breakdown voltage; Carbon dioxide; Electric breakdown; Electrodes; Equations; Gases; Laboratories; Nitrogen; Stress; Testing;
Conference_Titel :
Electrical Insulation and Dielectric Phenomena, 1988. Annual Report., Conference on
Conference_Location :
Ottawa, Ont.
DOI :
10.1109/CEIDP.1988.26339