Title :
New approach for electric breakdown field intensity determination in insulating liquids on an electrostatic energy stored basis
Author_Institution :
Electr. Power Eng. Dept., Zagazig Univ., Egypt
Abstract :
The breakdown for dielectric liquids has been the study of many investigators. Also it has attained the discussion and analysis under different theories. The present approach deals with the analysis of energy stored problem at electrode interface. The sphere plane configuration is used in the present analysis. In this paper the influence of the sphere radius and external applied pressure on the breakdown field has been deduced. The relationship between the square of the breakdown field intensity and electrode radius assumes similar characteristics as Paschen´s curve with a minimum value at critical sphere radius, which differs from one dielectric liquid to another, depending on the surface tension pressure, liquid density and gravity
Keywords :
dielectric liquids; electric breakdown; electric strength; electrodes; electrostatics; insulation testing; surface tension; Paschen´s curve; electric breakdown field intensity; electrode interface; electrode radius; electrostatic energy stored basis; external applied pressure; insulating liquids; liquid density; sphere plane configuration; sphere radius; surface tension pressure; Dielectric liquids; Dielectrics and electrical insulation; Differential equations; Electric breakdown; Electrodes; Gas insulation; Permittivity; Region 1; Region 2; Surface tension;
Conference_Titel :
Electrical Insulation, 1994., Conference Record of the 1994 IEEE International Symposium on
Conference_Location :
Pittsburgh, PA
Print_ISBN :
0-7803-1942-7
DOI :
10.1109/ELINSL.1994.401429
