Title :
Effect of electrode shape, material and chemical structure on electric strength of some liquid hydrocarbons
Author :
Husain, Ekram ; Islam, Syed Mofizul
Author_Institution :
Coll. of Eng., Sultan Qaboos Univ., Muscat, Oman
Abstract :
The power frequency insulation breakdown phenomena in pure hydrocarbon liquids including straight, branched, and ring-type chemical structures is investigated. The electric strength of n-pentane, n-hexane, n-heptane, benzene, toluene, xylene, and 2,2,4-trimethyl pentane was determined using 13-mm-diameter spheres of brass, copper, and aluminium. In order to study the effect of electrode material and shape on breakdown strength, different shapes of electrodes of commonly used metals were investigated, n-hexane with a sphere-plane arrangement yields maximum electric strength and n-pentane with a point-point arrangement yields minimum electric strength. The electric strength is very much dependent on electrode material and shape. The electric strength varies substantially as the chemical structure of these liquids branches out
Keywords :
electric breakdown of liquids; electric strength; organic compounds; organic insulating materials; 2,2,4-trimethyl pentane; benzene; breakdown strength; electric strength; electrode chemical structure; electrode material; electrode shape; liquid hydrocarbons; n-heptane; n-hexane; n-pentane; point-point arrangement; power frequency insulation breakdown phenomena; sphere-plane arrangement; toluene; xylene; Aluminum; Chemicals; Copper; Dielectric liquids; Electric breakdown; Electrodes; Frequency; Hydrocarbons; Insulation; Shape;
Conference_Titel :
Conduction and Breakdown in Dielectric Liquids, 1990. ICDL 1990. Conference Record., 10th International Conference on
Conference_Location :
Grenoble
DOI :
10.1109/ICDL.1990.202964
