The Study Method of Electric Field Stress Control

Abstract

This research present about the study methods to reduce the electric field stress in the cylindrical shape tested object which is mostly used in high voltage. These methods are to put corona shield in each position on the model and to separate the layers and put electrode in between the layers in order to distribute voltage and decrease electric field to reduce the risk of the high voltage device breakdown. The study of this research uses acrylic tube that has diameter of 10 cm, length of 30 cm, and thickness of 0.3 cm. It also uses electrode corona shield and sharp rod tip as Aluminum. The way in which the voltage gets distributed and the density of the electric field of the tested object will be analyzed by finite element program before the real test. The result of the experiment suggested that in the case of one – two –and three layer tube, the presence of corona shield increased breakdown voltage value more than the absence of corona shield. In the case of three layers tube, the corona shield resulted in a higher breakdown voltage value than in one and two layer tube. Also, when corona shield was being positioned on the middle layer in the case three layer, the breakdown voltage value is lower than three layer models