Surface Discharges and Flashover Modelling of Solid Insulators in Gases

被引：6
|
作者：
Slama, Mohammed El Amine [1 ]
Beroual, Abderrahmane [2 ]
Haddad, Abderrahmane [1 ]
机构：
[1] Cardiff Univ, Adv High Voltage Engn Ctr, Sch Engn, Queens Bldg Parade, Cardiff CF24 3AA, Wales
[2] Univ Lyon, Lab Ampere, 36 Ave Guy Collongues, F-69130 Ecully, France
来源：
ENERGIES | 2020年 / 13卷 / 03期
关键词：
surface discharge; flashover; gas; modelling; pressure; thermal properties; BREAKDOWN; ARC;
D O I：
10.3390/en13030591
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
The aim of this paper is the presentation of an analytical model of insulator flashover and its application for air at atmospheric pressure and pressurized SF6 (Sulfur Hexafluoride). After a review of the main existing models in air and compressed gases, a relationship of flashover voltage based on an electrical equivalent circuit and the thermal properties of the discharge is developed. The model includes the discharge resistance, the insulator impedance and the gas interface impedance. The application of this model to a cylindrical resin-epoxy insulator in air medium and SF6 gas with different pressures gives results close to the experimental measurements.
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页数：14
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