Flashover improvement of polluted high voltage insulators by nonlinear nanofilled hydrophobic coating

被引：7
作者：
Ibrahim, Mohamed E. [1 ]
Sabiha, Nehmdoh A. [1 ]
Izzularab, Mohamed A. [1 ]
机构：
[1] Menoufia Univ, High Voltage & Dielect Mat Lab, Fac Engn, Shibin Al Kawm 32511, Egypt
来源：
ELECTRIC POWER SYSTEMS RESEARCH | 2016年 / 140卷
关键词：
Coating; Flashover; High voltage insulators; Nanotechnology; PERFORMANCE; SURFACES;
D O I：
10.1016/j.epsr.2016.04.025
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
In this paper, a model for computing the dry band arcing voltage is proposed and verified by experiments on glass specimens coated with the nanofilled material with different characteristics. Such coating is to increase the dry band arcing voltage which leads to a better flashover performance of high voltage insulators. Then, a simple technique to enhance the flashover performance of high voltage insulators is presented. The proposed technique depends on coating only the insulator metal cap and pin. Studying the effect of RTV silicone rubber for metal cap and pin coating is presented and about 200% (on average) flashover performance improvement is achieved. Enhancing the cap and pin coating with a thin layer of the nonlinear nanofilled material, the flashover performance is improved by about 235% (on average). Finally, a model based on developing Obenaus's model for computing the flashover voltage is proposed. A good agreement between experimental and model results is achieved. (C) 2016 Elsevier B.V. All rights reserved.
引用
收藏
页码：821 / 829
页数：9
相关论文
共 24 条
[1]  
Anjana S., 1989, P 6 INT SYM HIGH VOL
[2]   Breakdown characteristics of titanium dioxide-silicone-fluorophlogopite nanocomposite coating [J].
Bai, Yakui ;
Ling, Yunhan ;
Bai, Xinde .
SURFACE & COATINGS TECHNOLOGY, 2011, 205 (16) :4073-4078
[3]   RTV Silicone Rubber Pre-coated Ceramic Insulators for Transmission Lines [J].
Cherney, E. A. ;
El-Hag, A. ;
Li, S. ;
Gorur, R. S. ;
Meyer, L. ;
Ramirez, I. ;
Marzinotto, M. ;
George, J-M. .
IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION, 2013, 20 (01) :237-244
[4]  
Elsaser O., 1999, IEEE INT C EL INS DI, P711
[5]   Modelling of DC arc discharge on ice surfaces [J].
Farzaneh, M ;
Zhang, J .
IEE PROCEEDINGS-GENERATION TRANSMISSION AND DISTRIBUTION, 2000, 147 (02) :81-86
[6]   Arc propagation over electrolytic surfaces under power frequency voltage [J].
Ghosh, PS ;
Chatterjee, N .
IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION, 1996, 3 (04) :529-536
[7]  
Hampton B.F., 1964, PROC, V111, P985, DOI DOI 10.1049/PIEE.1964.0155
[8]   GENRAL CRITERION FOR PREDICTION OF POLLUTION FLASHOVER [J].
HESKETH, S .
PROCEEDINGS OF THE INSTITUTION OF ELECTRICAL ENGINEERS-LONDON, 1967, 114 (04) :531-&
[9]   Nanofilled Nonlinear Coating Material for Improving Proactive Flashover Performance of High Voltage Insulators [J].
Ibrahim, Mohamed E. ;
Sabiha, Nehmdoh A. ;
Izzularab, Mohamed A. .
IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION, 2014, 21 (05) :2156-2163
[10]  
Jolly D., 1974, IEEE PES WIN POW M
123