Reducing Ice Accumulation on Insulators by Applying Semiconducting RTV Silicone Coating

Author

Liao, Weiyan ; Jia, Zhidong ; Guan, Zhicheng ; Wang, Liming ; Yang, Jie ; Fan, Jianbin ; Su, Zhiyi ; Zhou, Jun

Author_Institution

Tsinghua Univ. Shenzhen, Shenzhen

Volume

14

Issue

6

fYear

2007

fDate

12/1/2007 12:00:00 AM

Firstpage

1446

Lastpage

1454

Abstract

Ice accumulation on high voltage insulators can cause accidents by flashover across the ice-covered insulators. The ice accumulation can be reduced by changing the insulator surface properties by application of a semiconducting RTV silicone coating. This method is based on the hydrophobicity and semiconductivity properties of the coating. The mechanism for reducing ice accretion is analyzed theoretically. Experimental results are presented to validate the effectiveness of the semiconducting RTV coating at reducing ice on insulator strings. The results show that the coating on the insulators delays ice formation and reduces the amount of ice.

Keywords

coating techniques; flashover; ice; insulators; silicone insulation; flashover; high voltage insulators; hydrophobicity properties; ice accumulation reduction; ice-covered insulators; semiconducting RTV silicone coating; semiconductivity properties; Accidents; Coatings; Dielectrics and electrical insulation; Flashover; Ice surface; Pollution; Porcelain; Semiconductivity; Surface contamination; Voltage;

fLanguage

English

Journal_Title

Dielectrics and Electrical Insulation, IEEE Transactions on

Publisher

ieee

ISSN

1070-9878

Type

jour

DOI

10.1109/TDEI.2007.4401227

Filename

4401227