Title :
Division Director´s Message
Author :
Devendranath, D. ; Channakeshava, G. Girija ; Venkatesulu, B.
Author_Institution :
UHV Res. Lab., Central Power Res. Inst., Hyderabad, India
fDate :
7/1/2002 12:00:00 AM
Abstract :
It is believed that room temperature vulcanizing (RTV) silicon rubber coating is not passive but reacts to its environment. The hydrophobicity of the coating is extremely resilient and can recover under all exposure conditions provided there is adequate rest after removal of the stress (voltage, pollution, UV, etc). The present letter deals with the recovery characteristics of the hydrophobicity of the RTV-coated insulator during a combined continuous voltage and a cyclic low conductive fog application.
Keywords :
ageing; insulator contamination; insulator testing; leakage currents; life testing; silicone rubber insulators; vulcanisation; RTV silicon rubber coating; RTV-coated insulator; aging; continuous voltage application; cyclic low conductive fog application; hydrophobicity; leakage current; pollution; recovery characteristics; room temperature vulcanizing; surface charge; Aging; Coatings; IEC standards; Insulation; Insulator testing; Leakage current; Pollution; Rubber; Silicon; Voltage;
Journal_Title :
Power Engineering Review, IEEE
DOI :
10.1109/MPER.2002.1016846
