Back to Search
Start Over
The Effects of Corrosive Sulfur in Bushing: Corrosion of Aluminum Foil and its Effect of Oil-Paper Insulation
- Source :
- IEEE Access, Vol 7, Pp 143735-143741 (2019)
- Publication Year :
- 2019
- Publisher :
- IEEE, 2019.
-
Abstract
- Failures of bushing caused by corrosive sulfur has gradually appeared in recent years. Apart from copper and sulfur, certain amount of aluminum was also found both in oil and paper after disassembling. The corrosion mechanism of the aluminum foil and its effect on oil-paper insulation were unknown. In this study, series of sulfur corrosion experiments were taken to investigate the sulfur corrosion of aluminum foil. The results showed the aluminum foil could certainly be corroded in oil containing corrosive sulfur (DBDS). Thermal products of insulting paper triggered the corrosion by removing the alumina film on the surface. Then, the contact corrosion occurred between aluminum and DBDS. In addition, the mechanisms of corrosion products generation both in oil and on paper were studied. The corrosion products in oil was DBDS-Al(3,4) and that on paper was RCOOAln. It caused the decrease of electrical properties of oil-paper. Particularly, the dielectric loss of oil and paper were dramatically enhanced.
- Subjects :
- Aluminum foil
inorganic chemicals
Materials science
General Computer Science
chemistry.chemical_element
02 engineering and technology
Dielectric
01 natural sciences
Corrosion
Aluminium
Corrosive sulfur
0103 physical sciences
General Materials Science
corrosion products
010302 applied physics
effect
Metallurgy
General Engineering
021001 nanoscience & nanotechnology
Copper
Sulfur
chemistry
Bushing
Dielectric loss
oil-paper insulation
lcsh:Electrical engineering. Electronics. Nuclear engineering
0210 nano-technology
aluminum foil
lcsh:TK1-9971
Subjects
Details
- Language :
- English
- ISSN :
- 21693536
- Volume :
- 7
- Database :
- OpenAIRE
- Journal :
- IEEE Access
- Accession number :
- edsair.doi.dedup.....bc8e2a6278c3c8d4774a54902524aa65