Studies on Electrolytic Corrosion of Hardware of DC Line Insulators

Electrolytic corrosion of suspension insulator hardware is a wellknown problem with HVDC lines. The development of sacrificial zinc sleeved insulators to minimize these problems and the in-service experience with them is described. This experience is based mainly on the operation of the ±250-kV HVDC...

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Bibliographic Details
Published inIEEE transactions on power apparatus and systems Vol. PAS-104; no. 3; pp. 645 - 654
Main Authors Crabtree, I.M., Mackey, K. J., Kito, K., Naito, K., Watanabe, A., Irie, T.
Format Journal Article Conference Proceeding
LanguageEnglish
Published New York, NY IEEE 01.03.1985
Institute of Electrical and Electronics Engineers
Subjects
Applied sciences
Contamination
Corrosion
Dielectrics and electrical insulation
Direct current networks
Electrical engineering. Electrical power engineering
Electrical power engineering
Electrodes
Exact sciences and technology
Hardware
HVDC transmission
Porcelain
Power networks and lines
Power transmission lines
Protection
Zinc
Electrodes
Insulator
Corrosion
High voltage
Direct current
Deterioration
Direct current line
Protection
Zinc
Power transmission line
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Summary:Electrolytic corrosion of suspension insulator hardware is a wellknown problem with HVDC lines. The development of sacrificial zinc sleeved insulators to minimize these problems and the in-service experience with them is described. This experience is based mainly on the operation of the ±250-kV HVDC transmission line in New Zealand but includes information from the USA and Japan. The paper also refers to detailed investigation into the mechanism of electrolytic corrosion of DC insulator hardware and the possibility of developing an improved insulator for use in areas where contamination is very heavy.
ISSN:0018-9510
2995-6323
DOI:10.1109/TPAS.1985.319000