Leakage resistance of transmission line insulators along the coast

Author

Sugawara, Noriyoshi ; Takayama, Kazuyuki ; Hokari, Kazuo

Author_Institution

Dept. of Electr. Eng., Kitami Inst. of Technol., Hokkaido, Japan

fYear

1992

fDate

7-10 Jun 1992

Firstpage

245

Lastpage

248

Abstract

The leakage resistance of transmission line insulators suspended along the coast decreases with the accumulation of sea salt due to wind from the sea, particularly when the relative humidity is high. To determine the dependence of the insulation properties of a string of three standard suspension insulator units and a long rod insulator on weather conditions, a field test site was installed in Rumoi, an area on the coast of the Sea of Japan with heavy sea-salt contamination, to measure continuously the DC leakage resistance with a personal computer. It was found that the leakage resistance was affected by the wind direction, by relative humidity, and by precipitation

Keywords

environmental degradation; environmental testing; insulation testing; insulators; leakage currents; power overhead lines; accumulation of sea salt; leakage resistance; long rod insulator; precipitation; relative humidity; standard suspension insulator units; suspended along coast; transmission line insulators; weather conditions; wind; Area measurement; Contamination; Electrical resistance measurement; Humidity; Insulation testing; Insulator testing; Measurement standards; Sea measurements; Transmission lines; Wind;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Insulation, Conference Record of the 1992 IEEE International Symposium on

Conference_Location

Baltimore, MD

ISSN

1089-084X

Print_ISBN

0-7803-0649-X

Type

conf

DOI

10.1109/ELINSL.1992.247010

Filename

247010