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Leakage current analysis for monitoring the conditions of polymer insulators

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2 Author(s)
S. Kumagai ; Dept. of Electr. & Electron. Eng., Akita Univ., Japan ; N. Yoshimura

Leakage current on contaminated polymer insulators was analyzed using digital signal processing techniques. Salt-fog tests with non-soluble deposit were conducted in a laboratory, during which leakage current was separated into conductive, dry-band arc and their transition components. The time-integrated value (cumulative charge) of each component was measured. A prototype of artificial neural network-based system that can estimate hydrophobic states and contamination levels at the surface of polymer insulators by employing leakage current information was constructed

Published in:

Electrical Insulating Materials, 2001. (ISEIM 2001). Proceedings of 2001 International Symposium on

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