Experiment of Dielectric Frequency Response for Aged ZnO Surge Arrester

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dc.contributor.authorAiamrungruang, Phitthaya
dc.contributor.authorMethavithit, Winai
dc.contributor.authorPannil, Pittaya
dc.contributor.authorChuayin, Chaitawat
dc.contributor.authorZinck, Matthieu
dc.contributor.authorJeenmuang, Siwakorn
dc.contributor.authorPattanadech, Norasage
dc.contributor.authorBunlaksananusorn, Chanin
dc.date.accessioned2026-08-06T10:49:29Z
dc.date.available2026-08-06T10:49:29Z
dc.date.issued2025-01-01
dc.description.abstractCondition-based monitoring of surge arresters has gained increasing attention in modern power system asset management, especially for medium-voltage equipment. This paper presents an investigation into the dielectric frequency response (DFR) analysis technique as a diagnostic method to evaluate aging and unhealthy conditions in 21-kV metal oxide surge arresters (MOSA). Four types of simulated defects, excessive number of lightning current stress, cracking, moisture ingress, and tracking, were introduced to represent common field failures. The DFR technique enables frequencydomain interpretation of dielectric properties, providing insight into insulation behavior over a wide frequency range. The test results show a significant variation in capacitance and dissipation factor corresponding to different defect types. Among these, moisture ingress exhibited the most severe deterioration. The findings suggest that DFR is a viable offline diagnostic method that can support preventive maintenance strategies for high-voltage surge arresters.
dc.identifier.citation2025 11th International Conference on Engineering Applied Sciences and Technology Iceast 2025 Proceeding, 24-28, 2025
dc.identifier.doi10.1109/ICEAST64767.2025.11088192
dc.identifier.other2-s2.0-105013464856
dc.identifier.urihttps://dspace.kmitl.ac.th/handle/123456789/16529
dc.source2025 11th International Conference on Engineering Applied Sciences and Technology Iceast 2025 Proceeding
dc.subjectaging condition
dc.subjectdielectric frequency response
dc.subjectfrequency domain analysis
dc.subjectinsulation diagnosis
dc.subjectmetal oxide surge arrester
dc.titleExperiment of Dielectric Frequency Response for Aged ZnO Surge Arrester
dc.typeConference Paper

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