Image analysis of dynamic drop test to measure the retention of hydrophobicity of polymeric insulating materials
| Autor: | Masanori Miwa, Tetsuro Tokoro |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
010302 applied physics
chemistry.chemical_classification Materials science Analytical chemistry Polymer Silicone rubber 01 natural sciences Drop test Measure (mathematics) Stress (mechanics) Dc voltage chemistry.chemical_compound chemistry Natural rubber visual_art 0103 physical sciences Electrode visual_art.visual_art_medium Composite material 010306 general physics |
| Zdroj: | 2017 International Symposium on Electrical Insulating Materials (ISEIM). |
| Popis: | Since silicone rubber has good hydrophobicity, lightweight and stain-resistant, it is used for polymeric outdoor insulators. However, we have not evaluated the retention of hydrophobicity under AC and DC voltage stress yet. Therefore, CIGRE starts Dynamic Drop Test (DDT) which is still under specification for Round Robin Tests. In this paper, we can evaluate time variations of hydrophobicity by applying image analysis during the DDT. Image analysis is able to measure the change of maximum water droplet length from top electrode and the maximum water droplet length follows the retention state of the hydrophobicity of polymeric insulating materials. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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