Leakage current and charge in RTV coated insulators under pollution conditions
| Autor: | Channakeshava, D. Devendranath, A.D. Rajkumar |
|---|---|
| Rok vydání: | 2002 |
| Předmět: |
Materials science
Conductivity Fibre-reinforced plastic engineering.material Silicone rubber Rod Volumetric flow rate chemistry.chemical_compound chemistry Coating Natural rubber visual_art Personal computer Forensic engineering engineering visual_art.visual_art_medium Electrical and Electronic Engineering Composite material |
| Zdroj: | IEEE Transactions on Dielectrics and Electrical Insulation. 9:294-299 |
| ISSN: | 1070-9878 |
| DOI: | 10.1109/94.993747 |
| Popis: | Room temperature vulcanizing (RTV) silicone rubber coating has excellent leakage current suppression characteristics. It is used extensively on porcelain and glass insulators in pollution prone areas as an anti-pollution measure. A pollution aging chamber has been fabricated and an on line 4-channel personal computer (PC) based data acquisition system has been developed to conduct tests on RTV coated porcelain samples. A study of the dependence of the leakage current and the charge on the flow rate, conductivity and pressure of the solution forming the fog is reported. It was observed that a higher charge and a higher average leakage current were obtained at a higher flow rate and a higher conductivity. The results with coated HV insulators are consistent with those published in the literature with RTV coated fiber glass reinforced plastic (FRP) rods. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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