| Autor: |
Innocent E. Davidson, Patrick Taiwo Ogunboyo, Olanrewaju A. Lasabi |
| Rok vydání: |
2017 |
| Předmět: |
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| Zdroj: |
2017 IEEE 3rd International Conference on Electro-Technology for National Development (NIGERCON). |
| DOI: |
10.1109/nigercon.2017.8281955 |
| Popis: |
Insulators are essential components for electric power transmission, especially in high voltage direct current (HVDC) transmissions. They are expected to operate effectively at all times, even in harsh weather and environmental conditions (wind, contamination and humidity) where they are subjected to various stresses. This paper presents the effects of contaminants at different levels of conductivity on both electric field and current density distribution along a 22 kV silicon rubber insulator. A 2D model of the insulator was developed using a FEM software package: FEMM 4.2. The model incorporates the real dimensions insulator geometry and the material properties. The simulation was carried out on a clean and contaminated SIR insulator at the rated insulator direct current voltage level. The areas where the maximum field intensity occurred have been studied for all surface conditions. The results show that both the intensity of electric field and current density increases with an increase in surface conductivity. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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