Orovwode, H. E. and Matthew, Simeon and Amuta, Elizabeth and Olanipekun, Ayorinde J. and Thompson, Tosin (2024) Fabrication and investigation of local clay-based insulators for high voltage applications. COGENT ENGINEERING, 11 (1).
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Abstract
Nigeria has a large deposit of clay which is the major raw material for the fabrication of porcelain insulators for high voltage applications. However, the country depends largely on imported porcelain insulators to meet its high voltage needs even in the face of the worsening exchange rate of the Nigerian currency compared to the US dollar and other foreign currencies. As a result, it becomes necessary to sort for local means of fabricating high voltage pin insulators from locally available raw materials. In this study, clay sourced from three different geographical locations (Auchi, Ikorodu, and Ota) are used to fabricate three samples of high voltage insulators. The fourth sample of insulator is also fabricated from the Ota clay with Plaster of Paris (POP) as an additive to enhance workability. The physical and electrical properties of the insulator samples are investigated and compared with imported porcelain insulators. The results show that the insulator fabricated using the clay from Auchi has the highest breakdown voltage of 5 kV and lowest leakage current of 2mA and thus can be adopted for low-tension insulation instead of the high-tension insulation speculated from the onset of the research.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Clay insulator; high voltage system; bisque firing; glazing; dielectric propertie |
| Subjects: | Q Science > QC Physics T Technology > TK Electrical engineering. Electronics Nuclear engineering |
| Divisions: | Faculty of Engineering, Science and Mathematics > School of Electronics and Computer Science |
| Depositing User: | Patricia Nwokealisi |
| Date Deposited: | 09 Dec 2024 11:25 |
| Last Modified: | 09 Dec 2024 11:25 |
| URI: | http://eprints.covenantuniversity.edu.ng/id/eprint/18647 |
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