Experimental investigation on breakdown characteristics of sand, bentonite and their mixes
| Autor: | Mahdi Izadi, Chandima Gomes, Jasronita Jasni, Mohd Zainal Abidin Ab Kadir, Hashim Hizam, Riyadh Z. Sabry |
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| Rok vydání: | 2018 |
| Předmět: |
010302 applied physics
Permittivity Materials science Soil test 020209 energy 02 engineering and technology Condensed Matter Physics 01 natural sciences Grain size Surfaces Coatings and Films Electronic Optical and Magnetic Materials Volume (thermodynamics) Electrical resistivity and conductivity 0103 physical sciences Bentonite 0202 electrical engineering electronic engineering information engineering Breakdown voltage Texture (crystalline) Electrical and Electronic Engineering Composite material Biotechnology |
| Zdroj: | Journal of Electrostatics. 93:79-84 |
| ISSN: | 0304-3886 |
| DOI: | 10.1016/j.elstat.2018.04.001 |
| Popis: | Experimental work conducted on the impact of soil and bentonite on transient performance of grounding systems has been reported. Three soil samples were tested after classifying them under their texture and grain size. Resistivity and permittivity were found to decrease with frequency, in all samples. The resistivity of sand-bentonite mixed at 1:1 ratio by volume, was decreased by 86% compared to that of sand whereas the breakdown voltage was decreased by 20.5% for positive and 30% for negative impulses, compared with the same parameters of sand. Air-voids may be playing an important role in the breakdown process. |
| Databáze: | OpenAIRE |
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