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Polymer nanocomposites have been identified to possess superior electrical insulation properties compared to its base polymer. However, weak interfacial interaction between the nanoparticles and the host polymer matrices would result in poor insulation properties. In this study, the surfaces of Boron Nitride (BN) nanoparticles were treated with atmospheric pressure plasma discharge to strengthen the...
Nanofluids have been identified to be one of the suitable approaches to increase the breakdown strength of transformer oil. However, the nanofluids tend to form sediment which nullifies its full capabilities in increasing the electrical properties such as higher AC breakdown strength. In view of foregoing, this paper presents an approach to enhance the AC breakdown strength of the transformer oil...
Electrical tree initiation voltage and tree propagation length for unfilled silicone rubber, silicone rubber nanocomposites filled with 1% and 3% of OMMT and SiO2 was presented in this paper. This study investigates the capabilities of OMMT and SiO2 in silicone rubber in order to inhibit the growth of electrical treeing. From the result of this study has indicated that in the filled nanocomposite...
In this paper, the effect of lightning on a gas pipelines is investigated. The metallic pipelines were modelled as a short transmission line of PI-circuit model. A switch is represented as a pair of sphere-gaps and is used to model side-flash and insulation breakdown of air. The lightning strike leader is represented by a simple high current source generation with DC source and other elements. Results...
Power stations may face huge losses and damage when struck by lightning. Much effort has been carried out to find an alternative to the conventional lightning air terminal for direct protection to power stations. One of the alternative is to modify the tip configuration of conventional air terminals to enable it to be better inceptor. This paper looks into such possibility by designing and testing...
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