Topic
Liquid dielectric
About: Liquid dielectric is a research topic. Over the lifetime, 3702 publications have been published within this topic receiving 45150 citations.
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TL;DR: In this paper, the authors investigated the rise of dielectric liquid along a highvoltage electrode and found that the height of the rise was proportional to the square of the applied voltage between the electrodes.
Abstract: The rising effect of dielectric liquids along a high-voltage electrode has been investigated. The height of the rise of dielectric liquid has been found to be proportional to the square of the applied voltage between the electrodes. The measurements of potential distribution have shown that the electric field in the vicinity of the electrode along which dielectric liquid climbs is highly enhanced by the presence of the predominant ions in the liquid. The force exerted to the electrode along which the dielectric liquid climbs has been found to be proportional to e. The analysis of experimental results leads to the conclusion that the origin of the rising effect is attractive electrostatic force. The pumping effect of dielectric liquid into a capillary electrode due to the electric force has been observed.
12 citations
01 Mar 2018
TL;DR: One of the problems faced in the finish electrical discharge machining of cemented carbide is the slow machining speed due to frequent abnormal discharges and concentrated discharge to resolve thi as discussed by the authors.
Abstract: One of the problems faced in the finish electrical discharge machining of cemented carbide is the slow machining speed due to frequent abnormal discharges and concentrated discharge To resolve thi
12 citations
Patent•
29 Sep 1987
TL;DR: In this article, perchloroethylene is combined with an aliphatic hydrocarbon having 7-9 carbon atoms in the chain. The resulting dielectric has improved freezing point and non-flammability characteristics.
Abstract: Dielectric fluid is prepared by combining perchloroethylene with an aliphatic hydrocarbon having 7-9 carbon atoms in the aliphatic chain. The resulting dielectric has improved freezing point and nonflammability characteristics.
12 citations
TL;DR: In this article, experimental measurements of electrode signal noise spectra in an electromagnetic flowmeter designed for flow measurement of the dielectric liquid BP180 were reported. And the design of the flowmeter tube and the detection electronics was described.
12 citations
TL;DR: In this article, the authors presented experimental results of epoxy nano-composites in liquid nitrogen and determined the possible applications of nano composites as insulating material for superconducting equipment.
Abstract: Cryogenic dielectric insulation skills play a significant role in the development of superconducting electric equipment for transmission and distribution electric network. Nowadays, newly developed nano-composites have shown enhanced electrical, thermal, and mechanical properties of polymer insulation materials. And the application of nano-composites in high voltage power systems could be implemented in the near future. Among the various nano-composites, epoxy nano-composites have been paid much attention as a new insulating material for high voltage insulation. In this paper, we presented experimental results of epoxy nanocomposites in liquid nitrogen and determined the possible applications of nano-composites as insulating material for superconducting equipment. In order to determine their dielectric breakdown properties in liquid nitrogen, various kinds of epoxy based nano-composites have been made by mixing SiO2, Al2O3, TiO2 fillers, respectively. AC withstand voltage test and partial discharge (PD) inception voltage tests have been performed to verify the insulation breakdown characteristics of nano-composites in cryogenic environment. Consequently, it was deduced that the breakdown strength of epoxy nano-composites have been improved compared to epoxy with micro-fillers in cryogenic environment. And epoxy nano-composites immersed in liquid nitrogen showed a similar breakdown voltage characteristic when compared with that of insulating oil. In addition, the effects of nano-composites have been varied according to the concentration of nano-fillers and their content of fillers.
12 citations