Results 141 to 150 of about 2,602,019 (170)

Parameters affecting the DC breakdown strength of parylene F thin films

2011 Annual Report Conference on Electrical Insulation and Dielectric Phenomena, 2011
The effect of some experimental parameters (electrode area, thickness, temperature and voltage rising rate) on the breakdown strength of films of poly(α,α, α',α'-tetrafluoro-p-xylylene), a fluorinated parylene (PA-F), has been studied.
Khazaka, Rabih, Bechara, Mireille, Diaham, Sombel, Locatelli, Marie-Laure   +3 more
openaire   +2 more sources

The experimental study of the DC dielectric breakdown strength in magnetic fluids

Journal of Magnetism and Magnetic Materials, 2004
Abstract Magnetic fluids have been studied for use as a high-voltage insulation. High-voltage measurements on magnetic fluids based on transformer oil, as a function of volume concentrations of magnetite particles and applied magnetic field, showed the increase of the DC dielectric breakdown strength opposite transformer oil, if the saturation ...
P. Kopčanský, L. Tomčo, K. Marton, M. Koneracká, I. Potočová, M. Timko   +5 more
openaire   +1 more source

DC breakdown strength of polypropylene films: area dependence and statistical behavior

IEEE Transactions on Dielectrics and Electrical Insulation, 2007
The DC breakdown strengths of 4-15 mum thick capacitor grade polypropylene (PP) films were determined. The measurements were performed with an automatic measurement system using five electrodes with areas between 0.045 and 9.3 cm2. Some samples were studied with larger electrodes. Samples were not aged but were measured as received.
S. Laihonen, U. Gafvert, T. Schutte, U. Gedde   +3 more
openaire   +1 more source

DC breakdown strength of epoxy-boron nitride nanocomposites: Trend and reproducibility

2015 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP), 2015
In this paper, the results of DC breakdown tests on epoxy - boron nitride nanocomposites are presented. Two different synthesis techniques were used for the composite production and each of them resulted in a different particle distribution. The main goal is to evaluate the reproducibility of the experimental results as it is one of the most important ...
I.A. Tsekmes, R. Kochetov, P.H.F. Morshuis, J.J. Smit   +3 more
openaire   +1 more source

The effect of a floating conductor on the breakdown strength of a DC gap at both polarities

IEEE Power and Energy Society Conference and Exposition in Africa: Intelligent Grid Integration of Renewable Energy Resources (PowerAfrica), 2012
This paper presents a preliminary investigation into the effect of a floating conductor on the breakdown strength of a rod-plane gap energised by both positive and negative polarities. This experiment models the scenario of live-line maintenance, therefore providing results for a research into HVDC live-line maintenance, with special reference to the ...
C.L. Hart, K.J. Nixon, I.R. Jandrell
openaire   +1 more source

The Dielectric Breakdown Strength of Magnetic Fluids Based on Transformer Oil

Czechoslovak Journal of Physics, 2004
The DC dielectric breakdown strength of magnetic fluids based on transformer oil TECHNOL US 4000, with different saturation magnetizations, was investigated in various orientations of external magnetic field. It was shown that the dielectric breakdown strength in H∥E is strongly influenced by the aggregation effects.
Peter Kopčanský, Ladislav Tomčo, Karol Marton, Martina Koneracká, Milan Timko, Ivana Potočová   +5 more
openaire   +1 more source

Prebreakdown current and dc breakdown strength of alumina-filled poly(ethylene-co-butyl acrylate) nanocomposites: Part I - breakdown strength

IEEE Transactions on Dielectrics and Electrical Insulation, 2014
Dielectric breakdown strength of poly (ethylene-co-butyl acrylate) (EBA) nanocomposites filled with spherical alumina particles was studied as a function of particle coating, moisture content and the effective specific surface area. Two kinds of alumina nanoparticles were used: NA (25 nm in diameter) or ND (45 nm in diameter). The particles were either
N. Jaeverberg, B. Venkatesulu, H. Edin, H. Hillborg   +3 more
openaire   +1 more source

Short term DC breakdown strength in epoxy based BN nano- and microcomposites

2010 10th IEEE International Conference on Solid Dielectrics, 2010
Nanocomposites have been known in the field of electrical engineering for more than a decade, albeit there are still uncertainties of how the filler properties influence the properties of the composite material. Filler size, shape, aspect ratio and the surface modification, which consequently leads to even dispersion or clusters of particles, are all ...
Thomas Andritsch, Roman Kochetov, Yonas T. Gebrekiros, Peter H. F. Morshuis, Johan J. Smit   +4 more
openaire   +1 more source

DC-breakdown strength of liquid nitrogen under different voltage ramp conditions

Proceedings of 1999 IEEE 13th International Conference on Dielectric Liquids (ICDL'99) (Cat. No.99CH36213), 2003
The prospective use of superconductors with high critical temperature in power electricity needs information about the long term dielectric strength performance in large insulation systems. Liquid nitrogen is a promising cooling and basic insulating agent for fluid-transparent dielectric structures in power apparatus using superconductors with high ...
J. Gerhold, M. Hubmann, E. Telser
openaire   +1 more source

The role of BaTiO/sub 3/ in modifying the dc breakdown strength of LDPE

IEEE Transactions on Dielectrics and Electrical Insulation, 2000
In the present paper, the effect of the addition of fine particles 1%wt BaTiO/sub 3/ to plain low-density polyethylene (LDPE) on the short-term dc breakdown strength of LDPE is investigated. The Weibull plots are used to analyze the breakdown test results.
openaire   +1 more source