Results 111 to 120 of about 108,399 (163)

Development of epoxy/BN composites with high thermal conductivity and sufficient dielectric breakdown strength part II-breakdown strength

IEEE Transactions on Dielectrics and Electrical Insulation, 2011
The aim of this research is to find a way to achieve the epoxy composites with high thermal conductivity and acceptable dielectric breakdown (BD) strength. A value 12.3 W/m·K is the highest thermal conductivity obtained for epoxy composite in Part I.
Yoshimichi Ohki, Masahiro Kozako, Toshikatsu Tanaka   +2 more
exaly   +2 more sources

Nanolaminates: Increasing Dielectric Breakdown Strength of Composites

ACS Applied Materials & Interfaces, 2012
Processable, low-cost, high-performance hybrid dielectrics are enablers for a vast array of green technologies, including high-temperature electrical insulation and pulsed power capacitors for all-electric transportation vehicles. Maximizing the dielectric breakdown field (E(BD)), in conjunction with minimization of leakage current, directly impacts ...
Scott P, Fillery, Hilmar, Koerner, Lawrence, Drummy, Erik, Dunkerley, Michael F, Durstock, Daniel F, Schmidt, Richard A, Vaia   +6 more
openaire   +2 more sources

The breakdown strength of commercial polyethylene

1956 Conference on Electrical Insulation, 1956
Most available dielectric strength data for polyethylene apply to laboratory-prepared specimens that have been tested with very special electrodes under highly artificial test conditions. This paper reports certain of the results of extensive impulse tests performed on commercial polyethylene with plane electrodes that approximate the conditions found ...
C. R. Vail, W. F. Gaustex
openaire   +1 more source

Breakdown strength of impregnated capacitor elements

2016 IEEE International Conference on Dielectrics (ICD), 2016
The dielectric strength of unaged and aged capacitor elements is described using a 2-parameters Weibull statistical analysis. The experimental results suggest that aged elements can be split in two populations. The electric stress at the electrode edge is shown to be an important parameter regarding the decrease of dielectric strength.
Christophe Guillermin, Sandrine Fontana
openaire   +1 more source

Oxidation dependence of breakdown strength of XLPE

Conference on Electrical Insulation and Dielectric Phenomena, 2003
It has been shown in a previous study (P. Rohl, 1982) that the breakdown strength of polyethylene increases with increasing oxidation levels. The purpose of the research reported here is to verify this somewhat surprising result. Unlike the earlier work, cross-linked polyethylene (XLPE), the principal insulation used in extruded cables, is utilized ...
G. Gagnon, S. Pelissou, M.R. Wertheimer
openaire   +2 more sources

Effect of the insulator size on the breakdown strength

IEEE 1997 Annual Report Conference on Electrical Insulation and Dielectric Phenomena, 2002
The effect of the specimen size (S) on the dielectric strength E/sub Bb/ is a well known effect that exists whatever the breakdown type: pure vacuum, flashover, bulk breakdown. Eb varies as S/sup -n/. S can be the insulator surface in case of flashover or the insulator thickness in case of bulk breakdown.
G. Damamme, C. Le Gressus
openaire   +1 more source

Dielectric breakdown strength in magnetic fluids

physica status solidi (b), 2003
AbstractThe application of an external magnetic field on the magnetic fluids induces needle like structuralization of magnetic particles. The influence of this aggregation of magnetic particles in an external magnetic field H on the magneto‐dielectric behaviour and dielectric breakdown strength of a transformer oil based magnetic fluids was measured ...
P. Kopčanský, L. Tomčo, K. Marton, M. Koneracká, I. Potočová, M. Timko, J. Jadzyn, G. Czechowski   +7 more
openaire   +1 more source

Nonsustained Breakdowns in Electrical Strength Tests

IEEE Transactions on Power Apparatus and Systems, 1966
A study of nonsustained breakdowns has been made during alternating voltage tests on the electric strength of various commercial insulants in transformer oil and compressed sulphur hexafluoride and nitrogen. Such breakdowns do not cause sustained arcing and current flow.
openaire   +3 more sources

Breakdown strength of nitrogen at high temperatures

Electrical Engineering, 1961
IN A-C circuit-interrupting devices, the post-arc period immediately after current zero is of paramount importance. This period is characterized by the rapid cooling and deionization of the hot gases between the contacts, which build up the dielectric strength of the gap.
A. H. Sharbaugh, P. K. Watson, T. H. Lee, D. R. White, Allan Greenwood   +4 more
openaire   +1 more source

Breakdown-Strength Enhancement of Coaxial-to-Waveguide Adapters

Journal of Communications Technology and Electronics, 2021
An improved structure of a high-power adapter is proposed for broadband matching of coaxial transmission lines and rectangular waveguides with a narrow side wall that are network used in space communication systems. Numerical simulation and optimization of such a microwave two-port are performed with the aid of the finite-element method in a frequency ...
V. V. Komarov, A. I. Korchagin, V. P. Meshchanov   +2 more
openaire   +1 more source