Results 31 to 40 of about 11,340 (302)
DC Tangential Electric Breakdown Strength of Silicone Rubber Interfaces under dry, wet and oily conditions [PDF]
This research work is a part of an on-going project at NTNU/SINTEF-Energy Research aim- ing at developing new criteria for design of compact high voltage subsea connectors.
Hammerøy, Ole Andre
core +1 more source
The charge transport in polypropylene was studied under DC electric fields at different temperatures. By the experimental measurement and simulation of the BCT model, we studied conduction currents, breakdown strength, and space charge distribution.
Xiying Dai +5 more
doaj +1 more source
DC Dielectric Breakdown Behavior of Thermally Sprayed Ceramic Coatings
Previous studies of dielectric properties of thermally sprayed insulating ceramic coatings are focused on linearly ramped dielectric breakdown strength as well as DC resistivity, relative permittivity and dielectric loss characterizations.
Suhonen, Tomi +3 more
core +2 more sources
DC Breakdown Strength of HVDC XLPE Cable Insulation – Short-term testing of cable peelings [PDF]
I sammenheng med elektrifisering av dagens samfunn, som fører til høyere elektrisitetsbehov og et mål om bærekraftige løsninger, er ekstruderte høyspennings-likestrømskabler (HVDC-kabel) en nøkkelfaktor.
Eilertsen, Anja Kjærnes
core
Dielectric behaviours of bio‐derived epoxy resins from cashew nutshell liquid
In this study, four commercially available bio‐derived epoxy systems (extracted from cashew nutshell liquid) were prepared and characterised. The glass transition temperature (T g), dielectric spectroscopy, DC conductivity and breakdown properties of ...
Mulan Mu, Alun Vaughan
doaj +1 more source
Failure mechanisms of polyimide and perfluoroalkoxy films under high frequency pulses [PDF]
Breakdown behaviors of polyimide and perfluoroalkoxy high temperature films under unipolar and bipolar repetitive pulses are investigated. A bipolar 20kV, 20 kHz and fast dV/dt pulse generator has been designed and built to study the impact of pulse ...
Yin, Weijun +9 more
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Design of ultrabright 270 keV DC photoelectron gun for ultrafast electron diffraction
Compact DC photoelectron guns of high-voltage are highly desired to output ultrabright and ultrashort electron pulses for accessing irreversible processes by using the ultrafast electron diffraction (UED) technique.
Jing Yang +3 more
doaj +1 more source
The converter transformer is a key equipment in high voltage direct current (HVDC) transmission system. Its oil-paper insulation system in the valve winding and outlet bushing experiences AC, DC, AC/DC, and transient impulse voltages simultaneously.
Lin Cheng +6 more
doaj +1 more source
Analysis of real operating condition revealed that HVDC transformers experience combined effect of DC biased AC electric field. The dynamics of pressboard particle in contaminated transformer oil under the influence of DC, AC and DC biased AC electric ...
Mahmud, S. +4 more
core +1 more source
Space charge formation makes it difficult to predict the resulting electric field distribution within HVDC cable insulation. The main purpose of the work presented here has been to experimentally study how the lightning impulse breakdown strength of ...
Olsen, Espen Torlei +2 more
core +1 more source

