Results 11 to 20 of about 11,340 (302)
Numerical analysis on space charge and AC-DC combined breakdown strength in polyethylene [PDF]
IEEE Transactions on Dielectrics and Electrical Insulation, 2019 In high voltage direct current (HVDC) power transmission systems, electrical equipment at the valve side usually withstands complex stresses like AC-DC combined voltages. Understanding the charge migration and accumulation characteristics under complex stresses and their influences on the breakdown strength are of great significance.
Chen, Guanghui +3 more
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Energies, 2018 An AC-DC combined voltage is applied to the oil-pressboard insulation near the valve side during the operation of a converter transformer. To study the breakdown characteristics of an oil-pressboard insulation under such voltages, a typical plate ...
Qingguo Chen +3 more
doaj +2 more sources
The influence of titanium dioxide additive on the short-term DC breakdown strength of polyethylene [PDF]
IEEE International Symposium on Electrical Insulation, 2002 The effect of the addition of 1% by weight of titanium dioxide fine particles to low-density polyethylene (LDPE) on the short-term DC breakdown strength of the LDPE was investigated using direct and reverse polarity voltages. The samples used were cylinders of both plain and doped materials, with hemispherically tipped cylindrical electrodes completely
Khalil, M. S +2 more
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Energies, 2017 Breakdown strength is an important electrical property of insulating paper. Oil-impregnated paper of various aging states was prepared. Its breakdown voltage was then measured at pulsating direct current (DC) voltage with various ripple factors, and ...
Jing Zhang +5 more
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High Voltage, 2022 When high‐temperature superconducting (HTS) tapes in high voltage DC HTS devices are quenched, amounts of thermal bubbles are generated in liquid nitrogen (LN2) that will reduce the insulation strength greatly.
Bin Xiang +7 more
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Regulation of PANI nanofiber conductivity and its influence on the DC dielectric properties of LDPE
Polymer Testing, 2021 To study the effect of electrical conductivity of nanomaterials on the space charge accumulation in low density polyethylene (LDPE), doped and dedoped polyaniline (PANI) nanofibers with the same diameter and different conductivity were prepared and added
Chengcheng Zhang +4 more
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Comparative experimental study of DC breakdown strength of Polypropylene film under various layer arrangements [PDF]
EPJ Web of ConferencesThis paper deals with the DC electrical breakdown strength (DC BDS) of polypropylene (PP) film, a material used in high-performance capacitors. The objective of this paper is to compare the DC breakdown strength of PP films of various layer arrangements,
Vaľko Matej +5 more
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IEEE Access, 2020 Polypropylene (PP) material as a DC cable insulation material has great prospects as a recyclable alternative to cross-linked polyethylene. This paper aims at investigate the effect of PP blends crystallinity morphology and trap energy level distribution
Zhaoliang Xing +5 more
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Experimental Study on Trap Characteristics of Nano-Montmorillonite Composite Pressboards
Energies, 2018 To improve space charge properties and the breakdown strength of insulation pressboard, nano-modifications with nano-montmorillonite fillers are developed using nanocomposite techniques in this study.
Qingguo Chen +4 more
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Short-term Breakdown and Long-term Failure in Nanodielectrics: A Review [PDF]
, 2010 Nanodielectrics, which are concentrated in polymer matrix incorporating nanofillers, have received considerable attention due to their potential benefits as dielectrics.
Yunxa Zhang +15 more
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