Results 21 to 30 of about 11,340 (302)

DC breakdown characteristics of XLPE/BNNS nanocomposites considering BN nanosheet concentration, space charge and temperature

open access: yesHigh Voltage, 2020
Breakdown failure in insulation material is one of the key problems that threaten the safe operation of high-voltage direct current cable. In this work, the effect of boron nitride nanosheets (BNNSs) concentration, space charge and temperature on DC ...
Guochang Li   +6 more
doaj   +1 more source

Effect of Cellulose Particles on Breakdown Voltage in Wet FR3 Natural Ester

open access: yesIEEE Access, 2019
Due to the polar nature of natural ester, moisture content which may cause deterioration of electric strength is significantly higher in natural ester than that in mineral insulating oil.
Tao Zhao   +4 more
doaj   +1 more source

Numerical Prediction of DC Breakdown Characteristics in LDPE With Current Profile as Critical Index

open access: yesIEEE Access, 2020
Understanding the DC breakdown characteristics of polymeric insulators is essential for stable operation of high-capacity DC electrical equipment.
Minhee Kim, Su-Hun Kim, Se-Hee Lee
doaj   +1 more source

Accumulation Behaviors of Different Particles and Effects on the Breakdown Properties of Mineral Oil under DC Voltage

open access: yesEnergies, 2019
Particles in transformer oil are harmful to the operation of transformers, which can lead to the occurrence of partial discharge and even breakdown.
Min Dan   +5 more
doaj   +1 more source

Model to estimate the trapping parameters of cross-linked polyethylene cable peelings of different service years and their relationships with dc breakdown strengths

open access: yesHigh Voltage, 2016
In this study, an improved trapping/detrapping model was used to simulate the charge dynamics in cross-linked polyethylene peelings from different-year aged cables.
Ning Liu   +5 more
doaj   +1 more source

Mechanical and DC electrical properties of low crosslinking degree LLDPE for XLPE insulation

open access: yes电力工程技术, 2023
A way to improve high-temperature mechanical behavior and reduce conductivity of direct-current cable insulation material is introduced by using low-crosslinked linear low density polyethylene (LLDPE).
LI Yinge   +5 more
doaj   +1 more source

Influence of xylene on the dielectric response of an organoclay-containing nanocomposite

open access: yesIET Nanodielectrics, 2020
The dielectric effect, investigated using dielectric spectroscopy and DC dielectric breakdown strength measurements, of introducing xylene into a composite system containing polyethylene, a co-polymer of ethylene and vinyl acetate and an organoclay can ...
Allison V. Shaw   +3 more
doaj   +1 more source

Numerical Simulation on Charge Transport and DC Breakdown in Polyethylene-Based Micro-h-BN/Nano-SiO2 with Filler Orientation Dependent Trap Energy

open access: yesEnergies, 2021
In order to improve the thermal conductivity and the insulation properties of polyethylene (PE) used as cable insulation under DC stress, hexagonal boron nitride (h-BN) and inorganic particles have been considered as micro-filler and nano-filler ...
Xuri Xu   +5 more
doaj   +1 more source

Effect of Thickness on the Space Charge Behavior and DC Breakdown Strength of Cross-Linked Polyethylene Insulation [PDF]

open access: yesIEEE Access, 2020
In high voltage direct current (HVDC) cable systems, study of electric field distortion created by space charge accumulation is very important for examining insulation performance. Therefore, in this paper the influence of space charge on short-time breakdown characteristics of cross-linked polyethylene (XLPE) are studied.
Zhipeng Ma   +4 more
openaire   +2 more sources

Structure and DC breakdown properties of polypropylene/elastomer blends

open access: yes, 2023
Thermoplastic materials, such as polypropylene (PP), are highly favored for usage as high voltage cable insulation systems due to their high melting temperature and flexible mechanical and electrical characteristics. In this regard, PP has the capability
Lau, K. Y.   +5 more
core   +1 more source

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