Results 51 to 60 of about 2,602,019 (170)

Trap Modulated Charge Carrier Transport in Polyethylene/Graphene Nanocomposites

Scientific Reports, 2017
The role of trap characteristics in modulating charge transport properties is attracting much attentions in electrical and electronic engineering, which has an important effect on the electrical properties of dielectrics.
Zhonglei Li, Boxue Du, Chenlei Han, Hang Xu   +3 more
doaj   +1 more source

Polypropylene’s Crystallization Morphology During the Non-Isothermal Crystallization Process and Its Electrical Properties

IEEE Access
To understand the mechanism of the effect of the cooling rate of the non-isothermal crystallization process on the crystallization morphology of polypropylene (PP) insulation and the relationship between the crystallization morphology and DC breakdown ...
Wei Wang, Wanting Jiang, Lin Yan, Dongdong Yang, Fengjie Ma   +4 more
doaj   +1 more source

Experimental studies of influence of DC and AC electric fields on bridging in contaminated transformer oil

, 2015
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., Golosnoy, I.O., Chen, G., Wilson, G., Jarman, P.   +4 more
core   +1 more source

Effect of the cross-linking agent on the cross-linking degree and electrical properties of cross-linked polyethylene

Materials Research Express, 2023
To study the effect of a cross-linking agent on the cross-linking degree and electrical properties of cross-linked polyethylene, different mass fractions of cross-linked polyethylene and their electrical properties were investigated.
Liu Yujia, Long Yu, Wang Qingyui, Hao Chuncheng, Lei Qingquan, Guo Xiangjin   +5 more
doaj   +1 more source

Space charge and DC dielectric breakdown in polymeric insulation

, 2012
many years but the mechanisms that cause breakdown have not been fully understood. Charge injection always occurs at high electric fields and especially under dc conditions.
George Chen, Zhao, Junwei, Junwei Zhao, Chen, George   +3 more
core   +2 more sources

Hindered phenolic antioxidant grafting on tailoring the DC electrical characteristics of polypropylene cable insulation

High Voltage
The authors focus on the impact of melt‐free radical grafting with hindered phenolic antioxidants (AO3052) on the electrical properties of polypropylene (PP) for DC cable insulation.
Boxue Du, Guoning Sun, Heyu Wang, Zhonglei Li   +3 more
doaj   +1 more source

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, 2020
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Лусто И.И, Койпиш В.Г
core  

Comparative Study of Breakdown Voltage of Mineral, Synthetic and Natural Oils and Based Mineral Oil Mixtures under AC and DC Voltages

Energies, 2017
This paper deals with a comparative study of AC and DC breakdown voltages of based mineral oil mixtures with natural and synthetic esters mainly used in high voltage power transformers.
Abderrahmane Beroual, Usama Khaled, Phanuel Seraphine Mbolo Noah, Henry Sitorus   +3 more
doaj   +1 more source

DC Dielectric Breakdown Behavior of Thermally Sprayed Ceramic Coatings

, 2015
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, Lahti, Kari, Niittymäki, Minna, Metsäjoki, Jarkko   +3 more
core   +2 more sources

Dielectric characterisation of epoxy nanocomposite with barium titanate fillers

IET Nanodielectrics, 2020
High permittivity materials are currently in use for mitigation of electrical stress in high-voltage apparatus and energy storage systems. In this work, epoxy-based high permittivity nanocomposites with Barium titanate (BaTiO(3)) nanofillers are ...
Romana Zafar, Nandini Gupta
doaj   +1 more source