Results 31 to 40 of about 402,609 (305)

Influence of water ageing on variation in space charge and thermo‐mechanical properties of epoxy micro‐nano composites

open access: yesIET Science, Measurement & Technology, 2021
Water ageing was carried out with epoxy micro–nano composite specimen. Silica micro particles and ion trapping nano particles were used as filler material in the composite specimens.
Myneni Sukesh Babu   +3 more
doaj   +1 more source

Dielectric Performance of Silica-Filled Nanocomposites Based on Miscible (PP/PP-HI) and Immiscible (PP/EOC) Polymer Blends

open access: yesIEEE Access, 2021
This study compares different polymer-nanofiller blends concerning their suitability for application as insulating thermoplastic composites for High Voltage Direct Current (HVDC) cable application.
Xiaozhen He   +13 more
doaj   +1 more source

Effect of graphene modified semi‐conductive shielding layer on space charge accumulation in insulation layer for high‐voltage direct current cable

open access: yesHigh Voltage, 2022
Space charge accumulation in the insulation layer of high‐voltage direct current (HVDC) cable is one of the key factors restricting the development of HVDC cable.
Guochang Li   +8 more
doaj   +1 more source

Space Charge Accumulation at Material Interfaces in HVDC Cable Insulation Part I—Experimental Study and Charge Injection Hypothesis

open access: yesEnergies, 2020
On-site installation of accessories on extruded polymeric high voltage cables in a common practice. The procedure requires the shaping of the physical interface between the cable insulation surface and the pre-molded accessory body.
Espen Doedens   +3 more
doaj   +1 more source

Space Charge Accumulation Phenomena in PI under Various Practicable Environment

open access: yes, 2021
Polyimide is widely used insulation materials, such as power equipment, motor windings, multi layer insulated, and so on. As the operation environment is high temperature, high humidity, radiation, the dielectric insulation characteristic is decreased compared with pristine one.
Hiroaki, Miyake,, Yasuhiro, Tanaka,
openaire   +3 more sources

Effect of Pre-Qualification Test on Space Charge Accumulation Phenomenon

open access: yes2023 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP), 2023
This paper is focused on the measurement of space charge in flat specimens deriving from a cable subjected to the Pre-Qualification (PQ) test. In particular, before starting the PQ test and after finishing them, the flat specimens have been taken from the cable.
A. Imburgia   +8 more
openaire   +2 more sources

Static conductivity of charged domain wall in uniaxial ferroelectric-semiconductors [PDF]

open access: yes, 2011
Using Landau-Ginzburg-Devonshire theory we calculated numerically the static conductivity of both inclined and counter domain walls in the uniaxial ferroelectrics-semiconductors of n-type.
A. A. Grekov   +16 more
core   +1 more source

Transport Characteristics of Interfacial Charge in SiC Semiconductor–Epoxy Resin Packaging Materials

open access: yesFrontiers in Chemistry, 2022
The silicon carbide (SiC) wide bandgap (WBG) semiconductor power device has been widely applied for its excellent properties. However, the charge accumulated in the interface of SiC semiconductor-related insulation packaging may lead to serious material ...
Chi Chen   +6 more
doaj   +1 more source

Polyethylene/Dibenzylidene Sorbitol: effect of composition on space charge of polymeric insulation systems

open access: yes, 2008
This paper examines the effects of 1,3:2,4- dibenzylidene sorbitol (DBS), a low-molecular organic molecule, on the space charge distribution in polyethylene.
Chen, George   +2 more
core   +1 more source

Space charge behavior in thick oil-impregnated pressboard under HVDC stresses [PDF]

open access: yes, 2015
The space charge accumulation can affect the dielectric performance of oilimpregnated pressboard in convertor transformers. In this paper, the space charge behaviour in 1mm thick impregnated pressboards is investigated by the means of pulsed ...
Chen, George   +4 more
core   +1 more source

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