Results 21 to 30 of about 5,972,851 (291)

Space Charge Accumulation Characteristics in HVDC Cable under Temperature Gradient

Energies, 2020
One of the main issues that affect the development of high-voltage direct-current (HVDC) cable insulation is the accumulation of space charge. The load operation of an HVDC cable leads to the formation of a radially distributed temperature gradient (TG ...
Yifan Zhou, Wei Wang, Tailong Guo
doaj   +1 more source

Space charge and trap energy level characteristics of SiC wide bandgap semiconductor

AIP Advances, 2022
Charge carrier transport and accumulation in silicon carbide (SiC) wide bandgap semiconductors caused by the defect and impurity are likely to lead to serious performance degradation and failure of the semiconductor materials, and the high temperature ...
Chi Chen, Xia Wang, Kai Wu, Chuanhui Cheng, Chuang Wang, Yuwei Fu, Zaiqin Zhang   +6 more
doaj   +1 more source

Research progress on space charge characteristics in polymeric insulation [PDF]

Journal of Advanced Dielectrics, 2016
Due to their excellent electrical insulation properties and processability, polymer materials are used in many electrical products. It is widely believed that space charge plays an important role for the electric field distribution, conduction, ageing ...
Yibo Zhang, Thomas Christen, Xing Meng, Jiansheng Chen, Jens Rocks   +4 more
doaj   +1 more source

Influence of Thermal Aging on Space Charge Accumulation and Dissipation of Cross-Linked Polyethylene With Different Cross-Linking Agent Contents

IEEE Access, 2020
This article presents the influence of thermal aging on space charge accumulation and dissipation of cross-linked polyethylene (XLPE) with different cross-linking agent contents. In this article, dicumyl peroxide (DCP) and low-density polyethylene (LDPE)
Shuchao Wang, Quan Zhou, Jian Li, Ruijin Liao, Nengcheng Wu, Yong Li, Minghao Chen   +6 more
doaj   +1 more source

Effect of Graphene Coating on Space Charge Characteristic of XLPE and Semiconductive Layer at Different Temperatures

IEEE Access, 2019
DC cross-linked polyethylene (XLPE) power cables are being used recently for HV/EHV applications, the reliability of which is claimed to be significantly affected by space charge accumulation in the insulating material.
Zhipeng Lei, Davide Fabiani, Chuanyang Li, Simone Vincenzo Suraci, Giacomo Selleri, Tao Han, Marco Speranza, Filippo Grolli, Fabrizio Palmieri   +8 more
doaj   +1 more source

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

IET 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, Ramachandran Velmurugan, Ramanujam Sarathi, Takahiro Imai   +3 more
doaj   +1 more source

Modified Charge Transport Model Under High-Frequency Unipolar Square Wave Voltage

Frontiers in Materials, 2022
As the main insulation material of the power electronic transformer (PET), polyimide (PI) is easy to accumulate space charge under the continuous high-frequency pulse voltage, which will threaten the operation of PET and cause electric field distortion ...
Jianxiang Xie, Shen Yan, Mingchen Shi, Yiyi Zhang, Jiefeng Liu   +4 more
doaj   +1 more source

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

IEEE 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, Paolo Seri, Ilkka Rytoluoto, Rafal Anyszka, Amirhossein Mahtabani, Hadi Naderiallaf, Minna Niittymaki, Eetta Saarimaki, Christelle Mazel, Gabriele Perego, Kari Lahti, Mika Paajanen, Wilma Dierkes, Anke Blume   +13 more
doaj   +1 more source

SNS Accumulator Ring design and space charge considerations [PDF]

AIP Conference Proceedings, 1998
The goal of the proposed Spallation Neutron Source (SNS) is to provide a short pulse proton beam of about 0.5 {micro}s with average beam power of 1 MW. To achieve such purpose, a proton storage ring operated at 60 Hz with 1 {times} 10{sup 14} protons per pulse at 1 GeV is required.
openaire   +1 more source

Effect of polyethylene interface on space charge formation [PDF]

, 2004
This paper reports the results of an investigation into the space charge formation and decay at different material interfaces. In particular, the influence of the interface between electrode and polymer or polymer and polymer on the space charge dynamics
L. Zhong, Tanaka, Y, Takada, T, Zhong, L, T. Takada, Y. Tanaka, G. Chen, Chen, G   +7 more
core   +2 more sources