Results 11 to 20 of about 148,911 (262)

Effects of volume and surface conductivity on the surface charge and electric field characteristics of the tri‐post insulator in SF6‐filled ± 500 kV DC‐GIL

IET Generation, Transmission & Distribution, 2023
Herein, the surface charge characteristics of a tri‐post insulator in a ± 500 kV direct current gas‐insulated transmission lines (DC‐GIL) filled with SF6 are thoroughly studied.
Xiaolong Li, Guangkuo Zhang, Chen Cao, Yan Shi, Jie Li, Wenzhi Chang   +5 more
doaj   +1 more source

Surface charge accumulation of particles containing radionuclides in open air [PDF]

Journal of Environmental Radioactivity, 2015
Radioactivity can induce charge accumulation on radioactive particles. However, electrostatic interactions caused by radioactivity are typically neglected in transport modeling of radioactive plumes because it is assumed that ionizing radiation leads to charge neutralization.
Kim, Yong-ha, Yiacoumi, Sotira, Tsouris, Costas   +2 more
openaire   +2 more sources

Charge Accumulation Characteristics of Nonlinear Conductive SIR Composites under Polarity Reversal Voltage

Zhongguo dianli, 2020
The HVDC cable accessory is the weak point of the cable system. In order to study the effect of the nonlinear conductivity on the charge accumulation property of SiR cable accessory insulation under polarity reversal voltage, this paper prepared a SiR ...
Zhuoran YANG, Boxue DU, Zhonglei LI, Chong HAN, Cheng ZHANG   +4 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

High 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, Xuejing Li, Fan Zhang, Xiaojian Liang, Mingyue Liu, Yanhui Wei, Shengtao Li, Chuncheng Hao, Qingquan Lei   +8 more
doaj   +1 more source

Review of Streamer Dynamics and Surface Charge Accumulation on Ice Surfaces

Electrical and Electronic Engineering, 2013
This paper rev iews the main contributions of the CIGELE research team to the dynamics of streamer d ischarges along ice surfaces. These investigations were main ly performed under lightning impulse voltage, in at mospheric air. High-speed streak photography techniques were used to observe the streamers propagating between a rod-plane configuration ...
Farzaneh, Masoud, Fofana, Issouf
openaire   +3 more sources

Charge dynamics in spacecraft polymers: Trap-modulated mechanisms from bulk accumulation to surface secondary electron emission [PDF]

AIP Advances
The spacecraft operate under complex space effects, with the interaction between charged particles and dielectric being the primary cause of charging phenomena and subsequent discharge events.
Wen-Tong An, Bai-Peng Song, Fang-Zheng Zou, Guang-Yu Sun, Yue-Tong Liu, Hua-Peng Li, Jia-Qi Deng, Xiao-Gang Qin, Guan-Jun Zhang   +8 more
doaj   +1 more source

Charge accumulation and dissipation characteristics of rGO / CNTs / EP composite coating

Journal of Aeronautical Materials, 2022
The process of charge accumulation and dissipation on the surface of rGO / CNTs / EP composite coating was analyzed theoretically, and the fitting analysis was carried out according to the experimental data.
ZHAO Xin, XING Yilong, LI Meng, HUANG Chengchao, ZHAO Haodong, YANG Huarong   +5 more
doaj   +1 more source

FEM Simulation of Charge Accumulation Behaviours on Polyimide Surface in 10 kV Negative High-Voltage Corona Polarization Process

IEEE Access, 2020
The study investigates behaviors of charge accumulation on an insulated surface from micro perspective via the numerical method. A coupling bridge between the micro-ion reaction system and the macroscopic multi-physical field was constructed by means of ...
Tao Feng, Wei He, Jin Gang Wang
doaj   +1 more source

The Simulation of Surface Charge Accumulation on PMMA with Different Surface Roughness in Vacuum

Energy and Power Engineering, 2017
The surface insulation properties of insulating material under DC voltage are closely related to the characteristics of surface charge accumulation, and the surface roughness of these materials has a direct impact on the surface charge distribution in vacuum. Therefore, it is significant to study their connection.
Jiyuan Yan, Jie Ren, Qing Xie, Haofan Lin, Zhiliang Hu, Huijuan Ran, Weitao Hu, Si Li   +7 more
openaire   +1 more source

Correlation of traps inside XLPE and polypropylene with space charge dynamics under polarity reversal condition

IET Science, Measurement & Technology, 2021
Polypropylene (PP) is being considered as a suitable alternative to the cross‐linked polyethylene (XLPE) insulation as the latter is prone to the space charge accumulation when subjected to the voltage polarity reversals in line‐commutated converter high
Ashish Paramane, Xiangrong Chen, Chao Dai, Yasuhiro Tanaka   +3 more
doaj   +1 more source