Results 61 to 70 of about 139,328 (210)

Effect of thermal ageing on ultra-low frequency dielectric properties and volt-ampere characteristics of cable insulation

电力工程技术
To enhance the application of ultra-low frequency dielectric loss testing technology in evaluating cable insulation conditions and to improve the testing efficiency of ultra-low frequency dielectric spectroscopy, the dielectric properties of cross-linked
Haiyu SUN, Ziyu JIANG, Guozhi GU, Hengyu LI, Zhijia GUO, Xuetong ZHAO   +5 more
doaj   +1 more source

The impact of XLPE surface defects on electric field and breakdown voltage

Frontiers in Energy Research
During the construction of cable joints, three common defects may occur on the XLPE surface: scratches, moisture exposure, and adhered contaminated particles.
Guanghua He, Wei Zhang, Ke Sun, Jinlong Qi, Jiahao Zhao, Jiayi Han, Xiaoshuai Zhu   +6 more
doaj   +1 more source

The conduction characteristics of electrical trees in XLPE cable insulation [PDF]

Journal of Applied Polymer Science, 2009
AbstractDepending on the morphology of the material and applied voltage frequency, three kinds of electrical trees can exist in cross‐linked polyethylene (XLPE) cable insulation, which are conducting, non‐conducting, and mixed trees with different growth mechanisms.
Xie, Ansheng, Zheng, Xiaoquan, Li, Shengtao, Chen, George   +3 more
openaire   +1 more source

The Influence of Material Modification and Residues on Space Charge Accumulation in XLPE for DC Power Cable Application

, 2007
The effects of material modification and cross-linking by-products (residues) quantity on space charge accumulation and decay in XLPE have been investigated using the pulsed electro-acoustic technique.
Fothergill, J C, Fu, M, Chen, G, Disaado, L A   +3 more
core   +1 more source

Nondestructive Detection of Thermal Aging in XLPE Based on Terahertz Spectroscopy

Photonics
XLPE power cables have become the core insulation material in the power cable industry and are widely used in high-voltage and extra-high-voltage cable systems due to their advantages of large transmission capacity, excellent dielectric properties, and ...
Junping Cao, Wenhui Yan, Yiming Zheng, Jiayu Liu, Zhiyi Gao, Baiqiang Sun, Yuntu Jiang, Yu Ma, Zhenwei Zhang   +8 more
doaj   +1 more source

Dielectric Loss Suppression of Polyethylene Cable Insulation by Motion Restriction of Ultralow‐Content Grafted Maleic Anhydride

High Voltage, Volume 11, Issue 2, Page 534-543, April 2026.
ABSTRACT Maleic anhydride (MAH) grafting modification is an effective approach to enhance the insulating performance of polyethylene (PE) cable insulations. However, the high polarity of MAH often causes considerable dielectric loss, making it unsuitable for AC systems.
Shixun Hu, Cheng Tong, Xiyu Zhang, Changhong Li, Wangjie Zeng, Shangshi Huang, Chi Yao, Xiongjie Yang, Si Qin, Yiyi Zhang, Yuntian Ge, Qi Li, Jinliang He   +12 more
wiley   +1 more source

Understanding the Mechanism of Junction Effect of Homo‐Bilayer XLPE for HVDC Cable Factory Joints

High Voltage
In high‐voltage direct current cable systems, the factory joint of cross‐linked polyethylene (XLPE)‐insulated cables presents significant electrical breakdown risk. The charge accumulation mechanism at the XLPE–XLPE interface involves the accumulation of
Xiaofan Song, Wei Zhao, Jinghui Gao, Li Yin, Xinsheng Lu, Yi Zhang, Lisheng Zhong   +6 more
doaj   +1 more source

Effect of Interface Defects on the Electric–Thermal–Stress Coupling Field Distribution of Cable Accessory Insulation

Energies
The combined insulation interface of a high-voltage cable and accessories is the weakest part of a cable system. In this paper, the parameters of the dielectric constant, thermal conductivity, and elastic modulus of cross-linked polyethylene (XLPE) and ...
Xu Lu, Ran Hu, Kongying Guo, Rui Lan, Jie Tian, Yanhui Wei, Guochang Li   +6 more
doaj   +1 more source

Simulation and partial discharge detection for typical defects of 10 kV cable the joint

The Journal of Engineering, 2019
In order to explore the partial discharge characteristics of 10 kV XLPE insulated cable (hereinafter referred to as ‘XLPE cable’), first six typical defects are made on the main insulation according to the requirements of the installation process and the
Yunfeng Xia, Xinming Song, Jianzong He, Zhidong Jia, Xilin Wang   +4 more
doaj   +1 more source

Combustion Performance of Silicone Rubber Polymer Insulation Material Under Damp‐Heat Ageing Conditions: Molecular Insights Into the Effects of Structural Changes on Macroscopic Properties

High Voltage, Volume 11, Issue 2, Page 589-599, April 2026.
ABSTRACT Silicone rubber (SR), an organic silicon polymer material, is known for its excellent heat resistance and mechanical properties. It is widely used in composite insulators and cable accessory materials. However, the ageing caused by humidity and heat significantly impacts its performance, an issue that cannot be ignored. This paper investigates
Wenyu Ye, Xinhan Qiao, Wentian Zeng, Le Yu, Yinfu Chen, Ke Xu, Jianwen Zhang   +6 more
wiley   +1 more source