Results 41 to 50 of about 127,048 (210)

Failure Analysis of Field-Aged XLPE Cable Insulation: Experimental Characterization and Machine Learning-Based Condition Classification

IEEE Access
The degradation of cross-linked polyethylene (XLPE) insulation adversely affects the reliability and service life of power cables, potentially leading to insulation failure and power system instability.
Waleed M. Hamanah, Ali Ahmed Ali Salem, Salem Mgammal Al-Ameri   +2 more
doaj   +1 more source

Dynamic Covalent Chemistry Enables Self‐Healing and Compatibilization in Polypropylene Composites

ENERGY &ENVIRONMENTAL MATERIALS, Volume 9, Issue 5, September 2026.
A high‐performance polypropylene insulation material is created through dynamic covalent crosslinking. It achieves exceptional dielectric properties, autonomous self‐healing, and easy recycling, offering a sustainable solution for future HVDC transmission systems.
Hongzhe Zhang, Wenye Zhang, Wenjie Huang, Jun‐Wei Zha   +3 more
wiley   +1 more source

Acyclic Hydrocarbon α,ω‐Dienes: From Biomass and Plastic Upcycling to Carbocycles, Precision Polymers, and Cross‐Linked Elastomers

ChemSusChem, Volume 19, Issue 14, 29 July 2026.
Hydrocarbon α,ω‐dienes are mainly produced from steam‐cracking derivatives, but high costs, complexity, and environmental impact limit their use. This review highlights sustainable paths from biomass and plastic upcycling, and surveys catalytic transformations into carbocycles and specialty polymers, emphasizing their role as modular building blocks ...
Rosa Villaccio, Giuseppe Leone
wiley   +1 more source

Ultrasonic characteristics of compound interface defects of high voltage cable accessory and its correlation with insulation properties

Polymer Testing
Insulation defects in high-voltage cable accessories easily induce partial discharge and even severe faults under sustained electrical stress, threatening cable line safe operation directly.
Yanhui Wei, Zeyu Wang, Renyou Li, Meng Wang, Defeng Zang, Guochang Li   +5 more
doaj   +1 more source

Interface Damages of Electrical Insulation in Factory Joints of High Voltage Submarine Cables

Energies, 2020
As a key accessory of high-voltage (HV) insulated submarine cable, the factory joints of the cross-linked polyethylene (XLPE) represent an unpredictable uncertainty in cable-connecting fabrications by means of the extruded molding joint (EMJ) technique ...
Zhen-Peng Zhang, Chang-Ji Zheng, Mei Zheng, Hong Zhao, Jian-Kang Zhao, Wei-Feng Sun, Jun-Qi Chen   +6 more
doaj   +1 more source

Low‐Frequency Oscillation Suppression of FDR Time‐Domain Diagnostic Waveforms for Cable Defects Based on Splicing Technology

High Voltage, Volume 11, Issue 3, Page 681-691, June 2026.
ABSTRACT A time domain pulse (TDP) based on the frequency domain reflectometry (FDR) method can be used to diagnose the insulation state of cable defects. However, because of the limitations of the FDR test instrument, the lack of a reflection coefficient spectrum (RCS) in the low‐frequency band (LFB) can result in low frequency oscillation in the time
Jingtao Huang, Kai Zhou, Yefei Xu, Zhirong Tang, Zuoxin Tang, Zhongying Liang, Xianjie Rao   +6 more
wiley   +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

Electrical resistivity‐temperature characteristics enhancement of insulating cross‐linked polyethylene composites by incorporating positive temperature coefficient particles with different Curie temperatures

High Voltage, 2023
Incorporating positive temperature coefficient (PTC) ceramic particles into polymers provides a prospective alternative solution for suppressing severe electric field distortions caused by negative temperature coefficient (NTC) of electrical resistivity ...
Guimin Jiang, Yuanxiang Zhou, Chenyuan Teng, Yunxiao Zhang, Xin Huang, Lei Xue, Luming Zhou   +6 more
doaj   +1 more source

Melt Grafting of Geometry‐Tailored Voltage Stabilizers for High‐Performance Polypropylene Insulation

Advanced Functional Materials, Volume 36, Issue 30, 13 April 2026.
A scalable one‐step melt grafting strategy is developed to enhance the dielectric properties of isotactic polypropylene by covalently incorporating thermally stable aromatic voltage stabilizers. This solvent‐free approach improves volume resistivity and DC breakdown strength through deep trap formation and charge localization, offering a sustainable ...
Nazirul Mubin bin Normansah, Taehoon Kwon, Hana Kim, Shin‐Ki Hong, Seung Won Lee, Se Hee Lee, Ik‐Su Kwon, Masahiro Kozako, Minhee Kim, Seunggun Yu   +9 more
wiley   +1 more source

Influence of non-sinusoidal voltages on electromechanical stresses in cross-linked polyethylene insulation with micro-defects of power electrical cables

Electrical engineering & Electromechanics
Introduction. Power cables with cross-linked polyethylene (XLPE) insulation have significant advantages over traditional oil-filled ones, which have led to their widespread use in high-power electrical networks of all developed countries.
A. A. Shcherba, O. D. Podoltsev, M. A. Shcherba, T. Yu. Antonets, R. V. Belyanin   +4 more
doaj   +1 more source