Results 111 to 120 of about 11,897 (208)

Significantly enhanced DC breakdown strength and high‐temperature resistivity of cross‐linked polyethylene through alloying polystyrene strategy

High Voltage
Developing a stable insulation material stands as a crucial challenge for high‐voltage direct current (HVDC) cable insulation. This work proposes an alloying strategy to significantly enhance the breakdown strength and high‐temperature resistivity of ...
Muneeb Ahmed, Lisheng Zhong, Jinghui Gao, Fei Li, Nuo Xu, Wenpeng Li, Liang Cao   +6 more
doaj   +1 more source

Breakdown Performance Evaluation and Lifetime Prediction of XLPE Insulation in HVAC Cables

Energies
This article presents the recent developments in the field of evaluation of the breakdown performance and remaining lifetime of XLPE insulation and analyzes the accuracy of existing lifetime prediction models through experiments.
Zhonglei Li, Yuming Dong, You Wu, Zhengzheng Meng, Pengxian Song, Mingzheng Zhu, Xu Li, Boxue Du   +7 more
doaj   +1 more source

Kesan penggunaan peta konsep ke atas pencapaian mata pelajaran rekabentuk sistem dalam kalangan pelajar program ijazah sarjana muda teknologi maklumat dan multimedia [PDF]

, 2008
Peta konsep adalah satu kaedah persembahan yang menerangkan sesuatu konsep dalam bentuk grafik. Penggunaannya dalam proses pengajaran dan pembelajaran mampu untuk meningkatkan pencapaian pelajar dan mengurangkan pemasalahan di dalam pembelajaran.
Zainal Abidin, Norazlin
core  

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.
Chen, G, Disaado, L A, Fothergill, J C, Fu, M   +3 more
core  

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

Condition Monitoring of Power Cables

, 2007
A National Grid funded research project at Southampton has investigated possible methodologies for data acquisition, transmission and processing that will facilitate on-line continuous monitoring of partial discharges in high voltage polymeric cable ...
Hao, L, Lewin, P L, Swaffield, D J, Swingler, S G   +3 more
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Modeling and analysis of the remaining useful life of mv xlpe cable: case study of Oman Oil and Gas power grid [PDF]

, 2018
Alkali, Babakalli, Farrag, M E A, Qatan, Mohamed, Zhou, Chengke   +3 more
core   +1 more source

Improved direct current electrical properties of XLPE modified by graftable antioxidant and crosslinking coagent at a wide temperature range

High Voltage
To enhance the DC electrical performance of cross‐linked polyethylene (XLPE), the graftable antioxidant methacrylic acid 2‐hydroxy‐3‐(4‐anilinoanilino) propyl ester (GA), which contains carbonyl and amino groups, and the crosslinking coagent ...
Xu Yang, Hong Zhao, Chengcheng Zhang, Chunyang Li, Xindong Zhao, Jiaming Yang, Xuan Wang   +6 more
doaj   +1 more source

Research on the Thermal Aging Characteristics of Crosslinked Polyethylene Cables Based on Polarization and Depolarization Current Measurement

Energies
Although XLPE cables are widely used in power transmission and distribution systems, their insulating properties are susceptible to degradation due to thermal aging. In order to clarify the influence law of the thermal aging process on the structural and
Yamei Li, Zhaowei Peng, Dangguo Xu, Shiyang Huang, Yanfeng Gao, Yuan Li   +5 more
doaj   +1 more source

On-line monitoring of relative dielectric losses in cross-bonded cables using sheath currents [PDF]

, 2017
Bao, Yuchuan, Hepburn, D.M., Wenjun, Zhou, Yang, Yang, Zhou, Chengke   +4 more
core   +1 more source