Results 121 to 130 of about 2,880 (232)

Significant Suppression of High Electric Field Regions in XLPE via Voltage Stabilisers

High Voltage
Dielectric degradation typically originates from local defects. The resulting electric field concentration accelerates defect growth. Suppressing field distortion arising from such local weaknesses has long been a major challenge in electrical insulation.
Ke Li, Luming Zhou, Guimin Jiang, Yunxiao Zhang, Yuanxiang Zhou   +4 more
doaj   +1 more source

2-Vinylanthraquinone-grafted XLPE suppresses AC electrical treeing by deep-trap regulation

Polymer Testing
Electrical treeing is a primary degradation pathway in cross-linked polyethylene (XLPE) cable insulation, making enhancement of the tree-initiation voltage (TIV) critical for reliable high-voltage operation.
Ke Li, Lu-Ming Zhou, Yun-Xiao Zhang, Yuan-Xiang Zhou   +3 more
doaj   +1 more source

Shape-Memory Effect of 4D-Printed Gamma-Irradiated Low-Density Polyethylene

Crystals
Four-dimensional-printed smart materials have a wide range of applications in areas such as biomedicine, aerospace, and soft robotics. Among 3D printing technologies, fused deposition molding (FDM) is economical, simple, and apply to thermoplastics ...
Yunke Huang, Yongxiang Tao, Yan Wang
doaj   +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

Partial discharge behaviour of cross-linked polyethylene - natural rubber blends nanocomposites as electrical insulating material [PDF]

, 2015
Polymeric materials are widely used in power apparatus as electrical insulation, especially for high voltage cable insulation. However, partial discharge (PD) has always been a predecessor to major faults and problems in this field.
Wan Mohd. Zawawi, Wan Akmal ‘Izzati
core  

Electrical Treeing in Silicone Rubber

, 2011
Electrical treeing has been widely studied in a range of polymeric materials. In these investigations, the morphology and PD patterns associated with the growth of electrical trees in a model transparent silicone rubber were investigated using a new ...
Freebody, N A, Hosier, I L, Moss, G, Swingler, S G, Vaughan, A S   +4 more
core  

Pemilihan kerjaya di kalangan pelajar-pelajar pendidikan khas aliran teknik dan vokasional : satu tinjauan [PDF]

, 2003
Kajian ini bertujuan untuk mengenalpasti ciri-ciri pemilihan keijaya yang menjadi pilihan para pelajar pendidikan khas aliran Teknik dan Vokasional.
Mat Sapri, Zarina
core  

Space charge accumulation under the effects of temperature gradient on solid dielectric DC cable

, 2009
It is well known that existence and accumulation of space charge within the insulating material poses threat to the reliability in the operation of dc power cables. When the cables are loaded under high voltage direct current (HVDC), temperature gradient
Chen, George, Choo, Wilson, Swingler, Steve   +2 more
core  

Effects of heavy load temperature rise on the dynamic charge transport characteristics of XLPE/SiR heterogeneous insulation

High Voltage
The space charge accumulation in the heterogeneous insulation composed of cross‐linked polyethylene (XLPE) cable and silicone rubber (SiR) accessory poses a serious threat to the safe operation of the high voltage direct current (HVDC) cable.
Yani Wang, Ruobing Xu, Pinshun Ren, Yalin Wang, Haobin Chen, Wenjun Wu, Xingwu Yang   +6 more
doaj   +1 more source

Influence of Shear-Induced Pre-Crosslinking on the Mechanical and Dielectric Properties of Crosslinked Polyethylene Cable Insulation. [PDF]

Materials (Basel)
Jiang M, Wang X, Zhang R, Tian Z.
europepmc   +1 more source