Effects of the Environmental Factors on Electrical Properties of High Voltage Cable Buffer Layer

2020 ◽  
Author(s):  
Z. J. Li ◽  
X. Li ◽  
S. C. Fang ◽  
X. G. Xi ◽  
J. Fang ◽  
...  
Keyword(s):  
Electrical Properties ◽  
Environmental Factors ◽  
Buffer Layer ◽  
High Voltage

Effects of connection conditions between insulation screen and Al sheath on the buffer layer failures of high-voltage XLPE cables

2021 ◽  
Vol 122 ◽  
pp. 105263
Author(s):  
Yun Chen ◽  
Baojun Hui ◽  
Yanting Cheng ◽  
Yanwen Chen ◽  
Yanpeng Hao ◽  
...  
Keyword(s):  
Buffer Layer ◽  
High Voltage

Effects of an ultrathin silicon oxynitride buffer layer on electrical properties of ferroelectric Bi4Ti3O12 thin films on p-Si(100) surfaces

2001 ◽  
Vol 79 (3) ◽  
pp. 403-405 ◽  
Author(s):  
E. Rokuta ◽  
Y. Hotta ◽  
T. Kubota ◽  
H. Tabata ◽  
H. Kobayashi ◽  
...  
Keyword(s):  
Thin Films ◽  
Electrical Properties ◽  
Buffer Layer ◽  
Silicon Oxynitride

Three-Dimensional Potential and Electric Field Distributions in HV Cable Insulation Containing Multiple Cavities

2013 ◽  
Vol 845 ◽  
pp. 372-377 ◽  
Author(s):  
Nabipour Afrouzi Hadi ◽  
Zulkurnain Abdul-Malek ◽  
Saeed Vahabi Mashak ◽  
A.R. Naderipour
Keyword(s):  
Electrical Properties ◽  
Electric Field ◽  
High Voltage ◽  
Three Dimensional ◽  
The Finite Element Method ◽  
Low Dielectric ◽  
Underground Cable ◽  
Insulation Failure ◽  
Field Distributions ◽  
Hv Cable

Cross-linked polyethylene is widely used as electrical insulation because of its excellent electrical properties such as low dielectric constant, low dielectric loss and also due to its excellent chemical resistance and mechanical flexibility. Nevertheless, the most important reason for failure of high voltage equipment is due to its insulation failure. The electrical properties of an insulator are affected by the presence of cavities within the insulating material, in particular with regard to the electric field and potential distributions. In this paper, the electric field and potential distributions in high voltage cables containing single and multiple cavities are studied. Three different insulating media, namely PE, XLPE, and PVC was modeled. COMSOL software which utilises the finite element method (FEM) was used to carry out the simulation. An 11kV underground cable was modeled in 3D for better observation and analyses of the generated voltage and field distributions. The results show that the electric field is affected by the presence of cavities in the insulation. Furthermore, the field strength and uniformity are also affected by whether cavities are radially or axially aligned, as well as the type of the insulating solid. The effect of insulator type due the presence of cavities was seen most prevalent in PVC followed by PE and then XLPE.

scholarly journals Research on latent defect detection technology of high voltage cable

2021 ◽  
Vol 2113 (1) ◽  
pp. 012051
Author(s):  
Sanwei Liu ◽  
Chao Qiu ◽  
Yi Xie ◽  
Jianjia Duan ◽  
Fuyong Huang ◽  
...  
Keyword(s):  
Buffer Layer ◽  
High Voltage ◽  
Power Cables ◽  
X Ray ◽  
Depth Processing ◽  
Modern Development ◽  
Detection And Identification ◽  
Detection Technology ◽  
Intelligent Detection ◽  
The Internet Of Things

Abstract As a component of the Internet of things, high-voltage cables are the power supply infrastructure for the modern development of cities. The operation experience shows that the high-voltage cable has been broken down many times, due to the defective operation. At present, due to the limitation of detection technology, the research on detection and identification of defects in high-voltage cables is progressing slowly. Therefore, a new DR technology based on X-ray digital imaging is proposed in this paper to realize real-time detection of defects in the semi-conductive buffer layer of high-voltage cables, and intelligent detection of DR images of high-voltage cables by using image depth processing technology to realize intelligent identification of defects in the buffer layer of power cables. The results show that using the new DR technique proposed in this paper, the accurate and intuitive DR image of high-voltage cable can be obtained quickly, and the intelligent identification of defects can be realized.

Enhancement of the Electrical Properties of GZO Thin Films on Polycarbonate Substrates by Using a TiO2 Buffer Layer

2007 ◽  
Vol 51 (5) ◽  
pp. 1732-1735 ◽  
Author(s):  
Yeon-Keon Moon ◽  
Se-Hyun Kim ◽  
Dae-Young Moon ◽  
Woong-Sun Kim ◽  
Jong-Wan Park
Keyword(s):  
Thin Films ◽  
Electrical Properties ◽  
Buffer Layer ◽  
Tio2 Buffer Layer
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