Two years of experience with a mobile resonant test system for testing of installed medium- and high voltage power cables

1999 ◽  
Author(s):  
P. Schikarski
Keyword(s):  
High Voltage ◽  
Test System ◽  
Power Cables ◽  
Years Of Experience

Research on the Break Impact Test of Ultra High Voltage Composite Strain Insulator String

2013 ◽  
Vol 706-708 ◽  
pp. 1689-1692
Author(s):  
Cao Lan Liu ◽  
Bin Liu ◽  
Sheng Chun Liu ◽  
Zhen Liu ◽  
Kuan Jun Zhu
Keyword(s):  
Mechanical Properties ◽  
High Voltage ◽  
Impact Test ◽  
Test System ◽  
Dynamic Impact ◽  
Composite Insulator ◽  
Composite Strain ◽  
High Voltage Engineering ◽  
Dynamic Impact Factor ◽  
Ultra High Voltage

To guarantee the security of composite insulators as tension strings applied to ultra-high voltage engineering, it is necessary to study the mechanical properties of composite insulator regarding break impact. The test system was designed and the implementation plan was developed. Test was done to two insulator strings broken and the dynamic impact factor under different broken conditions at different tension was obtained accordingly, which provides reference and evidence for further study on mechanical properties of composite insulator and development of applicable design specifications.

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.

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