scholarly journals Analysis of low-frequency dielectric loss of XLPE cable insulation based on extended Debye model

AIP Advances ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 085103
Author(s):  
Xiang Cheng ◽  
Gang Ye ◽  
Haofei Sun ◽  
Tao Li ◽  
Changwei Sun
Keyword(s):  
Dielectric Loss ◽  
Low Frequency ◽  
Debye Model ◽  
Cable Insulation ◽  
Xlpe Cable

Reducing the low-frequency dielectric loss of CaCu3Ti4O12 ceramics by adding (In0.5Nb0.5)0.05Ti0.95O2

2021 ◽  
Vol 32 (7) ◽  
pp. 9324-9331
Author(s):  
Wentao Hao ◽  
Bo Yu ◽  
Panpan Xu ◽  
Li Sun ◽  
Ensi Cao ◽  
...  
Keyword(s):  
Dielectric Loss ◽  
Low Frequency

Ageing Assessment of XLPE Cable Insulation by Residual Antioxidant Content

2020 ◽  
Vol 27 (6) ◽  
pp. 1795-1802
Author(s):  
Yuanyuan Zhang ◽  
Shengtao Li ◽  
Jian Gao ◽  
Shihang Wang ◽  
Kangning Wu ◽  
...  
Keyword(s):  
Cable Insulation ◽  
Xlpe Cable ◽  
Antioxidant Content

Effect of Electrical Aging on the Trap Parameter of HVAC XLPE Cable Insulation

2014 ◽  
Vol 672-674 ◽  
pp. 769-772
Author(s):  
Wei Wei Li ◽  
Qiang Shi ◽  
Chi Wu
Keyword(s):  
Crystallization Process ◽  
Melt Crystallization ◽  
Depolarization Current ◽  
Cable Insulation ◽  
Trap Charge ◽  
Xlpe Cable ◽  
Trap Parameter ◽  
Start Up ◽  
Electrical Aging ◽  
Two Peaks

The effect of electrical aging on the trap parameter of HVAC XLPE cable insulation was investigated in this work. Thermally Stimulated Current (TSC) was used to measure depolarization current. The variation of trap parameter was calculated by means of start-up method based on the Gaussian fitting curve of TSC data. It was found that, the activation energy and the amount of trap charge obtained from TSC peak at 243K and 348K were increased after electrical aging, which may be benefit to characterize the degree of aging. The amount of trap charge in the two peaks increases as the increase of oxide dipole after electrical aging. And charge trapped described by the TSC peak at melting temperature increased after aging. It is considered that the increase of charge in the TSC peak can be attributed to the release of trap charge in the melt crystallization process, which corresponds to the α relaxation process in XLPE insulation.

Development of a Portable XLPE Cable Insulation Detection Device

2014 ◽  
Vol 960-961 ◽  
pp. 881-884
Author(s):  
Xiao Guang Xi ◽  
Yu Yan Man ◽  
Chi Zhang ◽  
Ming Lei Wu ◽  
Yan Wei Dong ◽  
...  
Keyword(s):  
Acoustic Emission ◽  
Electromagnetic Wave ◽  
Electromagnetic Coupling ◽  
Partial Discharge ◽  
Power Cables ◽  
Cable Insulation ◽  
Xlpe Cable ◽  
Insulation Status

In this article, a portable XLPE cable insulation detection device is introduced. Such a device utilizes electromagnetic coupling, UHF electromagnetic wave and acoustic emission to detect partial discharge signals in power cables. By analyzing the partial discharge signals and cable temperatures, the insulation status of XLPE power cables is judged.

Influence of thermal treatments on the low frequency conductivity and microwave dielectric loss of CaTiO3 ceramics

2011 ◽  
Vol 176 (5) ◽  
pp. 401-405 ◽  
Author(s):  
Peng Hu ◽  
Huan Jiao ◽  
Chun-Hai Wang ◽  
Xiao-Ming Wang ◽  
Shi Ye ◽  
...  
Keyword(s):  
Dielectric Loss ◽  
Low Frequency ◽  
Thermal Treatments ◽  
Microwave Dielectric
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