scholarly journals Pre-determination of partial discharge inception voltage in power cables using electrode gaps in air under AC voltage

2017 ◽  
Author(s):  
Faisal P. Mohamed ◽  
W. H. Siew ◽  
Bojie Sheng ◽  
Brian G. Stewart ◽  
Euan A. Morris
Keyword(s):  
Partial Discharge ◽  
Power Cables ◽  
Inception Voltage

Characteristics of Partial Discharge in Cross-Linked Polyethylene Insulation Cable under Damped AC Voltage

2014 ◽  
Vol 494-495 ◽  
pp. 1444-1447
Author(s):  
Wei Zhang ◽  
Zhi Wei Huang ◽  
Rong Xue ◽  
Long Zhang ◽  
Hong Jie Li ◽  
...  
Keyword(s):  
Condition Monitoring ◽  
Partial Discharge ◽  
Conductive Adhesive ◽  
Metal Particles ◽  
Adhesive Tape ◽  
Power Cables ◽  
Test Results ◽  
Inception Voltage ◽  
Insulation Condition ◽  
Xlpe Insulation

Partial discharge (PD) diagnosis techniques are widely used in the insulation condition monitoring for power cables. In this paper, the damped AC (DAC) voltage method was used to study the PD characteristics in the heat-shrinkable cable accessories. Four different cases of artificial defects in cross-linked polyethylene (XLPE) cables were investigated, and these defects include termination without stress tube, incorrect use of insulation tape as the semi-conductive adhesive tape in the middle joint, void and metal particles on the surface of XLPE insulation. Furthermore, the PD inception voltage and patterns obtained under the DAC voltage are compared with the AC test results.

Influence of Space Charge Accumulation by Pre-stress on Partial Discharge Inception Voltage

2020 ◽  
Vol 140 (5) ◽  
pp. 276-284
Author(s):  
Maimi Mima ◽  
Tokihiro Narita ◽  
Hiroaki Miyake ◽  
Yasuhiro Tanaka ◽  
Masahiro Kozako ◽  
...  
Keyword(s):  
Space Charge ◽  
Partial Discharge ◽  
Charge Accumulation ◽  
Inception Voltage

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.

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