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.

Study on Characteristics of Partial Discharge in XLPE Cable under Damped AC Voltage at Different Frequencies

2014 ◽  
Vol 1049-1050 ◽  
pp. 750-753
Author(s):  
Pei Xiang Yu ◽  
Long Zhang ◽  
Rui Peng Li ◽  
Yu Qi Yang ◽  
Hong Jie Li
Keyword(s):  
Partial Discharge ◽  
Conductive Adhesive ◽  
Metal Particles ◽  
Adhesive Tape ◽  
Power Cable ◽  
Practical Application ◽  
Xlpe Cable ◽  
Frequency Changes ◽  
Inception Voltage ◽  
Xlpe Insulation

Damped AC (DAC) voltage method is widely used in partial discharge (PD) detection of power cable. The frequency of DAC voltage is changed due to different length of testing cable. To study the PD characteristics in the heat-shrinkable cable accessories under DAC voltage at different frequencies, four different cases of artificial defects in cross-linked polyethylene (XLPE) cables were investigated. 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, some characteristic PD parameters including the partial discharge inception voltage (PDIV), the partial discharge extinction voltage (PDEV), discharge magnitude, discharge times and so on were compared and analyzed. The results show that PD characteristics are different as the DAC frequency changes, which provides guidance for the practical application.

Online Partial Discharge Insulation Condition Monitoring of Complete High-Voltage Networks

2019 ◽  
Vol 55 (1) ◽  
pp. 1021-1029 ◽  
Author(s):  
Lee Andrew Renforth ◽  
Riccardo Giussani ◽  
Michael T. Mendiola ◽  
Lewis Dodd
Keyword(s):  
Condition Monitoring ◽  
High Voltage ◽  
Partial Discharge ◽  
Insulation Condition

Dedicated On-Site Condition Monitoring of High Voltage Power Cables up to 150kV

2008 ◽  
Vol 9 (3) ◽  
Author(s):  
Edward Gulski ◽  
Paul P Seitz ◽  
Ben Quak ◽  
Frank Petzold ◽  
Frank de Vries
Keyword(s):  
Signal Processing ◽  
Condition Monitoring ◽  
High Voltage ◽  
Partial Discharge ◽  
Dielectric Losses ◽  
Power Cables ◽  
Site Condition ◽  
Cable System ◽  
Production Methods ◽  
Non Destructive

For advanced, non-destructive on-site condition monitoring of HV power cables up to 150kV by partial discharge detection and dielectric losses measurement it is necessary to energize the disconnected cable system. One of the methods available for this purpose is based on applying damped AC voltages up to 150kV. In this paper, the use of modern technological solutions in power electronics and signal processing as well as in technical design and production methods will be discussed on the basis of the ultra light system (300kg) which is able to test cables up to 20km lengths.

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