N. Ruangkajonmathee and R. Thiamsri and B. Marungsri
Space Charge Distribution in 22 kV XLPE Insulated Cable by Using Pulse Electroacoustic Measurement Technique
1494 - 1497
2012
6
12
International Journal of Electrical and Computer Engineering
https://publications.waset.org/pdf/15837
https://publications.waset.org/vol/72
World Academy of Science, Engineering and Technology
This paper presents the experimental results on space charge distribution in crosslinked polyethylene (XLPE) insulating material for 22 kV power distribution system cable by using pulse electroacoustic measurement technique (PEA). Numbers of XLPE insulating material ribbon having thickness 60 μm taken from unused 22 kV high voltage cable were used as specimen in this study. DC electric field stress was applied to test specimen at room temperature (25°C). Four levels of electric field stress, 25 kVmm, 50 kVmm, 75 kVmm and 100 kVmm, were used. In order to investigate space charge distribution characteristic, space charge distribution characteristics were measured after applying electric field stress 15 min, 30 min and 60 min, respectively. The results show that applied time and magnitude of dc electric field stress play an important role to the formation of space charge.
Open Science Index 72, 2012