A Statictical Analysis of Partial Discharge Measured in MI-PPLP Sheet According to Temperature and Voltage

被引：0

作者：

Kim, Suhwan ^{[1
]}

Jung, Chaekyun ^{[1
]}

Kim, Minju ^{[1
]}

Park, Heungseok ^{[1
]}

Han, Kisun ^{[1
]}

Kang, Jiwon ^{[1
]}

机构：

[1] KEPCO Res Inst, Daejeon, South Korea

来源：

2022 9TH INTERNATIONAL CONFERENCE ON CONDITION MONITORING AND DIAGNOSIS (CMD) | 2022年

关键词：

HVDC; MI-PPLP; Cable; Partial Discharge;

D O I：

暂无

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

The study conducted experiments that simulated voids in MI-PPLP sheets in order to understand the pattern of DC partial discharge(PD) occurring in HVDC MI-PPLP cable and intended to explain the DC PD pattern based on the results of the experiments. DC PD measurement was made applying 25kV, 30kV, and 35kV voltages to MI-PPLP Sheet (thickness 0.125mm, size 50mm x 50mm) simulating a void in insulation oil heated to 55 degrees C and 75 degrees C, respectively. Statistical analysis was conducted using the magnitude and number of DC PD occurred in this experiment as random variables. From the results of the statistical analysis on the magnitude of DC PD and PD occurrence time gaps in void of MI-PPLP sheet, changes in the probability distribution according to temperature and applied voltage could be distinguished. In addition, it was identified that the average value of the DC PD magnitude and the number of DC PD increased as the applied voltage and temperature increased, and the larger increase in the number of DC PD occurred according to the temperature rise was also observed. It is estimated that the number of the DC PD increased because the change in the magnitude of the conductivity caused by the change in temperature and voltage had an effect on the charge accumulation for the DC PD occurrence.

引用

页码：545 / 549

页数：5