Electrical Aging Phenomena of XLPE and EPR Cable Insulation Energized by Switching Impulses

被引：17
|
作者：
Grzybowski, S. [1 ]
Shrestha, P. [1 ]
Cao, L. [1 ]
机构：
[1] Mississippi State Univ, Dept Elect & Comp Engn, High Voltage Lab, Mississippi State, MS 39762 USA
来源：
ICHVE 2008: 2008 INTERNATIONAL CONFERENCE ON HIGH VOLTAGE ENGINEERING AND APPLICATION | 2008年
关键词：
Degradation; cable insulation; partial discharges; AC breakdown; switching impulse; dielectric strength;
D O I：
10.1109/ICHVE.2008.4773963
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：
During the operation of power system, the insulation of high voltage extruded cables will be placed under high electrical stress, including overvoltages caused by switching surges. In the study, 15 W XLPE and EPR power cable samples are energized by switching impulses. The aging phenomena of cable insulation are observed by the measurement of partial discharge level and AC breakdown voltage during the aging process. The study helps to determine the reliability of power cables, as well as a better understanding of the aging mechanism. Many factors other than aging by switching surges have to be considered as an aging force for the insulation degradation.
引用
收藏
页码：422 / 425
页数：4
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