Modeling Partial Discharge in a Three-phase Cable Joint Experiment with Minimal Adjustable Parameters

被引:8
|
作者
Callender, G. [1 ]
Lewin, P. L. [1 ]
Hunter, J. A. [2 ]
Rapisarda, P. [3 ]
机构
[1] Univ Southampton, Sch Elect & Comp Sci, Tony Davies High Voltage Lab, Southampton SO17 1BJ, Hants, England
[2] Mott MacDonald, Brighton BN1 4FY, E Sussex, England
[3] Univ Southampton, Sch Elect & Comp Sci, Vis Learning & Control Grp, Southampton SO17 1BJ, Hants, England
基金
英国工程与自然科学研究理事会;
关键词
Partial discharges; cable insulation; finite element methods; FREQUENCY; BEHAVIOR; VOLTAGE; CAVITY;
D O I
10.1109/TDEI.2016.006045
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
A general physical model of partial discharge (PD) has been developed and used to simulate discharges within a void at the tip of a metallic spike defect within a threephase 11 kV paper insulated lead covered (PILC) cable joint. Discharges are modeled by altering surface charge density at the void boundary using a logistic function distribution. The model was validated against experimental data, and a good agreement was observed with minimal free parameters. The model was then used to investigate the impact of single phase energization on PD activity in three-phase PILC cable joints. It was concluded that PD testing of three-phase PILC cable joints should be performed at raised temperatures with the cable fully energized as this results in a higher frequency of PD activity, and reduces the level of background PD from cable terminations. This research represents a further step towards developing PD models that can describe measurements taken from operational high voltage plant.
引用
收藏
页码:279 / 287
页数:9
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