Analysis of Influence of Water Tree Size on Electric Field Distribution of XLPE Cables
This paper presents a finite element simulation analysis of the effect of water tree size on the electric field distri-bution of 110 kV cross-linked polyethylene (XLPE)cables. First the internal conductive and external conductive water trees in the vented water trees are modeled separately,in which the typical water tree shapes are equivalent to elliptical models. Then the electric field distributions under different water tree types and sizes are analyzed. The results show that the electric field distortion at the water tree tip is the most serious,and from the perspective of electric field intensity,the internal conductive water tree is more harmful than the external conductive water tree under the same water tree size.
cablewater treeelliptical modelelectric field distortion
万方数据
维普
