Skip to content
2000
Volume 14, Issue 1
  • ISSN: 2352-0965
  • E-ISSN: 2352-0973

Abstract

Background: Electrical trees can affect the distribution of electric field and space charge in cross-linked polyethylene (XLPE) cables, and play an important role in insulation aging and breakdown of cables. Therefore, it is important to study the influence of electrical trees in cables. Methods: In this study, the finite element method of second-order tetrahedral element and electromagnetic theory method is used for calculation. A model of XLPE cable with three-dimensional electrical trees is taken as an example for calculation. Results: The results show that the longer the trunk length is, the greater the electric field intensity at the end of the branch is; the farther the electrical trees are from the insulation side of the high voltage, the more the electric field intensity of each location decreases. Conclusion: With the increase of the resistivity of the trees, the electric field intensity and charge density tend to be stable at the end of the tree.

Loading

Article metrics loading...

/content/journals/raeeng/10.2174/2352096513999200807162151
2021-02-01
2025-07-05
Loading full text...

Full text loading...

/content/journals/raeeng/10.2174/2352096513999200807162151
Loading
This is a required field
Please enter a valid email address
Approval was a Success
Invalid data
An Error Occurred
Approval was partially successful, following selected items could not be processed due to error
Please enter a valid_number test