Space charge distribution in polyethylene due to the water diffusion

Author

Dang, Z.-M. ; Tu, D.M. ; Nan, C.-W.

Volume

2

fYear

2003

fDate

1-5 June 2003

Firstpage

654

Abstract

Space charge distribution and water absorption in polyethylene (PE) are studied in this paper. PE of hydrophobicity has a content hydrophility by modification using Ethylene-acrylic acid (EAA) and sorbital. The amount of water absorption increases with increasing applied fields and times. The amount of water absorption under dc field case is larger than that under ac stress. The water absorption in PE modified is larger than that in pure PE. In spite of the increase in the water absorption with EAA and sorbital added, the results show that the PE cable modified by EAA and sorbital have a long life of insulation due to little the space charge and water treeing.

Keywords

dielectric materials; polyethylene insulation; polymers; space charge; trees (electrical); Ethylene-acrylic acid; ac stress; dc field; hydrophility; hydrophobicity; insulation; polyethylene; space charge; space charge distribution; water diffusion; water treeing; Absorption; Cable insulation; Dielectric materials; Dielectrics and electrical insulation; Polyethylene; Power cable insulation; Power cables; Space charge; Trees - insulation; Water;

fLanguage

English

Publisher

ieee

Conference_Titel

Properties and Applications of Dielectric Materials, 2003. Proceedings of the 7th International Conference on

ISSN

1081-7735

Print_ISBN

0-7803-7725-7

Type

conf

DOI

10.1109/ICPADM.2003.1218502

Filename

1218502