The effect of degree of cross-linking on accumulation of space charge in cross-linked polyethylene (XLPE)

Author

Li, Jixiao ; Zhang, Yewen ; Zheng, Feihu ; Peng, Zongren ; Wu, Changshun ; Xia, Zhongfu

Author_Institution

Pohl Inst. of Solid State Phys., Tongji Univ., Shanghai, China

fYear

2001

fDate

2001

Firstpage

164

Lastpage

166

Abstract

The accumulation of space charge in cross-linked polyethylene (XLPE) under DC stress was investigated with PWP method and TSD method. The activation energy of different peaks of TSD is obtained with split multi-peak method; the polarization of dipoles and impurities is distinguished. The results show that cross-linking agent is one of the sources of hetero-space charge, and the homo-space charge is associated with cross-linking residues. They have the major effect on the accumulation of space charge in XLPE sample

Keywords

XLPE insulation; dielectric polarisation; power cable insulation; space charge; thermally stimulated currents; PWP method; TSD method; XLPE; activation energy; cross-linked polyethylene; cross-linking; cross-linking residues; dipole polarization; hetero-space charge; homo-space charge; pressure wave propagation method; space charge accumulation; split multi-peaks method; thermally stimulated discharge methods; Anodes; Cathodes; Circuits; Electrodes; Impurities; Ionization; Polyethylene; Power cables; Space charge; Temperature;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Insulating Materials, 2001. (ISEIM 2001). Proceedings of 2001 International Symposium on

Conference_Location

Himeji

Print_ISBN

4-88686-053-2

Type

conf

DOI

10.1109/ISEIM.2001.973595

Filename

973595