Effects of different ionic solutions on statistical length distribution of water trees in XLPE cable insulation

Author

Qureshi, M.I. ; Malik, N.H. ; Al-Arainy, A.A.

Author_Institution

Dept. of Electr. Eng., King Saud Univ., Riyadh, Saudi Arabia

Volume

1

fYear

2000

fDate

2000

Firstpage

513

Abstract

Tests are conducted to investigate the role of varying concentrations of different salt solutions on the water needle and vented water trees grown in insulation discs cut from transmission class XLPE cables. An increase in salt concentration displayed different effects on the average length of the needle grown trees which depended upon the salt solution used. Statistical length distributions of vented water trees produced at the solid-liquid interface was found to be best described by a 2D Weibull stochastic model, rather than the log-normal model

Keywords

Weibull distribution; XLPE insulation; cable insulation; cable testing; insulation testing; stochastic processes; trees (electrical); 2D Weibull stochastic model; XLPE cable insulation; insulation discs; ionic solutions; salt concentration; salt solutions; solid-liquid interface; statistical length distribution; tests; transmission class XLPE cables; vented water trees; water needle; water trees; Cable insulation; Chemicals; Insulation testing; Needles; Power cable insulation; Power cables; Solid modeling; Stress; Trees - insulation; Weibull distribution;

fLanguage

English

Publisher

ieee

Conference_Titel

Properties and Applications of Dielectric Materials, 2000. Proceedings of the 6th International Conference on

Conference_Location

Xi´an

Print_ISBN

0-7803-5459-1

Type

conf

DOI

10.1109/ICPADM.2000.875742

Filename

875742