Title :
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
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;
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
DOI :
10.1109/ICPADM.2000.875742
