Title :
Effect of additives on DC treeing breakdown in polyethylene under divergent fields
Author :
Nawata, Masahito ; Kawamura, Hideaki ; Ieda, Masayuki
Author_Institution :
Dept. of Electr. & Electron. Eng., Meijo Univ., Nagoya, Japan
fDate :
6/1/1990 12:00:00 AM
Abstract :
The effect of additives on DC treeing breakdown phenomena and space-charge formation in polymeric materials is studied under divergent fields. Experimental results are presented to show that: (1) The DC treeing breakdown phenomena are considerably affected by the space charge. (2) The presence of acetophenon in low-density polyethylene (LDPE) enhances the amount of accumulated space charge, while blending with ionomer or polyamide suppresses it. (3) Blending ionomer or polyamide into LDPE improves the DC tree resistance
Keywords :
electric breakdown of solids; organic insulating materials; polymers; space charge; DC treeing breakdown; LDPE; acetophenon; additives; divergent fields; ionomer; polyamide; polyethylene; space-charge formation; Additives; Breakdown voltage; Electric breakdown; Electric variables measurement; Electrodes; Needles; Polyethylene; Polymers; Space charge; Trees - insulation;
Journal_Title :
Electrical Insulation, IEEE Transactions on
