Title :
The influence of pre-conditioning on space charge formation in LDPE
Author :
Fleming, Robert J. ; Henriksen, Mogens ; Holboll, Joachim T.
Author_Institution :
Dept. of Phys., Monash Univ., Clayton, Vic., Australia
Abstract :
In this paper, the authors present space charge accumulation data for planar low density polyethylene samples subjected to 20 kV/mm DC fields at room temperature. The data were obtained using the laser-induced-pressure-pulse (LIPP) technique. Some of the samples were conditioned by holding them at 40°C in short-circuit at rotary pump pressure for 48 hrs prior to measurement. Such conditioning had no consistent effect on the space charge. The extent of charge injection/extraction at the semicon electrodes appeared to vary considerably between samples
Keywords :
electric breakdown; insulation testing; measurement by laser beam; polyethylene insulation; space charge; 40 C; 48 h; LDPE insulation; charge injection/extraction; electrical insulation tests; laser-induced pressure pulse technique; low density polyethylene; pre-conditioning; short-circuit; space charge accumulation; space charge formation; Charge measurement; Circuits; Current measurement; Electrodes; Polyethylene; Pressure measurement; Pulse measurements; Pump lasers; Space charge; Temperature measurement;
Conference_Titel :
Electrical Insulation, 1996., Conference Record of the 1996 IEEE International Symposium on
Conference_Location :
Montreal, Que.
Print_ISBN :
0-7803-3531-7
DOI :
10.1109/ELINSL.1996.549314
