Title :
Investigation of space charge in low-density polyethylene using a field probe technique
Author :
Khalil, M. Salah ; Hansen, Bo Svarrer
Author_Institution :
Dept. of Electr. Power Eng., Tech. Univ. of Denmark, Lyngby, Denmark
fDate :
6/1/1988 12:00:00 AM
Abstract :
A test method that uses a capacitive field probe to investigate the space charge distribution in low-density polyethylene (LDPE) is described. Specimens of 7-mm thickness were stressed under 100 kV DC at room temperature and for different time periods. The results indicate that the LDPE insulation layer between electrodes is occupied by positive and negative homocharges. The dependence of space charge distribution on the stressing time is also evident
Keywords :
charge measurement; insulation testing; organic insulating materials; polymers; probes; space charge; 100 kV; DC stressing; LDPE; capacitive field probe; insulation layer; low-density polyethylene; negative homocharges; positive homocharges; space charge; stressing time; test method; Cable insulation; Current measurement; Electrodes; Oil filled cables; Plastic insulation; Polyethylene; Polymers; Probes; Space charge; Testing;
Journal_Title :
Electrical Insulation, IEEE Transactions on
