Title :
Do semicons affect space charge?
Author :
Ho, Y.F.F. ; Chen, G. ; Davies, A.E. ; Hampton, R.N. ; Swingler, S.G. ; Sutton, S.J.
Author_Institution :
Southampton Univ., UK
fDate :
6/23/1905 12:00:00 AM
Abstract :
This paper reports on space charge measurements on ~1.5 mm thick XLPE and polyolefinic plaques with two different treatments and semicon electrodes, namely, the same XLPE and polyolefin loaded with carbon. Samples were subjected to both DC and 50 Hz AC electric stresses in the region of 25 kV/mm (at room temperature). Measurements of charge profiles and stress distributions were made using the modified laser induced pressure propagation system. Emphasis has been placed on comparing the space charge characteristics of the two insulation systems with the different sernicon electrodes. The effects of sample treatment (i.e. degassing) on the space charge dynamics are also presented
Keywords :
XLPE insulation; ageing; electrodes; organic insulating materials; power cable insulation; space charge; 1.5 mm; XLPE plaques; ageing; charge profiles; degassing; electric stresses; insulation systems; modified laser induced pressure propagation; polyolefinic plaques; sample treatment; semiconducting electrodes; semiconducting screens effect; space charge; stress distributions; Charge measurement; Current measurement; Electrodes; Insulation; Optical propagation; Pressure measurement; Space charge; Stress measurement; Temperature measurement; Thickness measurement;
Conference_Titel :
Solid Dielectrics, 2001. ICSD '01. Proceedings of the 2001 IEEE 7th International Conference on
Conference_Location :
Eindhoven
Print_ISBN :
0-7803-6352-3
DOI :
10.1109/ICSD.2001.955526
