Title :
Method to choose HV cable insulating materials and to characterize their aging
Author :
Janah, H. ; Bezille, J. ; Becker, J.
Author_Institution :
Alcatel Cable, Calais, France
Abstract :
A method to characterize insulating materials is to inject a known quantity of charges into the insulation and to evaluate the electrical potential built up around the zone where charges are injected. If density of injected charges is relevant with respect to charge density which can be sustained by the material, the method is able to point out, notably, the evolution of its dielectric characteristics when submitted to an electrical and/or thermal aging. This paper deals with the comparison of detrapping field of two materials for a given implantation condition. The evolution of this characteristic within the insulation thickness of an HV cable is also characterized
Keywords :
power cable insulation; HV cable insulating materials; charge density; charge injection; detrapping field; dielectric characteristics; electrical aging; electrical potential; implantation; thermal aging; Aging; Cable insulation; Capacitive sensors; Dielectric breakdown; Dielectric materials; Dielectrics and electrical insulation; Electric breakdown; Electric potential; Polyethylene; Space charge;
Conference_Titel :
Electrical Insulation and Dielectric Phenomena, 1994., IEEE 1994 Annual Report., Conference on
Conference_Location :
Arlington, TX
Print_ISBN :
0-7803-1950-8
DOI :
10.1109/CEIDP.1994.591749
