Title :
Dielectric response for condition assessment of PILC distribution cables
Author_Institution :
Norwegian Univ. of Sci. & Technol., Trondheim, Norway
Abstract :
The purpose of this paper is to present results from a laboratory examination of the sensitivity of time-and frequency domain dielectric response measurements regarding detection of water in mass impregnated lead covered distribution (PILC) cables. The results show that increase of dc conductivity is a sensitive indication of high local content of water.
Keywords :
electric breakdown; electrical conductivity; frequency-domain analysis; time-domain analysis; underground cables; PILC distribution cables; condition assessment; dc conductivity; dielectric response; frequency domain dielectric response; high local water content; mass impregnated lead covered distribution cables; time-domain response; Cables; Current measurement; Dielectric loss measurement; Dielectric losses; Dielectric measurements; Frequency measurement; Loss measurement; Permittivity measurement; Phase measurement; Voltage;
Conference_Titel :
Electrical Insulation and Dielectric Phenomena, 2003. Annual Report. Conference on
Print_ISBN :
0-7803-7910-1
DOI :
10.1109/CEIDP.2003.1254821
