Title :
Localization of Insulation Degradation in Medium Voltage Distribution Cables
Author :
Eriksson, R. ; Papazyan, Ruslan ; Mugala, Gavita
Author_Institution :
Dept. of Electr. Eng., R. Inst. of Technol., Stockholm
Abstract :
The paper presents a methodology for successful localization of degraded insulation in medium voltage cables. Extensive work has been performed on development of cable models and characterization of new and degraded cable material to support the diagnostic technique. A non-destructive technique has been developed using differential time domain reflectometry (TDR) measurements. The main application has been localization of water treed sections of XLPE cables where the voltage dependence of the permittivity of water treed insulation has been used as diagnostic criteria.
Keywords :
XLPE insulation; insulation testing; nondestructive testing; permittivity; power cable insulation; power cable testing; time-domain reflectometry; trees (electrical); TDR measurement; XLPE cables; cable material; differential time domain reflectometry; insulation degradation localization; medium-voltage distribution cables; nondestructive diagnostic technique; permittivity; water treed section insulation; Cable insulation; Cables; Degradation; Dielectrics and electrical insulation; Frequency measurement; Impedance; Medium voltage; Pulse measurements; Time measurement; Trees - insulation;
Conference_Titel :
Industrial and Information Systems, First International Conference on
Conference_Location :
Peradeniya
Print_ISBN :
1-4244-0322-7
DOI :
10.1109/ICIIS.2006.365658
