Localization of Insulation Degradation in Medium Voltage Distribution Cables

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...

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Bibliographic Details
Main Authors: Eriksson, R., Papazyan, R., Mugala, G.
Format: Conference Proceeding
Language:eng ; jpn
Subjects:
Cable insulation
Cables
Degradation
Dielectrics and electrical insulation
Frequency measurement
Impedance
Medium voltage
Pulse measurements
Time measurement
Trees - insulation
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Summary: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.
ISSN:2164-7011
2690-3423
DOI:10.1109/ICIIS.2006.365658