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Diagnosis of moisture in oil/paper distribution cables--Part II: water penetration in cable insulation--experiment and modeling
- Source :
- IEEE Transactions on Power Delivery. Jan 2004, Vol. 19 Issue 1, p15, 6 p.
- Publication Year :
- 2004
-
Abstract
- Dynamics of water penetration in mass impregnated cable insulation has been studied. For experimental purposes, artificial damage has been inflicted to a 40-cm-long cable sample and water ingress has been continuously monitored by frequency response measurements. A similar experiment has been conducted on 2.8-m-long cable sample, where both frequency response and time-domain reflectometry (TDR) measurements have been performed. After termination of both experiments, actual moisture content has been measured radially and axially. Based on dielectric measurements, a model of water ingress has been developed and diffusion coefficients have been estimated for mass impregnated cable paper. Index Terms--Dielectric response, Karl Fischer titration, mass impregnated cable, moisture content, oil paper insulation.
- Subjects :
- Electric power distribution
Subjects
Details
- Language :
- English
- ISSN :
- 08858977
- Volume :
- 19
- Issue :
- 1
- Database :
- Gale General OneFile
- Journal :
- IEEE Transactions on Power Delivery
- Publication Type :
- Academic Journal
- Accession number :
- edsgcl.112798783