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Showing result 1 - 5 of 18 swedish dissertations matching the above criteria.
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1. An FRA Transformer Model with Application on Time Domain Reflectometry
Abstract : Frequency response analysis (FRA) is a frequency-domain method which is used to detect mechanical faults in transformers. The frequency response of a transformer is determined by its geometry and material properties, and it can be considered as the transformer’s fingerprint. READ MORE
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2. On-line time domain reflectometry diagnostics of medium voltage XLPE power cables
Abstract : Degradation of XLPE insulated power cables by water-trees is a primary cause of failure of these cables. The detection of water-trees and information about the severity of the degradation can be obtained with off-line measurement using dielectric spectroscopy. In many situations only a limited part of the cable may be degraded by the water-trees. READ MORE
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3. Conceptualization of solute transport using time domain reflectometry. A combined laboratory and field study
Abstract : Solute transport in the unsaturated zone is a complex process. The first of the two objectives for this study was to examine how it could be conceptualized under different flow conditions. READ MORE
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4. Non-destructive measurements of solute transport in the unsaturated zone using time domain reflectometry
Abstract : .... READ MORE
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5. Techniques for Localization of Insulation Degradation along Medium-Voltage Power Cables
Abstract : Time Domain Reflectometry (TDR) has been used for localization of transmission line discontinuities in diverse applications. Various challenges have to be addressed when applying TDR for localization of insulation degradation in power cables. READ MORE