Search for dissertations about: "TDR"
Showing result 6 - 10 of 33 swedish dissertations containing the word TDR.
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6. Time and Frequency Domain Measurement Methods for High Frequency Characterisation of Power Cables
Abstract : Time Domain Reflectometry (TDR) has been used forlocalisation of transmission line discontinuities in variousapplications. One of the challenges when applying TDR on powercables is to obtain knowledge of the high frequencycharacteristics of both the degraded and the undegradedsections of the cable. READ MORE
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7. 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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8. 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
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9. Development of on-line diagnostic methods for medium voltage XLPE power cables
Abstract : On-line diagnostics of power system components is an important area since it allows the diagnostics to be performed at regular intervals during the normal operation of the components. This combined with reliability centered maintenance could lead to reduced customer outages. READ MORE
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10. 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