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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Wagenaars, P. Wouters, P.A.A.F. van der Wielen, P.C.J.M. Steennis, E.F. |
| Copyright Year | 2009 |
| Description | Author affiliation: KEMA, P.O. Box 9035, 6800 ET Arnhem, The Netherlands (van der Wielen, P.C.J.M.) || Eindhoven University of Technology, P.O. Box 513, 5600 MB, The Netherlands (Wagenaars, P.; Wouters, P.A.A.F.; Steennis, E.F.) |
| Abstract | Online partial discharge (PD) detection and location in cable systems is a valuable tool for the estimation of the condition of the system. Different types of cables are encountered in medium-voltage (MV) connections and appropriate models must be constructed to predict PD signal propagation. For three-core power cables with a single common earth screen a multiconductor transmission line (MTL) model is required. This paper presents an MTL model of a such a cable, including interpretation of the decoupled solution as convenient propagation modes. A complicating factor in the estimation of the transmission line parameters of these propagation modes is the presence of semiconducting layers. These layers have a significant influence on the transmission line parameters. Unfortunately, the dielectric properties of these layers are usually unknown for the frequency range of interest for PD diagnostics. It is shown that nonetheless the characteristic impedance and propagation velocity can be estimated using information available in most cable specifications. The estimated values are validated using pulse response measurements on a cable sample. |
| Starting Page | 433 |
| Ending Page | 436 |
| File Size | 1658353 |
| Page Count | 4 |
| File Format | |
| ISBN | 9781424443673 |
| DOI | 10.1109/ICPADM.2009.5252396 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2009-07-19 |
| Publisher Place | China |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Partial discharges Earth Power system modeling Multiconductor transmission lines Power transmission lines Pulse measurements Medium voltage Predictive models Power cables Semiconductivity parameter estimation three-core power cables partial discharges multiconductor transmission line |
| Content Type | Text |
| Resource Type | Article |
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