Spectral Analysis for Current and Temperature Measurements in Power Cables

Abstract This research aims to detect spectral properties under thermal and current variations for power cables. Therefore, spectral diversities are exposed under current unbalances and different load conditions through the spectral analysis techniques. Also, huge load variations are easily detected from the current signals in the time-frequency plane using the short-time frequency analysis. Hence, this study presents the determination of the frequency characteristics and spectral similarities between the phase currents and thermal variations.

[1]  F. J. Hoppe,et al.  The use of real-time monitoring and dynamic ratings for power delivery systems and the implications for dielectric materials , 1999 .

[2]  M. H. McGrath,et al.  The calculation of the temperature rise and load capability of cable systems , 1957, Transactions of the American Institute of Electrical Engineers. Part III: Power Apparatus and Systems.

[3]  George J. Anders,et al.  Rating of Electric Power Cables in Unfavorable Thermal Environment , 2005 .

[4]  George J. Anders,et al.  Rating of Electric Power Cables: Ampacity Computations for Transmission, Distribution, and Industrial Applications , 1997 .

[5]  Robert John Millar,et al.  A comprehensive approach to real time power cable temperature prediction and rating in thermally unstable environments , 2006 .

[6]  Rick Bitter,et al.  LabView advanced programming techniques , 2000 .

[7]  Serhat Şeker,et al.  A Reliability Model for Induction Motor Ball Bearing Degradation , 2003 .

[8]  S. Whitehead,et al.  Current rating of cables for transmission and distribution , 1938 .

[9]  A. Ertas,et al.  Thermal analysis for determination of current carrying capacity of PE and XLPE insulated power cables using finite element method , 2004, Proceedings of the 12th IEEE Mediterranean Electrotechnical Conference (IEEE Cat. No.04CH37521).

[10]  S. Seker Determination of air-gap eccentricity in electric motors using coherence analysis , 2000 .

[11]  Alfredo Vaccaro,et al.  Power cables' thermal protection by interval simulation of imprecise dynamical systems , 2004 .

[12]  O.P. Malik,et al.  Thermal model based digital relaying algorithm for induction motor protection , 1996, Proceedings of 1996 Canadian Conference on Electrical and Computer Engineering.

[13]  D. Poljak,et al.  Nonlinear-coupled electric-thermal modeling of underground cable systems , 2006, IEEE Transactions on Power Delivery.

[14]  Saeed Vaseghi,et al.  Advanced Signal Processing and Digital Noise Reduction , 1996 .