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Continuous online monitoring of partial discharges in high voltage cables

By Y. Tian, P.L. Lewin, J.S. Wilkinson, S.J. Sutton, S.G. Swingler and ISEI 2004


This paper reviews data acquisition, transmission and processing methodologies for continuous online monitoring of partial discharges in power cable systems. A PD continuous online monitoring system for underground cable circuits using capacitive couplers, LiNbO3 electro-optic modulators, laser, optical switch and optical fibers has been proposed. Data processing methods include pulse shape and spectrum analysis, time of flight analysis, phase-resolved two-dimensional histograms, three-dimensional (phi)-q-n patterns, trend analysis, wavelet-based denoising, alarm strategy and telecommunication function to enable remote control and data download

Topics: QC, TK
Publisher: IEEE
Year: 2004
OAI identifier:
Provided by: e-Prints Soton

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