Application of very-high-frequency (VHF) method to ceramic insulators Wong, Khoi Loon 2004, Application of very-high-frequency (VHF) method to ceramic insulators, IEEE transactions on dielectrics and electrical insulation, vol. 11, no. 6, pp. 1057-1064, doi: 10.1109/TDEI.2004.1387829. Attached Files Name Description MIMEType Size Downloads Title Application of very-high-frequency (VHF) method to ceramic insulators Author(s) Wong, Khoi Loon Journal name IEEE transactions on dielectrics and electrical insulation Volume number 11 Issue number 6 Start page 1057 End page 1064 Publisher Institute of Electrical Electonics Engineers Place of publication Piscataway, N. J. Publication date 2004-12 ISSN 1070-9878 1558-4135 Summary A VHF method (30-300 MHz) is applied to identify faults and defects in ceramic insulators. Insulators which exhibit internal cracks and fractures are used as test samples. Different artificial conditions are introduced to the test samples according to the IEC 507 standard under wet and dry conditions. Using a cascading signal processing technique and analysis methods such as FFT and fractal analysis, VHF signals acquired by digital scope are processed and analyzed. This study indicates that the fractal dimension can be used as an effective tool to isolate the common faulty conditions found on the ceramic insulators. The results from this study strongly support the prospect of using a VHF method to monitor the physical condition of ceramic insulators. Language eng DOI 10.1109/TDEI.2004.1387829 Field of Research 090699 Electrical and Electronic Engineering not elsewhere classified HERDC Research category C1 Refereed article in a scholarly journal Copyright notice ©2004, IEEE Persistent URL http://hdl.handle.net/10536/DRO/DU:30002758 Document type: Journal Article Collection: School of Engineering Related Links Link Description Connect to published version (restricted access) Go to link with your DU access privileges     Unless expressly stated otherwise, the copyright for items in DRO is owned by the author, with all rights reserved. Versions Version Filter Type Mon, 07 Jul 2008, 08:33:40 EST Thu, 01 Jul 2010, 12:55:57 EST Thu, 01 Jul 2010, 12:57:22 EST Fri, 02 Jul 2010, 08:26:33 EST Filtered Full Citation counts:   Cited 19 times in TR Web of Science Cited 24 times in Scopus Search Google Scholar Access Statistics: 372 Abstract Views, 0 File Downloads  -  Detailed Statistics Created: Mon, 07 Jul 2008, 08:33:40 EST

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