Recovery voltage measurement on oil-paper insulation with simple geometry and controlled environment


Kuang, Y C, Chen, G and Jarman, P (2004) Recovery voltage measurement on oil-paper insulation with simple geometry and controlled environment. In, 2004 IEEE International Conference on Solid Dielectrics, Toulouse, France, 05 - 09 Jul 2004. IEEE, 739-742.

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Description/Abstract

Using the recovery voltage of oil-paper insulation to diagnose its state of maintenance is very popular among electrical engineers. Many advantages of using recovery voltage includes non-intrusive, easy to operate, more resistant to noise compare to other non-intrusive diagnostic methods. However the lack of understanding on the physical process causes dispute over interpretation of measurement results. This also discourages further application of recovery voltage to non-standard insulation systems because there is no known standard reference to which comparison can be made. Experiments have been carried out to study recovery voltage of oil-paper as a response of insulation material. The variation of recovery voltage in response to sample geometry, temperature and moisture are studied. The results reveal that the traditional Debye polarisation model, implemented as parallel RC-circuit in recovery voltage software, is not a satisfactory description of the physical process. The interfacial charge movements play more dominant role in the formation of recovery voltage in oil-paper insulation systems and the use of exponential function to describe the interfacial charge movements is both uneconomical and unphysical.

Item Type: Conference or Workshop Item (Paper)
Additional Information: Event Dates: July 5--9, 2004
ISBNs: 0780383486
Keywords: Recovery voltage, oil-paper insulation, electrode geometry
Divisions: Faculty of Physical Sciences and Engineering > Electronics and Computer Science
Faculty of Physical Sciences and Engineering > Electronics and Computer Science > EEE
ePrint ID: 260167
Date Deposited: 01 Dec 2004
Last Modified: 27 Mar 2014 20:02
Further Information:Google Scholar
ISI Citation Count:0
URI: http://eprints.soton.ac.uk/id/eprint/260167

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