NDLI: Characterisation of PD occurring in injected air bubbles in block polymeric insulation

Content Provider	IEEE Xplore Digital Library
Author	Adhikari, D. Hepburn, D.M. Stewart, B.G.
Copyright Year	2012
Description	Author affiliation: Glasgow Caledonian University (Adhikari, D.; Hepburn, D.M.; Stewart, B.G.)
Abstract	Gas filled cavities in solid insulation can form during production and are likely to have initial spherical or ellipsoidal geometry; as degradation takes place the shape will distort. Due to the difficulties of producing spherical and ellipsoidal cavity shapes most previous partial discharge (PD) measurements, in polymeric insulations, have used a layered polymer sandwich approach to create flat cylindrical voids. A series of experiments is carried out on air bubble voids inside block polymeric insulation. This paper will investigate and compare the PD repetition rate, PD magnitude, PD distribution plots and the total charge injection in each void for samples with varying sizes of the air bubble. The PD characteristics recorded from these air bubble arrangements will also be compared to those obtained from layered polymer models of similar dimensions. Comparison of the natural and layered void results will provide information on validity of sample production methods.
Starting Page	48
Ending Page	51
File Size	372866
Page Count	4
File Format	PDF
ISBN	9781467312530
ISSN	00849162
e-ISBN	9781467312523
e-ISBN	9781467312516
DOI	10.1109/CEIDP.2012.6378719
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-10-14
Publisher Place	Canada
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Partial discharges Polymers Insulation Cavity resonators Discharges (electric) Resins Electrodes
Content Type	Text
Resource Type	Article

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