DocumentCode :
2482184
Title :
Characterisation of PD occurring in injected air bubbles in block polymeric insulation
Author :
Adhikari, D. ; Hepburn, D.M. ; Stewart, B.G.
fYear :
2012
fDate :
14-17 Oct. 2012
Firstpage :
48
Lastpage :
51
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.
Keywords :
bubbles; partial discharge measurement; polymer blends; polymer insulators; PD; PD characteristics; block polymeric insulation; ellipsoidal cavity shape; flat cylindrical void; gas filled cavity; injected air bubble; layered polymer model; layered polymer sandwich approach; partial discharge measurement; sample production method; solid insulation; spherical cavity shape; spherical geometry; Cavity resonators; Discharges (electric); Electrodes; Insulation; Partial discharges; Polymers; Resins;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Electrical Insulation and Dielectric Phenomena (CEIDP), 2012 Annual Report Conference on
Conference_Location :
Montreal, QC
ISSN :
0084-9162
Print_ISBN :
978-1-4673-1253-0
Electronic_ISBN :
0084-9162
Type :
conf
DOI :
10.1109/CEIDP.2012.6378719
Filename :
6378719
Link To Document :
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