Evaluating failures of polymer insulators in Brazilian distribution networks

Evaluating failures of polymer insulators in Brazilian distribution networks

Investigations aiming to evaluate cause of failure of polymeric insulators used in Brazilian distribution networks reveal that it is not the presence of internal voids in their bulk but the fissures formed in the vicinity of insulator pins during their installation that cause the failure.

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Bibliographic Details
Published in:IEEE electrical insulation magazine Vol. 35; no. 1; pp. 38 - 44
Main Authors: Bezerra, J.M.B., Rodrigues, S.H.M.S., Lopes, B.R.F., Lopes, D. S., Ferreira, V.A.L.
Format: Magazine Article
Language:English
Published: New York IEEE 01-01-2019
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects:
Atmospheric modeling
Conductors
Distribution management
distribution networks
Electric fields
finite element method
Finite element methods
Insulators
Networks
Partial discharges
partial discharges in voids
polymer insulators
Polymers
Power distribution
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Description
Summary:Investigations aiming to evaluate cause of failure of polymeric insulators used in Brazilian distribution networks reveal that it is not the presence of internal voids in their bulk but the fissures formed in the vicinity of insulator pins during their installation that cause the failure.
ISSN:0883-7554
1558-4402
DOI:10.1109/MEI.2019.8575685