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Title: Surge arrester faults and their causes at eThekwini electricity
Authors: Gumede, Makhosonke 
D'Almaine, George Frederick 
Keywords: Polymer housed surge arrester;Moisture ingress;Infrared scanning and visual inspection
Issue Date: Mar-2014
Publisher: Engineering and Technology Publishing
Source: M. Gumede and G. Frederick d’Almaine. 2014. Surge Arrester Faults and Their Causes at EThekwini Electricity," International Journal of Electrical Energy, vol. 2, no. 1, pp. 39-44.
Journal: International journal of electrical energy 
Failures in polymeric housed surge arresters have recently increased. This has resulted in a number of studies being done in order to establish the condition of surge arresters whilst in service, the aim being to remove them from service before they failed. This paper utilizes a thermovision technique to predict potential faults allied to a visual inspection of arresters placed in eThekwini outdoor substations. Infrared analysis was valuable in obtaining sufficient information on arrester failures by detecting hotspots within the arresters while still connected to the system and comparing these test results with those performed on failed units. During the visual internal inspection of arresters evidence of punctures, treeing, tracking and moisture masks were noted on ZnO blocks and seals.
ISSN: 2301-3656
DOI: 10.12720/ijoee.2.1.39-44
Appears in Collections:Research Publications (Engineering and Built Environment)

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