FERNANDES, J. M. B.; http://lattes.cnpq.br/1499915319208603; FERNANDES, Josué Marcos Batista.
Abstract:
This paper shows the study of the zinc oxide surge arrester’s thermal behavior, with
computational simulations allied to thermography, and to do so, it was built a
computational model, based on real surge arresters data. Along the study, the differences
between the ceramic housing and polymeric housing surge arresters are studied, both of
the constructive and thermal behavior aspects. The impact of using different heat transfer
mechanisms in the simulations of the ceramic housing surge arrester is also studied.
Besides, there is a comparison in the computational effort needed to process the
simulation of the ceramic housing surge arrester in two models: one using electrical input
(voltage and current) and another using thermal input directly, knowing the dissipated
power, previously. It was simulated a situation of impulsive behavior energy as input,
with the objective of study the thermal behavior of the surge arrester due to atmospheric
discharge. Finally, to evaluate the model constructed in this study, a comparison is made
between the results of the simulations and the data from the experiment done in the high
voltage laboratory of the Federal University of Campina Grande.