Brazil is one of the 10 largest energy producers in the world, it has an extensive energy
grid connected through the National Interconnected System (SIN). Despite the extensive power
lines that cross the country, the northern region of the country has few transmission lines and,
in cases of emergency, it takes a long time and maintenance to reactivate a substation. In this
sense, it is possible that states in the region face calamities caused by electrical problems, as
happened in the state of Amapá in 2020, leaving the state with electricity through a rotation for
22 days. Therefore, the present work aims to study the recovery time of a substation in case of
outbreaks that damage its structure and cause blackout in the region served. To calculate this
time, important cities in Tocantins, such as Paraíso do Tocantins, were taken into account, as
well as cities further away from the capital Palmas, such as Bielândia. In addition to the travel
time of the maintenance team and a mobile substation, the type of road pavement and general
conditions of the road were taken into account. Finally, the possibility of each substation having
a spare transformer is also encouraged, which would make the recovery time shorter, the repair
time could be extended, so that the maintenance team could carry out the repairs calmly and
not harm the region served. However, this makes the operation of the concessionaire more
expensive, and often financially and operationally unfeasible.
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