Three different motor and fan groups are active. They are independent like in two-cell towers and have a single pool. In two-cell towers, the system that operates at 50% capacity during maintenance, failure or revision can continue to operate at 67% in this type of tower structure. The decrease in motor power directly reflects on the availability of the motor, the triplet towers are directly reflected on the stock cost and water saving. According to customer request, it can be built with towers of different lengths, provided that the width remains the same.