Brazil is the largest producer of sugarcane, which is a versatile and extremely important to the country's economy. After all, it is through sugarcane that various by-products arise, such as sugar, ethanol, filter cake and bagasse, which is currently widely used for energy production.
For this transformation to take place, it is necessary for the sugarcane to go through industrial processes within a plant, and WEG offers the widest range of solutions to serve this market.
Among the processes for the extration of sugarcane juice is the defibrator that breaks the structure of the sugarcane before moving on to the grinding stage. To ensure that this equipment operates with a high level of performance and resistance, it is necessary to integrate it with efficient and reliable electric motors.
Working with WEG solutions for years, Viralcool, a company that produces sugar, ethanol, energy and yeast, reinforced its partnership with the company with another reliable choice, this time to activate the crusher at its units located in Pitangueiras/SP and Castilho/SP.
Recently, the group's factories were awarded with two 6,000 hp, 6-pole, 13,800 V, three-phase wound-rotor induction motors from the Master line, equipped with a control system for automatic brush lifting.
The differential of these motors is that the brushes in charge of connecting a rheostat with the rotor winding, are in contact with the slip rings only during motor start-up, thus preserving the assembly during continuous operation, avoiding brush and ring wear. Once the motor is started with the addition of external resistance across the rheostat, the starting torque is increased and the starting current reduces significantly, making starting much smoother for current is significantly reduced, making starting much smoother for the electrical and allowing starting more diverse applications with high inertia or high torques.
WEG wound rotor induction motors automatic brush lift control system will guarantee greater process reliability, as well as less impact on the plant's electrical system during start-up and operation.