In the midst of the controversy that the entry into operation of the first generation unit of Hidroituango whether or not next July 26on the construction site they work against the clock to meet the schedule.
There are more than 80 contractor companies and 8,353 collaborators distributed in different work fronts who seek to have the mega-work completed within the established times and with the safety and quality conditions required for this type of work.
In this order of ideas, EPM reported the arrival at the powerhouse of the runner of the first turbine, called its ‘heart’. It is an element weighing 71 tons (equivalent to 11 elephants), with a diameter of 5.1 meters and a height of 2.1 meters.
Its function, explained the company, is that of a small rotating ‘motor’ “in which the exchange of hydraulic energy (energy of water or kinetic or potential) to mechanical or rotational energy is carried out. In other words, the energy of the water is converted into mechanical energy, since when there is contact between the water and the impeller, it rotates at a synchronous speed of 180 revolutions per minute”.
Its assembly, which will last between two and four weeks, is part of the turbine-generator set, since the runner is connected by means of a shaft to the generator rotor and around it is the stator.
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The Hidroituango runners were manufactured by GE Renewable Energy in Sao Paulo, Brazil.
These two elements, rotor and stator, are also found in the powerhouse, EPM clarified.
“Starting the assembly of the first runner in Hidroituango is a technical milestone, because it marks the continuity of the assembly of the main mechanical components of the generation unit. Much of the equipment is already embedded in the concrete of the structure”, added the company.
Regarding the quality of this element, it was announced that they are made up of 15 blades, made of martensitic stainless steel, which according to EPM belongs to the series of highly alloyed steels with chrome “and is characterized by an excellent combination of mechanical properties and resistance to corrosion and cavitation”.
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Jorge Andrés Carrillo Cardoso, general manager of EPM, added that “Hidroituango already reached 87.32% construction progress at the end of last February, thanks to the considerable progress we have made in civil works and the assembly of electromechanical equipment in the house. of machines”.
MEDELLIN
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