Execution of the engineering, supply, construction and preoperational tests of the enlargement of a substation of 230 kV, located in the state of Zacatecas, including: supply of a three-phase autotransformer of 75/100 MVA with nominal voltages of 230/115/13.8 kV, transfer bay, relocation of reactor R1 and Auxiliary Services 13.8 kV of the tertiary, recalibration of buses in zone 115 kV and 230 kV.
