Supply, Delivery, Installation Testing, and Commissioning of Brand New one (1)-unit 20/25 MVA Power Transformer, On-load, 67/13.2kV, Dyn1 and Accessories at Naga-Concepcion Power Substation, Brgy. Concepcion Pequeña, Naga City - Supply, Delivery, Installation Testing, and Commissioning of Brand New one (1)-unit 20/25 MVA Power Transformer, On-load, 67/13.2kV, Dyn1 and Accessories at Naga-Concepcion Power Substation, Brgy. Concepcion Pequeña, Naga City