bill of materials , Circuit diagrams, Technical risk assessment, FAT SAT of primary secondary equipment, Core sheets, E3, Substation layouts, Power transformers, RFQs, rtu, Technical data sheets verification, SCS IO Schedule, Wiring Termination diagrams, Disconnectors, SCADA, CAD design tools, Protection principle SLD Schematics, Vendor Offer Evaluations, Instrument transformers, Voltage drop calculation, Cable Schedule, Earthing switches, Auxiliary Power System design, Tele protection, Cable block diagram, Relay configuration