OneLine Engineering provided complete electrical engineering and design services for a 115 kV – 34.5 kV collector substation for a 50 MW solar farm. The scope of work included:
• Design of the protection relaying schemes for the line protection, transformer protection, teleprotection, capacitor bank protection and feeder protection, including the detailed drawings required for assembly of the relay panels
• Production of all related electrical drawings including single line diagrams, AC & DC schematics, trip logic diagrams, cable and termination schedules, grounding and lighting layouts
• Design of the P&C control building and the GIS switchgear building for the substation
• Design of the communications network for the substations
• Protection relay coordination study and relay settings report
• RTU communications integration with IESO/HONI
• Construction and commissioning assistance