OneLine Engineering provided complete electrical engineering and design services for the upgrading of the protection and control systems for an existing 34.5 – 8.3 kV substation. The scope of work included:
• Design of the protection relaying schemes for the transformer protection (T1 & T2), and feeder protection (GF1 – GF6), including detailed drawings required for assembly of the relay panels
• Production of all related electrical drawings including single line diagrams, AC & DC schematics, cable and termination schedules
• Equipment layout for the new relay panels in the existing control building
• Development of the upgraded stations communications and RTU system
• Design of new relay panels to replace the legacy protection relays for the existing protection systems
• Construction and commissioning assistance