OneLine Engineering provided complete electrical engineering and design services for the upgrading of the protection and control systems for an existing 115 kV-34.5 kV transformer station. The scope of work included:
• Design of the protection relaying schemes for the line protection, transformer protection, and bus protection, including 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
• 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
• Revision to existing drawings as required
• Construction and commissioning assistance