LNG Turbine Control — GE PACSystems RX3i Fleet Deployment

Overview

SW7FT was engaged to engineer the automation and control solution for a fleet of natural gas turbines deployed in LNG operations, each unit generating approximately 0.3 MW. The challenge was not programming a single controller — it was designing a scalable, maintainable, and reliable control architecture deployable consistently across more than 60 individual turbine units.

The solution required deep expertise in the GE PACSystems RX3i platform and the operational realities of LNG turbine management — startup sequencing, fuel control, load management, protection logic, and communications infrastructure to tie an entire fleet together under a single SCADA umbrella.

What we delivered

• Standardized RX3i control architecture replicable across the full turbine fleet, significantly reducing commissioning time per unit
• Full ladder logic and structured text in Proficy Machine Edition for startup, load management, fuel control, and protection logic
• Safe shutdown and emergency trip procedures with fault detection and alarm management fleet-wide
• Redundant communication infrastructure for live status, alarms, and performance data to central facility SCADA
• Single-pane-of-glass SCADA visibility for operators across all 60+ turbine units from one control room
• Complete as-built documentation, FAT/SAT test procedures, and operator training materials

Result

This project demonstrated SW7FT's ability to operate at scale — engineering a solution once, correctly, and deploying it reliably across an entire fleet in one of Canada's most demanding industrial environments.