project Specifics
Upgrading obsolete relays to safeguard coal haulage operations
Aurizon required the replacement of 66 obsolete GEC YTG14 track feeder distance protection relays with modern Micom P438 relays across its Central Queensland network. This large-scale upgrade significantly reduced operational risk for Aurizon’s critical coal haulage, delivering improved system reliability, remote monitoring, and enhanced diagnostic capabilities.
With a project value of $630,000, our team ensured a seamless transition through precise planning, validation, and execution.
About the Aurizon Network
Aurizon is Australia’s largest rail freight operator, transporting coal, iron ore, and other essential commodities across vast distances. Its Central Queensland operations are a cornerstone of Australia’s coal supply chain, moving millions of tonnes annually from regional mines to export terminals. Maintaining uninterrupted and safe rail operations is critical to supporting the mining industry and international exports.
What We Delivered
Services:
- Detailed Design
- Site Visits to Validate Drawings
- Drafting
- Construction Scope of Work
- Project Execution Plan
- SAT Procedures
- Construction Support
- As Built Drawings
Delivery Method:
- Electrical engineering consultant
Outcome
Our team successfully delivered a modernised relay system that enhanced the reliability and diagnostic capabilities of Aurizon’s protection infrastructure. The client gained confidence in system integrity through comprehensive Site Acceptance Testing and robust project execution. The solution met all operational needs within limited changeover windows, ensuring minimal disruption and strong client satisfaction.

A Welcon Project
This project was completed by our Welcon Team.
Since September 2024, Welcon Technologies has become part of SGA in a strategic move that leverages the strengths of both companies.
Welcon’s Team
