Connect Group was entrusted with the full replacement of the breaker’s feed and discharge cylinder ends during a critical outage window.
To access the breaker, our team removed roof panels and structural steel from the building envelope and executed a heavy lift using a 1350T mobile crane. During the pre-shutdown phase, we proactively installed and welded internal wear liners inside both new cylinders — significantly reducing required outage time.
CGI Technical Services engineered a custom cage support beam system to temporarily secure the breaker while the cylinder ends were removed and replaced, ensuring structural stability and safe execution throughout the process.
Scope included replacement of both cylinders, ring gear and pinion replacement, temporary removal and reinstallation of the head pulley, sparge pipe handling, and complete drive train, ring gear, and trunnion alignment.
All mechanical systems were reassembled, aligned, and returned to service within the outage window.
Outcome:
✔ Engineered lift and structural access strategy
✔ Outage duration reduced through pre-work planning
✔ Precision alignment of full drive train system
✔ Safe execution of complex heavy mechanical scope
