Collett Transport, in collaboration with GE Vernova, has recently wrapped up the intricate Pathfinder Substation project. This endeavor involved the heavy transport, lifting, and final offloading, positioning, and installation of four massive 145-tonne transformers. These transformers traveled from Buckie Harbour to Pathfinder’s Blackhillock Beatrice Onshore Substation, showcasing the remarkable expertise and coordination required for such a complex operation.
The project’s success hinged on meticulous planning and execution. Each transformer, measuring a substantial 7.5 meters in length, 3 meters in width, and 4.3 meters in height, arrived at Buckie Harbour aboard a coaster vessel. Unloading these behemoths required the might of a 500-tonne TEREX DEMAG TC3200 crane. Two transformers were initially stored on stools at the harbor, while the other two were prepped on trailers for the journey ahead.
Transportation was no small feat. Each transformer was loaded onto modular 12-axle flat top trailers, and with the guidance of a police escort and Collett’s own pilot car escort fleet, they made their way to the substation. To ensure efficiency and safety, the transformers were transported in pairs, traveling in convoy.
Upon reaching the site, the complexity of the operation ramped up. The transformers were transferred onto 8-axle Self Propelled Trailers (SPTs) to navigate the tight site access. Maneuvering these enormous units along the site roads, the trailers had to be precisely aligned with their respective plinths. This is where Collett’s Heavy Lift Team shone, using pre-arranged jacking and skidding equipment to jack and skate each transformer into position on their respective bunds, employing precise positioning plates for final adjustments. This process was meticulously repeated for each of the remaining transformers.
Collett’s role extended beyond mere transportation. Their expertise encompassed comprehensive engineering and preliminary works. Detailed engineering drawings covered transport logistics, jacking and skidding procedures, and ground pressure calculations. The Collett Projects Department took charge of the preliminary works, which included an exhaustive route survey, permit applications, tree trimming, and cable height surveys. Notably, a temporary bridge over a culvert was constructed using steel plates, in coordination with Moray Council, to facilitate the transport.
Thierry Van Cayseele, Senior Logistics Manager at GE Vernova, lauded Collett’s dedication and adaptability. He noted, “The transport and installation of the four transformers was a very challenging operation due to the unpredictable weather causing a delay of the vessel, requiring us to review the schedule every day. Nevertheless, Collett staff showed great resilience and understanding. Thanks to their adaptability and professionalism, the Transformers were successfully and safely delivered to the substation site. Congratulations to all the team!”.
