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Emergency MPT Replacement

Barnhart received an emergency call from a nuclear station in the Midwest on a Saturday night about a failed Main Power Transformer (MPT). This required the emergency removal of the MPT with a fully-dressed spare. The station had never executed a fully-dressed out move before. Barnhart responded immediately, sending a project management and engineering team the next morning. The team then immediately started mobilizing to the site the Barnhart crew and equipment which included a 20-line 1-1/2 wide Goldhofer PSTe, pull-up gantry system, 1,000-ton slide system, climbing jacks and bridge jumpers.

The failed MPT weighed 740,000 lbs. and its replacement weighed 1,034,000 lbs. The project involved multiple bridge jumps along the haul route to span underground interferences.

Several Barnhart teams from our network of branches assisted our Channahon, Illinois project branch in the safe and efficient completion of this project. Within one week of the Saturday night emergency phone call, Barnhart had set the fully-dressed spare MPT on the pad, and it was in operation in 15 days. Barnhart was a key contributor in assisting the station in beating their planned outage schedule of 17 days.