Of the millions of rotating electrical machines sold each year, the majority are assembled in the ideal conditions of the maker's factory and shipped to the customer in one unit. At the large end of the range, however, a size is reached when transport and site handling limitations prevent this. It then becomes necessary either to modify the design of components or to assemble them on site. The authors describe the special problems that arose at site with two projects, Dinorwig, and JET where the option to build at site was chosen, and those that still arose with the QE2 refit when the ideal design of propulsion motor was modified to produce shippable elements.
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