Electrical and mechanical design features of the 615 MVA generators for Grand Coulee Dam

The design and construction of the Grand Coulee third power plant and its electromechanical equipment represent and unprecedented advancement in the field of hydroelectric power production. Without a doubt; a number of "firsts" and records will be achieved in its construction. This paper describes the new technology and concepts associated with the design and operation of the 615 MVA generators for this power plant.