Concepts and Features of the Automated Unite Control System for the Raccoon Mountain Pumped-Storage Plant

This paper describes the man-machine interface requirements, the controlled components, the operating processes, and operating restraints which apply to the Raccoon Mountain Pumped-Storage Plant. It shows how the evaluation of these factors led to a definition of the degree of automation to be achieved and, to a large extent, to the choice of controlling mechanisms to be utilized. Finally, it describes, both in concept and in function, the resulting system. which controls four of the world's largest reversible pump-turbines.