Electrical Design Aspects of Muddy Run Pumped Storage Plant

A general description is given of the physical plant and electrical system and a rather detailed description of the automatic controls of the Muddy Run pumped storage hydro plant. Conventional controls are used for generating and spin modes and modifications to these controls are made for the pumping mode. In pump mode operation the generator-motors (G-M) are started as induction motors on half voltage and are transferred to full voltage after synchronizing. The design includes remote automatic operation utilizing conventional supervisory control equipment over microwave channels. A digital computer is used to economically load the eight G-Ms.