Electrical Features of Smith Mountain Hydro Project, Appalachian Power Company

This paper describes a combination run-of-river and pumped storage hydro project with emphasis on automatic electrical controls. The plant is unattended and operation is fully automatic with remote control and telemetering via microwave. Motor starting is by reduced voltage, utilizing a corner delta connection on the unit transformer. Control logic diagrams are included in the paper. Electrical and mechanical protection is described.