245-704-3615_-_Operating_Diagram_Unit_Cooling_Water_and_Hot_Water_Heating_Systems.pdf

This document is an operating diagram for Unit Cooling Water and Hot Water Heating Systems for Mary's Lake Power Plant, detailing a complex piping and valve configuration for generator cooling and heating systems. The schematic comprehensively maps out multiple water systems, including generator air cooler water supply, hot water heating systems, service water systems, and fire protection water pumps. The diagram includes a detailed "Purposes of Valves" section that meticulously outlines the operational functions of various valves, such as generator air cooler water supply (CL), turbine stuffing box water supply (C3), and miscellaneous valves for temperature control, pressure relief, and check mechanisms. The technical drawing uses standard engineering symbols and provides a comprehensive view of the interconnected water systems, their flow paths, control points, and operational relationships within the power plant's infrastructure.