Steam Turbine Control and Operation (1.5 CEHs)

Learning objectives

• Identify the purpose of the main steam stop valves
• Identify how main steam stop valves affect a unit’s operation in Bulk Electric System (BES) emergency operations
• Identify how turbine speed control affects a unit’s ability to support normal, contingency, and emergency BES operations
• Identify the purpose of the turbine governor and control valves
• Identify the difference between reheat and intercept valves
• Identify how turbine valves are manipulated by Automatic Generation Control (AGC) systems using Area Control Error (ACE) data
• Recognize what happens during a turbine trip
• Recall the basic operation of a flyweight governor control system
• Identify the difference between full arc admission and partial arc admission
• Identify common steam turbine ramp rates
• Identify steam turbine viability as an option in normal, contingency and emergency operations

Course overview