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Steam Turbine Control and Operation

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

Available in English

55 Minutes

When you complete this lesson, you will be able describe the basic operation of the valves that control the speed and operation of a typical steam turbine.