Millstone Power Station Unit 3 Safety Analysis Report Chapter 10: Steam and Power Conversion System MPS-3 FSAR CHAPTER 10—STEAM AND POWER CONVERSION SYSTEM Table of Contents Section Title Page 10.1 SUMMARY DESCRIPTION................................................................... 10.1-1 10.2 TURBINE-GENERATOR........................................................................ 10.2-1 10.2.1 Design Bases............................................................................................. 10.2-1 10.2.2 Description................................................................................................ 10.2-2 10.2.2.1 Turbine-Generator Equipment.................................................................. 10.2-2 10.2.2.2 Turbine Overspeed Protection .................................................................. 10.2-4 10.2.3 Turbine Integrity ....................................................................................... 10.2-5 10.2.3.1 Materials Selection ................................................................................... 10.2-6 10.2.3.2 Fracture Toughness................................................................................... 10.2-6 10.2.3.3 High Temperature Properties.................................................................... 10.2-6 10.2.3.4 Turbine Design ......................................................................................... 10.2-6 10.2.3.5 Preservice Inspection ................................................................................ 10.2-6 10.2.3.6 Inservice Inspection .................................................................................. 10.2-7 10.2.4 Evaluation ................................................................................................. 10.2-8 10.2.5 References for Section10.2 ....................................................................... 10.2-8 10.3 MAIN STEAM SYSTEM ....................................................................... 10.3-1 10.3.1 Design Bases............................................................................................. 10.3-1 10.3.2 System Description ................................................................................... 10.3-2 10.3.3 Safety Evaluation...................................................................................... 10.3-3 10.3.4 Inspection and Testing Requirements....................................................... 10.3-7 10.3.5 Secondary Side Water Chemistry ............................................................. 10.3-8 10.3.6 Main Steam and Feedwater System Materials.......................................... 10.3-9 10.3.6.1 Fracture Toughness................................................................................... 10.3-9 10.3.6.2 Materials Selection and Fabrication ......................................................... 10.3-9 10.3.7 Instrumentation Requirements................................................................ 10.3-10 10.4 OTHER FEATURES OF MAIN STEAM AND POWER CONVERSION SYSTEM........................................................................ 10.4-1 10.4.1 Main Condenser........................................................................................ 10.4-1 06/28/18 10-i Rev. 31 MPS-3 FSAR CHAPTER 10—STEAM AND POWER CONVERSION SYSTEM Table of Contents (Continued) Section Title Page 10.4.1.1 Design Bases............................................................................................. 10.4-1 10.4.1.2 System Description ................................................................................... 10.4-1 10.4.1.3 Safety Evaluation...................................................................................... 10.4-2 10.4.1.4 Tests and Inspections ................................................................................ 10.4-4 10.4.1.5 Instrumentation Requirements.................................................................. 10.4-4 10.4.2 Main Condenser Evacuation System ........................................................ 10.4-4 10.4.2.1 Design Bases............................................................................................. 10.4-4 10.4.2.2 System Description ................................................................................... 10.4-5 10.4.2.3 Safety Evaluation...................................................................................... 10.4-5 10.4.2.4 Tests and Inspections ................................................................................ 10.4-6 10.4.2.5 Instrumentation Requirements.................................................................. 10.4-6 10.4.3 Turbine Gland Sealing System ................................................................. 10.4-7 10.4.3.1 Design Bases............................................................................................. 10.4-7 10.4.3.2 System Description ................................................................................... 10.4-7 10.4.3.3 Safety Evaluation...................................................................................... 10.4-8 10.4.3.4 Tests and Inspections ................................................................................ 10.4-8 10.4.3.5 Instrumentation Requirements.................................................................. 10.4-9 10.4.4 Turbine Bypass System ............................................................................ 10.4-9 10.4.4.1 Design Basis ........................................................................................... 10.4-10 10.4.4.2 System Description ................................................................................. 10.4-10 10.4.4.3 Safety Evaluation.................................................................................... 10.4-11 10.4.4.4 Tests and Inspections .............................................................................. 10.4-11 10.4.4.5 Instrumentation Requirements................................................................ 10.4-11 10.4.5 Circulating Water and Associated Systems ............................................ 10.4-13 10.4.5.1 Design Bases........................................................................................... 10.4-14 10.4.5.2 System Description ................................................................................. 10.4-15 10.4.5.3 Safety Evaluation.................................................................................... 10.4-18 10.4.5.4 Tests and Inspections .............................................................................. 10.4-21 10.4.5.5 Instrumentation Requirements................................................................ 10.4-21 10.4.6 Condensate Polishing Demineralizer System ......................................... 10.4-26 10.4.6.1 Design Bases........................................................................................... 10.4-26 06/28/18 10-ii Rev. 31 MPS-3 FSAR CHAPTER 10—STEAM AND POWER CONVERSION SYSTEM Table of Contents (Continued) Section Title Page 10.4.6.2 System Description ................................................................................. 10.4-27 10.4.6.3 Safety Evaluation.................................................................................... 10.4-27 10.4.6.4 Tests and Inspection................................................................................ 10.4-28 10.4.6.5 Instrumentation Requirements................................................................ 10.4-28 10.4.7 Condensate and Feedwater Systems ....................................................... 10.4-29 10.4.7.1 Design Basis ........................................................................................... 10.4-29 10.4.7.2 System Description ................................................................................. 10.4-31 10.4.7.3 Safety Evaluation.................................................................................... 10.4-33 10.4.7.4 Testing and Inspection Requirements..................................................... 10.4-36 10.4.7.5 Instrumentation Requirements................................................................ 10.4-36 10.4.8 Steam Generator Blowdown System ...................................................... 10.4-41 10.4.8.1 Design Basis ........................................................................................... 10.4-41 10.4.8.2 System Description ................................................................................. 10.4-42 10.4.8.3 Safety Evaluation.................................................................................... 10.4-43 10.4.8.4 Testing and Inspection ............................................................................ 10.4-43 10.4.8.5 Instrumentation Requirements................................................................ 10.4-44 10.4.9 Auxiliary Feedwater System................................................................... 10.4-44 10.4.9.1 Design Basis ........................................................................................... 10.4-44 10.4.9.2 System Description ................................................................................. 10.4-49 10.4.9.3 Safety Evaluation.................................................................................... 10.4-52 10.4.9.4 Inspection and Testing Requirements..................................................... 10.4-54 10.4.9.5 Instrumentation Requirements...............................................................