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Turbine

"Introduction to Steam Turbine and Systems • Steam Turbine Control Valves • Steam Turbine Main Stop Valves • Steam Turbine Reheat Stop/Intercept Valves • Turbine Steam Flow Path • Turbine Extraction Valves • Main Condenser Vacuum System " · Steam Seal System · Exhaust Hood System · Rotor Lift · MHC/EHC System · Turbine Lube Oil System · Turbine Control Systems · Turbine Start Up and Shut Down and Supervisory Instrumentation · Turbine Start Up and Shut Down Practices · Operator Controllable Losses · Turbine Metal Temperatures · Response to Water Induction · Turbine Vibration (Causes) and Mitigating Actions · Understanding Differential Expansion · Eccentricity, Speed & Valve Position · Overspeed Protection · Minimum Load Operation Generator Equipment, Operations, and Excitation · Main Generator Overview · Hydrogen Gas Cooling System · Seal Oil System · Step-up/Step down Transformers · Excitation System · Generator Operation (Generator Circuit Breakers & Protection) · Isolated Phase Bus · Synchronizing to Grid · Synch Check Relays · Generator Motorization

Steam Turbine & Generator

Training Course

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"MODULE 1 – Steam Turbine Design, Failure Modes, and Advanced Troubleshooting Industry failure statistics-locating the areas of highest risk • Steam turbine design features – key features for your unit and technology advancements • Selecting the right unit – design, selection, sizing and flexibility" Common failure modes for steam turbines –explained, impacted components, how to manage and impact of flexible operations on each failure mode High Cycle Fatigue Low Cycle Fatigue Stress Corrosion Cracking Solid Particle Erosion Water Droplet Erosion Creep and Embrittlement Foreign Object Damage • Advanced Troubleshooting – detecting and mitigating before manifesting into a forced outage • Turbine vibration – unlocking the secrets of rotor lateral and torsional vibration, balancing • Nondestructive testing – most effective nondestructive inspections to detect known failure modes • OEM Technical Advisories/Service Bulletins – management and integration into outage scopes MODULE 2 – Steam Turbine Performance and Optimization (ASME PTC 6) Understanding the Code and how to complete a test • Typical findings – cycle isolation (leaking drains, bleed valves, etc.), performance degradation • How to monitor your plant and track degradation over time and compare to industry norms • “No-brainers” to regain lost capacity – upgraded sealing technologies, blade path repairs and smoothing • Turbine operational audits – how to identify and avoid common operational pitfalls • Understanding correction curves to compare to the original unit design point • Condenser performance and how to optimize • Options for retrofitting and upgrades to improve unit performance and heat rate MODULE 3 – Steam Turbine Operations and Maintenance • Impact of renewable energy and gas prices on steam turbine assets Ultra-Minimum Load Two-Shift Cycling • Steam turbine rotor retrofits – key considerations, performance benefits, technology enhancements • Emergent issues on combined-cycle steam turbines – unplanned findings early in unit life on both rotor and casings • Strategies to safely reduce cold start times – benefits of steam seal preheat and modified hold speeds/times • Material sampling and life extension assessments – fix only what is broken • Targeted outage repairs – how to get back online with as little spend, time and risk as possible • Repair options and considerations – casing cracking, stress corrosion cracking, rotor bow, solid particle erosion and water droplet erosion, foreign object damage • Outage planning and risk assessments for key turbine hardware – how to optimize outage intervals based on current hardware condition • Unit Health Monitoring – What to monitor and common findings • Steam Turbine Maintenance – Major maintenance, routine and preventative maintenance, oil analysis Practical Case Studies • Blade failures and repair strategies – high-cycle fatigue, low-cycle fatigue, aeroelastic vibration, water droplet erosion and solid particle erosion • Stress corrosion cracking and repair options Casing cracking • Rotor shaft cracking • Rotor bow repairs • Generator boresonic inspection interval extensions • Remaining life studies – creep, low-cycle fatigue, stress corrosion cracking

Steam Turbine Design, Failure Modes, Operations and Maintenance

Training Course

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MODULE 1 – Steam Turbine Failure Modes, and Advanced Troubleshooting Industry failure statistics-locating the areas of highest risk Common failure modes for steam turbines –explained, impacted components, how to manage and impactflexible operations on each failure mode High Cycle Fatigue Low Cycle Fatigue Stress Corrosion Cracking Erosion – Solid Particle and Water Droplet Creep and Embrittlement Overspeed Vibration Generator electrical faults Generator mechanical failures • Advanced Troubleshooting – detecting and mitigating before manifesting into a forced outage • Turbine vibration – unlocking the secrets of rotor lateral and torsional vibration, balancing • Nondestructive testing – most effective nondestructive inspections to detect known failure modes • Repair options and considerations – casing cracking, stress corrosion cracking, rotor bow, solid particle MODULE 2 – Performing a Root Cause Analysis with Case Studies • Structure root cause analysis process – Kepner Tregoe • Important evidence to collect and review • Important operational data to review and signs of issues • Metallurgical testing and cracking signatures based on type • Determining most probable root causes • Actions to prevent future recurrences • Practical Root Cause Analysis Case Studies Practical Case Studies • Blade failures and repair strategies – high-cycle fatigue, low-cycle fatigue, aeroelastic vibration, water droplet erosion and solid particle erosion • Stress corrosion cracking and repair options • Casing cracking • Rotor shaft cracking • Overspeed case studies • Generator ground faults • Customized case studies based off client interest

Steam Turbine Failure Modes and Root Cause Analysis

Training Course

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