TG201 - Steam Turbine Generator Fundamentals

2.5 days - 1.6 Continuing Education Units Awarded

This Seminar has been designed for individuals who are new to steam turbine-generator operations and maintenance. It also provides an excellent review for individuals who have been involved with steam turbine-generators, but have not received formal training.  In this Seminar we discuss the basic theory of operation and apply that theory to a discussion of components that immediately follows.  If one is to operate, maintain, or manage steam turbine generator functions then one needs to know why is works as it does, what are some of the design differences, and what is the significance of the various components.  Nozzles, blades, shells, rotors, valves; all are covered as to their function.  On the generator; frame, core, armature windings, rotor, field windings, exciter: all are covered as to their fundamental function.

Topical Outline includes: Steam Turbine Operating Principles, Component Descriptions, Steam Valves, Unit Descriptions, Intro to Operations, Turbine Auxiliary Systems, Generator Operating Principles, Generator Component Descriptions, and Generator Auxiliary Systems.

HPC’s instructional staff on this topic is significant.  The materials were developed by those who have been working on steam turbine-generators their whole career. 

OBJECTIVES
Upon successful completion of this Seminar the participant should be able to:

1. Describe the function of turbine nozzles.
2. Describe the function of turbine blades/buckets.
3. Describe the energy conversions that occur in impulse and reaction turbines and identify the components where the conversions occur.
4. Describe the function of the various steam turbine components.
5. Describe the areas where the turbine is sealed.
6. Explain how the turbine expands and why this is important.
7. Explain the function of steam turbine valves.
8. Describe full arc vs. partial arc operation.
9. Trace the flowpath for steam turbine auxiliary systems.
10. Describe the major components in steam turbine auxiliary systems.
11. Describe the three circuits that are basic to AC generators operations.
12. Describe the function of AC generator major components.
13. Trace the flowpath for generator auxiliary systems.
14. Describe the major components in generator auxiliary systems.

Seminar OUTLINE

1. Operating Principles: Fundamental Theory, Impulse and Reaction Turbines
2. Turbine Component Construction: Turbine Sections, Shells, Casings, Cylinders, HP-IP/LP, Nozzles/Diaphragms, Stationary Blades, Turbine Seals, Turbine Rotors/Spindles, Blades/Buckets, Standards/Pedestals, Bearings
3. Main/Aux. Steam Valves: Steam Chests, Main Stop/Throttle Valve, Control/Governor Valve, Reheat Valves, Auxiliary Steam Valves
4. Unit Descriptions
5. Turbine Operations: Prewarming, Starting and Loading, Full Arc Admission, Partial Arc Admission, Turbine Supervisory Instruments
6. Steam Turbine Auxiliary Systems: Lube Oil System, Shaft Sealing System, High Pressure Fluid System
7. Generator Fundamentals: The Power System, DC and AC, Power System Components, System Frequency, System Voltage, System Load Demand, System Generator Capacity
8. Generator Operating Principles: Electro-Magnetic Principles, Exciter/Field Current, Magnetic Circuit, Stator Winding Circuit, Synchronous Speeds and RPM, Losses and Cooling
9. Generator Construction: Stator, Frame, Coolers, High Voltage Bushings, Stator Core, Stator Windings, Conductor Cooling, End Shields, Generator Bearings, Rotor, Forging, Field Windings, Collector Rings & Brushes, Exciters, House Generators
10. Generator Auxiliary Systems: Gas Control System, Generator Shaft Seal System, Stator Water Cooling System, Stator Oil Cooling System

This course is scheduled at TurboCare's facilities in 2010.