TG203 - Industrial Steam Turbine Generator Fundamentals

2 days - 1.3 Continuing Education Units Awarded

This course 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 course 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, Steam Turbine Auxiliary Systems, Intro to Turbine Controls, Generator Operating Principles, Generator Component Descriptions, and Generator Auxiliaries..

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 take place in impulse and reaction turbines and identify where the conversions occur.
4. Describe the function of various steam turbine components.
5. Describe the areas where the turbine is sealed and why.
6. Explain the function of the steam valves: SV, V1, V2.
7. Provide a fundamental description of an extraction steam turbine control system.
8. Trace the normal flow path for common steam turbine auxiliaries.
9. Describe the major components making up the steam turbine auxiliaries.
10. Describe the three circuits that are basic to AC generators operation.
11. Describe the function of AC generator major components.
12. Trace the normal flow path for common generator auxiliaries.
13. Describe the major components making up the generator auxiliaries

SEMINAR OUTLINE

1. Operating Principles: Brief Review of Thermodynamics, Fundamental Theory of Turbine Operation, Impulse and Reaction Stage
2. Turbine Component Construction: Turbine Sections, Shells, Casings, HP-LP, Nozzles/Diaphragms, Stationary Blades, Turbine Seals, Turbine Rotors, Blades/Buckets, Standards, Bearings
3. Steam Valves: Steam Chests, Main Stop Valve, Control Valve (V1), Extraction Control Valve (V2 and V3), Auxiliary Steam Valves
4. Turbine Auxiliaries: Lube Oil, Hydraulic, and Gland Seal Systems
5. Extraction Turbine Controls: 3 Laws of Steam Turbine Controls, Speed/Load Control, Extraction Pressure Control, Overspeed Protection
6. Generator Components: Stator, Rotor, Exciters, House Generators
7. AC Power Generation: Fundamentals of Generator Design, AC Power, Power Flow
8. Generator Auxiliaries: Seal Oil and Hydrogen Systems