CT567 - (GE) Frame 5, 6 & 7 Gas Turbine Maintenance

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4.5 days - 2.9 Continuing Education Units Awarded


Course Dates Download Brochure PDF
USD 3,295.00



This 4.5 day course was developed to improve the effectiveness of maintenance activities associated with the GE Frame 5, 6 & 7 gas turbines.  First we need to learn to properly identify all the major components and systems.  An overview of the identification of this equipment is offered in advance of the more detailed lectures to follow.   Next, we need to learn to better plan and implement gas turbine maintenance outages.  Planning, safety, procedures and considerations regarding replace/reuse/repair decision-making are very important topics covered.  We examine the most common causes of gas path damage and the impact upon efficiency, reliability and availability.  Related topics include clearance data taking, NDE, bearing inspections, and alignment issues.  Combustion, hot gas path and major inspections are discussed as they apply to each of the individual frame types.

A topical outline includes: Overview of Gas Turbine Fundamentals (a chance to ask basic questions), Construction Principles (including differences between Frame types), Maintenance Preparation and Planning, Combustion Section Inspection (for each frame type), Turbine Inspection (for each frame type), Major Inspection (for each frame type).
This course has been specifically designed for plant personnel who are involved in safely and effectively maintaining these GE Frame 5, 6 &7 gas turbines.

OBJECTIVES:
Upon successful completion of this course the participant should be able to:
  1. Describe the major components and systems associated with each of the selected gas turbines.
  2. Describe differences between a hot gas path inspection, turbine inspection, and major inspection.
  3. Describe the major considerations when making a replace/reuse/repair decision.
  4. Describe the procedures necessary for the safe and effective disassembly and reassembly of gas turbine components.
  5. Describe the disassembly and reassembly of the major fuel valves.
  6. List the most common causes of gas path damage and their possible affects upon future operation.
  7. Describe most common causes gas path defects and their impact upon turbine efficiency and reliability.
  8. Describe the type and purpose of clearance and alignment measurements commonly taken during the disassembly and reassembly of a gas turbine unit.
  9. Describe the measuring instruments used to determine gas turbine component clearances.
  10. List and describe the various non-destructive examinations performed during disassembly of the gas turbine.
  11. Describe the common procedures for cleaning and inspecting gas turbine components.
  12. Describe the criteria used to evaluate gas turbine component defects.
  13. Describe the common repair methods for repair of gas turbine components.
  14. Describe the common types and operation of journal and thrust bearings.
  15. Describe the common causes of bearing damage.
  16. Describe the measurements required to determine oil clearances.
  17. Describe common bearing inspection and repair procedures.
  18. Describe the considerations to be taken into account when evaluating alignment of gas turbine components.
COURSE OUTLINE
  1. Overview of Gas Turbine Functions
  2. Gas Turbine Construction
    1. Turbine Function
      1. Overall
      2. Frame 5
      3. Frame 6
      4. Frame 7
    2. Component Description
  3. Maintenance Preparation & Planning
    1. Periodic Inspections
    2. Running Inspections
    3. Combustion Section Inspection
    4. Turbine Inspection
    5. Major Inspection
    6. Documentation
    7. Scheduling
  4. Combustion Section Inspection (Frame 5, 6 & 7)
    1. Accessibility
    2. Parts Identification
    3. Ignition and Flame Detection
    4. Combustion Components
    5. Borescope Inspection
    6. Reassembly
  5. Turbine Inspection (Frame 5, 6 & 7)
    1. Accessibility
    2. Turbine Shell Disassembly
    3. Nozzle Disassembly
    4. Inspection
    5. Reassembly
  6. Major Inspection (Frame 5, 6 & 7)
    1. Accessibility
    2. Disassembly
    3. Bearings
    4. Rotor
    5. Compressor Stator
    6. Reassembly