TG501 - (GE) Turbine Supervisory Instruments

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3 days - 1.9 Continuing Education Units Awarded


Course Dates Download Brochure PDF
USD 2,195.00


This Seminar provides a working knowledge of each parameter that is monitored by the GE Turbine Supervisory Instrumentation (TSI). The function and location of each detector along with an operational description of its amplifier is discussed. With this knowledge, the participant has the information needed to reliably calibrate, maintain, and troubleshoot the TSI. Additionally, this information enables the participant to qualify the accuracy of the TSI indications to an operator; thereby providing confidence to the operator when important decisions have to be made.

WHO SHOULD ATTEND:
Technicians, Electricians, and/or Engineers who have a responsibility to maintain this equipment at any fossil or nuclear turbine generator installation. Turbine experience is desirable but not necessary.

Seminar OBJECTIVES:
  1. State the purpose and function of the Turbine Supervisory Instrumentation.
  2. List the turbine parameters that are measured by the Turbine Supervisory Instrumentation.
  3. State the purpose and give the general description of the information contained in the Manufacturing Instructions, Internal Connection Diagrams, External Connection Diagrams, and Elementaries.
  4. Explain how the need for Turbine Supervisory Instrumentation is affected by the construction of the turbine, turbine valves and auxiliary systems.
  5. For each detector listed below, describe the function and location of the detector, describe the TSI amplifier, how the signal is modified and outputted.
    1. Vibration
    2. Vibration Phase Angle
    3. Shell Expansion
    4. Rotor Expansion
    5. Differential Expansion
    6. Eccentricity
    7. Speed
    8. Valve Position
    9. Thermocouples - RTDs
  6. Demonstrate the knowledge necessary to calibrate each of the circuits listed above.
Seminar OUTLINE:
  1. Overview
    1. Block Diagram
    2. Principles of Operation
  2. TSI Interpretation for Operators
    1. Bowed Rotors
    2. Eccentricity Detector
    3. Good/Bad Eccentricity
    4. Speed
    5. Coastdown Times
    6. Abnormal Coastdowns
    7. Valve Position Recorder
    8. Vibration Recorders
      1. Equipment
      2. Critical Speeds
      3. Packing Rubs
      4. Thermal Sensitivity
      5. Mechanical Unbalance
      6. Misalignment
    9. Shell Expansion
    10. Differential Expansion
    11. Rotor Long
    12. Rotor Short
    13. Rotor Expansion
    14. Steam and Metal Thermocouples
  3. Vibration Circuits
    1. Vibration Detector Probe
    2. Phase Reference Generator
    3. Probe Mounting
    4. Vibration Channel
    5. Vibration Amplifier
    6. Vibration Phase Angle Boards
    7. Setting Alarm and Trip Set points
    8. Calibration
  4. Eccentricity
    1. Eccentricity Detector
    2. Probe Mounting
    3. Eccentricity AC Amplifier
    4. Peak to Peak Amplifier
    5. Balance Adjustments
    6. Checking and Adjusting Zero
    7. Response Test
  5. Speed and Valve Position
    1. Hardware
    2. Speed Amplifier
    3. CV Position Amplifier Board
    4. Checking and Adjusting Zero
    5. Span Adjustment
  6. Differential Expansion
    1. Detector
    2. Detector Assembly
    3. Amplifier Board
    4. Calibration
  7. Shell Expansion
    1. Detector
    2. Detector Assembly
    3. Amplifier Board
    4. Calibration
  8. Alarms and Trips
    1. Multi Channel Alarm Board
    2. High / Low Alarm Board
    3. Trip / Low Alarm Board
    4. Calibration
  9. Power Supplies and Test Panel
    1. Circuit Description
    2. Calibration