CT327 – Frame 7EA / 7FA Gas Turbine Operations And Alarm Response

CT327 – Frame 7EA / 7FA Gas Turbine Operations And Alarm Response

4.5 days - 32 PDH Credits Awarded



This course is intended to have a positive impact upon gas turbine operator decision-making. The course specifically targets Control Room Operators, wannabe CRO, and Shift Supervisors. Engineers will benefit as well. Normal operations are discussed to include startup, on-line operations, and shutdown. Alarm conditions are discussed with the following items in mind: implications of the alarm occurrence (why/how is the unit at risk), probable causes, and actions to be taken. There are significant differences between the 7EA and 7FA as well as significant similarities. Each topic will be discussed starting with an overview of the component / system. Where there are significant differences then both the 7EA and 7FA will be discussed. When this course is taught on-site the emphasis will be on that unit located at that site.

Course Dates / Location / Fee

See www.TurbineGeneratorTraining.com for detail on the course dates / locations / and registration fees. HPC’s 3-4-2 policy applies: Sign up 3 for the same course/date and pay for only 2! For those participants who “Training Savings Program” members, your account balance will be reduced by 60% of the quoted open-enrollment price (yes that is 40% off for paying for volume in advance). HPC Technical Services reserves the right to cancel any course/seminar within 10-working days of the scheduled date. Fees are 100% refunded or credited to another Seminar (clients' choice) if HPC should cancel any Seminar. HPC is not responsible for non-refundable airline tickets or other travel expenses under any circumstance.


Upon completion of this course, the participant will be able to:
  1. Describe the relationship of the various turbine components and how they may be at risk during operations.
  2. Describe the different fuel systems used in gas turbine operations.
  3. For each of the gas turbine auxiliary systems describe the systems' purpose, function of major components making up the system, normal operations, and abnormal conditions.
    1. Inlet and Exhaust Air
    2. Cooling and Sealing Air
    3. Lube Oil System
    4. Hydraulics
    5. Trip System
    6. Fuel Gas
    7. Liquid Fuel
    8. Fire Protection
    9. Water Wash
    10. Cooling Water
    11. Starting Means
  4. Given a gas turbine control system block diagram, sequence the turbine through start-up preparation, a start up, load changes, normal shutdown, and emergency conditions.
  5. Demonstrate the ability to navigate the operating screens to sufficiently to trace an alarm drop.
  6. Given an alarm, describe how the unit may be at risk.
  7. Given an alarm, describe what are the most proper actions to take (short- and long-term).

Course Outline

Day One

  • Review of Gas Turbine Theory
  • Review of the 7EA & 7FA Gas Turbine Construction & Operating Principles: Air Inlet Guide Vane & Casing, Compressor Stator, Compressor Rotor, Combustion Section, Turbine Stator, Turbine Rotor, Exhaust Section, Bearings

Day Two

  • Auxiliary Systems (incl. purpose, P&IDs, Device Summary, start-up, normal operation, alarms & alarm response): Inlet and Exhaust Air, Cooling and Sealing Air, Lube Oil System, Hydraulics, Trip System, Fuel Gas

Day Three

  • Auxiliary Systems cont’d: Liquid Fuel, Starting Means, Fire Protection, Water Wash, Cooling Water
  • Preparation for Start Up
  • Start Up Sequencing: Overview, Functional Logic, Alarms and Response

Day Four

  • Speed Control: Overview, Functional Logic, Alarms and Response
  • Temperature Control: Overview, Functional Logic, Alarms and Response, Combustion Monitor
  • NOx: Overview, Functional Logic, Alarms and Response

Day Five

  • Control Valve Positioning: Servo Mechanisms, Gas Control Valve, Liquid Control Valve, Fuel Splitter, and DLN Splitter; Functional Logic, Alarms and Response
  • Protective Systems: L4, Overspeed Trip, Emergency Overspeed Trip, Overtemperature Trip, Vibration, 20FG/20FL
  • Certification Examination for those who are interested.

What you will receive

  1. 1 copy of HPC Technical Services' textbook, Frame7EA& 7FAGas Turbine Operations and Alarm Response, as written by Harold Parker with technical review by Sal Paloucci. It is a valuable desktop reference in addition to being able to enhance the learning process.
  2. A Certificate of Completion

Gas Turbine Operator Certification

Those who attend this course are automatically qualified to take HPC Technical Services' Certification Examination. This examination is offered at no additional expense to the participant. An 80% passing grade is required. The examination length will not exceed 2-hours. Those who complete this examination will receive a revised "certificate of completion" that recognizes this accomplishment along with two-copies of a "To Whom It May Concern" letter that states their accomplishment. (Two copies are provided, one for the participants' employer and one for the participants' personal file.) Consult HPC's website, www.TurbineGeneratorTraining.com, for detail on this certification program.

Frequently Asked Questions

  • Will HPC Technical Services bring this course to our location for our personnel only? Can the course be customized? YES, call or email Stephen Parker, Stephen@TurbineGeneratorTraining.com for a price quotation.
  • What is the cost for HPC Technical Service to deliver this course at our location? Well, of course that can vary, but generally speaking, if you're planning on having 6+ attend, when considering your T&L, it is to your advantage to perform the course at your plant (office). You gain from the customization and price.
  • Can HPC Technical Services provide "Technical Assistance" in conducting functional checkouts or troubleshooting problems? Yes we can. Call or contact Stephen Parker, Stephen@TurbineGeneratorTraining.com for our rate sheets and any further information required.

Related Courses Of Interest

  • (GE) Frame 7EA Gas Turbine Generator Maintenance class (CT521)
  • (GE) Frame 7FA Gas Turbine Generator Maintenance class (CT522)
  • Mk-V (-VI or -VIe) for Gas Turbine Operators (CT316, CT324, or CT324e)
  • Utility Generator O&M course (G401).
  • Gas Turbine Controls, CT516 for Mk-V, CT524 for Mk-VI, and CT524e for Mk-VIe.


All HPC instructors are educated ‘experts’ on the subjects they teach, with years of relevant hands-on experience (typically 20+ years), and have proven instructional skills. Brief resumes can be looked up on HPC’s website, www.TurbineGeneratorTraining.com.