TG323e – (Ge) Mk-VIe Steam Turbine Controls For Operators

TG323e – (Ge) Mk-VIe Steam Turbine Controls For Operators

4.5 days - 32 PDH Credits Awarded



The course combines good overall operational practices with specifics of the Mk-VI control system. The Mk-VI portion of the course is adjusted to specifically deal with level required by Operations personnel.  To operate a machine safely and for the long-term, we need to have a good understanding of the basic theory, we need to know how different components might be placed at risk, we need to understand how the Mk-VI control system “thinks”, how the Mk-VI system files are utilized to an operators’ advantage, we need to know how and when the protective systems should react, and we need to know the importance of proper operation of the auxiliary systems.   With respect to the protective systems, we need to understand the symptoms of some of the common problems, what actions the operator should (or should not) take, what actions protective systems should take, and when.  This course discusses all of this in a generic fashion (that is not necessary specific to any given machine) – an on-site course content can be adjusted to deal with the specific application.  A good big-picture is required to become a “skilled operator” and this course takes us down that path. Topical Outline includes:  Review of Steam Turbine Theory, Review of Steam Turbine Construction & Operating Principles, Introduction to Mk-VIArchitecture, Use of Mk-VI Documentation, How to Use Toolbox Software to Read Logic Diagrams, Use of Mk-VI to Troubleshoot Alarm Drops, Mk-VI Interaction with Auxiliary Systems, Start Up Sequencing, Speed/Load Control, Servo Valve Drive Systems, Overspeed, Protective Circuits, Abnormal Conditions and Response.  (For BWR participants we add Pressure and Bypass Valve Control I/O and Algorithms.)

What you will receive

  1. 1 copy of HPC Technical Services' textbook, (GE) Mk-VI Steam Turbine Controls for Operators, drafted by Harold Parker.
  2. A Certificate of Completion with 31 PDH awarded.


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. Given an alarm, describe the alarm source, probable causes and the corrective actions.
  3. Demonstrate an understanding of the concepts of steam turbine controls; speed, load and pressure control.
  4. Identify and describe the purpose of major hardware devices found in the Mk-VI system.
  5. Describe how Mk-VI operating screens interact with major turbine components.
  6. Demonstrate the ability to use Toolbox Software to access data that is pertinent to the operator.
  7. Demonstrate the ability to trace steam turbine specific control signals, using the “Toolbox” software.
  8. Demonstrate the ability to troubleshoot an equipment alarm from the Mk-VI panel to the field device.
  9. Demonstrate the ability (or knowledge -- based upon equipment availability) to more efficiently use the Mk-VI screens for evaluating systems operation.
  10. Demonstrate an understanding of how a trip signal is derived and applied.
  11. Demonstrate an understanding of the protective systems’ purpose, operation and test functions.
  12. Demonstrate knowledge necessary to implement OEM recommended on-line and off-line tests.

Frequently asked questions

  • Will HPC Technical Services bring this course to our location for our personnel only? YES, call or email Stephen Parker, for a price quotation.
  • Will HPC Technical Services customize the presentation at our site to suit our particular needs?
  • Is HPC Technical Services' textbook available for purchase as a reference document?
  • 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 likely to be 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, for our rate sheets and any further information required.

Course Topical Outline


  • Introduction
  • Review of Steam Turbine Operational Fundamentals
  • Mk-VI Blockware Concepts and Hardware:  “MENGs, BENGs and Other Things”


  • Mk-VI Documentation:  Control Specs, Control Files, Inputs/Outputs
  • Navigating Mk-VI Using the Toolbox Software
  • Troubleshooting an Alarm Drop using Toolbox Software and related control files
  • Steam Turbine Control Concepts with Use of Mk-VI Operating Screens and Toolbox Software


  • Turbine Auxiliaries and Alarm Response with Use of Mk-VI Operating Screens and Toolbox Software
  • Turbine Speed/Load Control with Use of Mk-VI


  • Valve Positioning: Hydraulic Actuation, Trip Oil, Testing
  • Protection Systems


  • Troubleshooting Mk-VI Process (Turbine and Auxiliaries) Alarms
  • Examination (if applicable)