i am new member chosen power field, working for GMR 388.5 MW combined cycle power plant, started my career. I need field operator and control room engineer responsibilities, operation procedures of GE9FA machine.

hope help.

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Welcome to the industry! And welcome to control.com.

Any plant should have its own written operating procedures for the plant so that all personnel operate the plant in the same way. And those procedures define how the equipment in that plant is to be operated safely and efficiently.

The operator responsibilities vary from plant to plant, as well. Some operators just stay in the Control Room (sometimes called "inside operators") responding to alarms ("alarm managers") and changing load, starting and stopping the units. Some operators roam into and out of the Control Room and are dispatched by the Control Room operators to problem areas in the plant or to execute procedures at local stations in the plant (sometimes called "outside operators"). They take gauge readings, look for leaks, they are the "eyes and ears" of the inside operators, and in many cases can spot a problem before it becomes an emergency.

Taking gauge readings may seem boring, and if all that's done is to record the gauge reading on a log sheet, and nothing more, then it is very boring. But, every reading should be compared to previous readings, to spot trends such as increasing temperatures or decreasing pressures which would indicate some problem (insufficient cooling, or plugged filters/strainers, for example) which can be handled before some alarm is annunciated or a shutdown or trip is initiated.

Operating a plant involves understanding all of the systems of the plant. It means developing an understanding of all the P&IDs of the plant, knowing where all of the control devices (valves, transmitters, filters, pressure regulators, etc.) are located. The best operators have been sent out to "trace" systems, producing their own schematic drawings of each system which are then compared to the P&IDs. In this way, the operators have actually been out and about and have identified each device and know which way fluids flow in which pipes, and where the isolation valves are for emergency use, or for isolation during a maintenance outage. Most people don't like doing this when they are told they have to do it, but they will admit later that it was the best thing they ever did for their understanding of the plant and for their career.

I don't think GE or any of its turbine packagers (including GE Energy Products-Europe) has really produced a comprehensive operations guide for 9FA turbines. But, that would be the basis for any site-specific operating procedures anyway, because the turbine-generator is only one part of a combined-cycle power plant, and its operation has to be coordinated with the other major components of the plant (the "boiler" (HRSG), the steam turbine-generator, etc.).

But, if you have specific questions about something related to the turbine, we can try to help you. But, remember, your site is likely not the same as any other site in the world. The turbine is very similar, but the auxiliaries and the control system are different. You haven't told us what kind of control system, what kind of combustion system, what kind of HMI you have at the plant for the turbine. Some plants don't operate the turbine from the GE HMIs; they send commands to the turbine control system from the plant DCS and just use the GE HMIs for monitoring and troubleshooting.

So, when you post again with questions, take a couple of minutes and tell us about your site. The more information you can provide the better the response you will likely receive. And here at control.com, we encourage people to use the 'Search' feature. Whenever you use any search feature or search engine, it's helpful to use different search terms in multiple searches, because people don't always use consistent words and terms to describe the same thing. So, if your first search isn't successful, try another with a different search term or words, and even if you get hits try another couple of searches with slightly different terms. You'll be surprised at how much information you can find doing this.

Lastly, you should find here at control.com that for most of the GE-design heavy duty gas turbine-related threads there is feedback provided by the originator. That feedback is the most valuable part of the thread; it lets others know if the information provided was valuable or wrong or only slightly helpful. It lets people know what was found to be the problem, or if the information was helpful. It's not only useful for others who find the information using the search feature, it's helpful to the people providing the responses. So, we like to say, "Feedback is the most important contribution!"(c). So, if you can take a few minutes to write a question, please find a few minutes to provide some feedback, even if the information wasn't appropriate or helpful.

 

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