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Maythem, I believe you are suffering from a common belief that gas turbine control systems are always measuring and optimizing air/fuel (or fuel/air) ratios at all times during all phases of operation, and that's just not true. Again, there are ranges of air/fuel (fuel/air) mixtures which...

I don't have any experience with the exact equipment you are working on, but this may help to point you in the proper direction. If the three gen-sets are all connected to a common bus without any transformer/impedance between them then the problem is likely with the excitation ("AVR") system...

>To be competitive by reducing the startup time for >start-ups in real time, the toner unit is the critical path. >Reducing this time is gained in competitiveness. I completely agree--the toner unit is the key. Always use the OEM's toner unit, unless a third-party toner unit offers a...

Davidmcc, Do you belong to the Frame 6 Users Group? I would think you would have the best chance of finding such drawings from that group. If I recall correctly, those were EGT-packaged units, and the generators were Alsthom or some other non-GE vendor (perhaps Linz (sp?)). It would...

LK Fai, You say you borescoped the unit last year--but you didn't say how long the unit had been in this peaking mode of service before the borescope inspection.... If the turbine was running and hot when this happened and cold CO2 came into contact with the compressor casing, this could...

Kataeb, When did this problem start? Immediately upon initial power-up/commissioning? Or, just recently? If the problem started just recently, what is the newest load (motor, computer, refrigerator, microwave, etc.) to be added to the system? Was there a lightning strike/electrical...

Sadiya, >As per the literature in GE manuals, the generator breaker >WILL NOT trip on Reverse Power Trip Signal if the MW >Transducer is in Faulty Condition. Specifically, which GE manual did you read this in? Please tell us the GE publication number and section, and please type the...

Hello, This is (primarily) a controls-related forum. To the extent that mechanical field devices and instruments are part and parcel of the control system we occasionally engage in discussions about mechanical issues--but this one is far outside the scope of control system-related field...

balamurugan1983, The liquid fuel recirculation system, its components and its operating philosophy/sequencing is an emerging process and technology. As such, nearly every one that is sold is a one-off in that as new things are learned from the operating experience of previous systems new...

AhmedWaleed, All of these questions have been asked and answered several times on control.com. All of the past threads are stored in the 'Archives' and can be accessed using the cleverly-hidden 'Search' feature at the far right of every Menu bar in the desktop version of control.com. (It's...

amritanshup, Here's a link to a website about power factor, and there's a webpage for PF Capacitor, which you should find useful: http://www.the-power-factor-site.com/Powerfactorcorrectioncapacitor.html When it comes to generators--that is, from the generator perspective (at the...

Actually, I would suggest you be proactive and determine what kind of input "connection" your PC system can accept for a time master signal, and then help to choose/specify a master time signal generator with a compatible output type. And, then you can also order the appropriate cable at the...

RussB, Under the "new" organization, does one get Toolbox from the same group that provides CIMPLICITY/PROFICY/PROFICY Machine Edition? Does GE-Salem fall under GE-IP now? By copy to shakaramiali, I don't believe there's any place to download this software from (legally), unless you're a...

amritanshup, I think there are some issues with terms and usage here. Real power is watts, or kw, or MW--the power producing tangible work (watts can converted to HP). It is the side adjacent to the hypotenuse of the power triangle, usually called "P." Reactive power is power that...

barinda75, Your post has contradictions and new information. >Recently we have a Hot gas path inspection of frame-V >machine. With all instrumentation skid cable replacement. >After that this problem is coming, .... Later you write: >This problem is perennial. the turbine...

sanjib_dibrugarh, Try exchanging the two sensors at the Mark VIe input terminal board and starting the turbine, and report back what happens to the readings for the two sensors. And, do you have a spare vibration sensor? If not, why not?

Maythem, Yes, the axial compressor is running at a constant speed when synchronized to a well-regulated grid. But, the IGVs on most GE-design Frame 9E heavy duty gas turbines do change with load--opening to increase air flow. (The compressor bleed valves are only open to prevent...

barindra75, Do you have no comment or feedback? Can you not tell us if the frequency rose slightly after the load "cut" and then returned to normal along with the load on the Droop machine returning to pre-load "cut" level? Was the explanation not clear?

otised, Latin was omitted from the secondary school curriculum two years before I entered. I was happy at the time; not so happy about that now that I realize how useful it can be for so many things. I've seen a lot of different notations used by operators in logbooks, but never this one...

AhmedWaleed, HFO is usually pretty obnoxious fuel, and I believe you've mentioned it might be crude oil at your site. That means there are all manner of contaminants which will be flowing through the liquid fuel system, including rocks, sand, heavy metals, etc. Some of these can make it through...