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There are usually separate passages for liquid fuel and gas fuel in "the" fuel nozzles, so the suggestion to clean them (specifically the gas fuel portions of the fuel nozzles) is correct.

>If the diesel engines are all connected to a grid and one >engine had been operated with increase fuel, that engine >will be exporting power to the grid. The other engines more >or less maintain the same power. That's <b><i>impossible</b></i> to say with any degree of certainty without...

minhao_lee, Have you or your operators tried selecting BASE LOAD Load Control mode, and if so, what happens? Using Pre-Selected Load Control to try to "stay" in Base Load (CPR-biased exhaust temperature control) <b>IS NOT</b> the correct way to operate any GE-design heavy duty gas turbine...

sugarboi, Please describe the circumstances when this alarm occurred, AND provide ALL the alarms (Process AND Diagnostic) that were active when this alarm occurred. Also, tell us what the fuel supply conditions were at the time of this alarm (in addition to what fuel was being burned at...

techieraa, You are very welcome. I'm glad it was helpful. I wasn't sure if the "drawing" would be clear. Thank you for the feedback!

Esoteric_Stone, I'm very sorry to hear of your situation with the application code. The salespeople do not understand how the upgrade/retrofit process is performed by GE. (Actually, many of the people in the engineering department performing the upgrade/retrofit don't really <i>understand</i>...

jalestine, >Can you explain me about protective speed and control speed >in GT? For just about any type of turbine it is important to be able to control the speed of the turbine in order to control the power being produced by the turbine. Speed sensors are connected to the turbine control...

Lots of confusion--that's for sure. Please write back to let us know what is found to be the problem(s)!!!

Dmelanco, So, you have a recently calibrated True AC RMS voltmeter and you and your new field service person have verified the linearity of the LVDT feedback over the full stroke, so use the MANUAL FSR function to gag the FSR on load so that you can be reasonably certain the Gas Control...

techieraa, Let's try this:<pre> 1st 1st 2nd 2nd Stage Stage Stage Stage Exhaus Nozzle Blade Nozzle Blade Casing ___ ___ ___ ___ _____ |sss| _|rrr|_ |sss| _|rrr|_ |sssss| _________|sss|- |rrr| -|sss|- |rrr|...

Rokan_123, What has been decided at your site?

An excellent resource for many questions like this is wikipedia.org. They usually have very high-level explanations and often have some very detailed explanations, as well. AND, they often have links to excellent websites with more information. The 'Foundation Fieldbus' entry in Wikipedia.org...

STLTLS, >Sure we will get the data by today and will post once >gathered all the data as you said. How is the data acquisition coming? One of the issues with DLN combustion systems is that there can be (and very often are) load ranges where continuous operation is not a good idea for...

Hamed87, Thank you for the feedback!

Mohammeibr752, Thank you for the kind words, but, as usual there is an error.... >And, the total amount of >reactive power being provided to the system must equal the >reactive power required by the load(s) for the system ><b>voltage</b> to be equal to rated. No matter the number of...

gustavo_marcelo, Re-read your post. It's not clear (at all) what block or blocks or whatever it is you are asking for. Your interest and enthusiasm is admired. But, this is a technical forum, and you need to be specific about what it is you want assistance with. Yes; we can (usually)...

hamed87, When re-booting from <PD>, be sure to remove the power to the control processor, wait approximately 30 seconds, then re-apply power to the control processor. Don't just cycle the power switch very quickly.... That's NOT GOOD for the power supply card or the electronics on the cards...

hamed87, What the I/O States function is telling you is: The RAM on the DCC/SDCC card is most likely NOT getting the information from the EEPROM during boot-up. When it loads the I/O Configuration from the EEPROM it knows ONLY which I/O cards it should see--and it's looking for all of the...

hamed87, There is a procedure in GEH-5980 for using the LCC/SLCC display and keypad for troubleshooting failures to reach I/O State A7. You need to determine which I/O card or -cards are at the lowest I/O State and then resolve that condition, until all the cards get to I/O State A6--and...

I find it utterly incomprehensible--and completely stupid--that operators and their supervisors and plant managers will put up with 4 MW swings while the turbine is operating with Pre-Selected Load Control active. If the setpoint is 65 MW, and the unit is continually bouncing between 63 and 67...