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>> Can anybody here help me find IS215ACLEH1B. > Can you tell us what it is, and some description of where it's used? I think it is an EX2100 part.

>1. What precautions would be recommended for such extended operation? Really there are no extra precautions required. As long as the machines are being properly maintained at the correct intervals, all you need to do is what you have been doing in the past. >2. Is there any special...

Did you remove the rotor or not?

Is this a new problem? Usual question - have you been doing any maintenance? Sounds like a seal problem, how old is the machine? Can you please give as much more information as possible?

This is what was normally called a piggy-back pump system and was fairly common on old LA and MKI systems. I've had a check and I don't have any written documentation that I can find but your description of the operation is pretty well correct from memory. Yes, the "cooldown" pump runs to 14HS...

I don't think you are quite understanding how Speedtronic works. FSR controls fuel and Exhaust Temperature Control controls FSR. Do you have a manual? I think you should read it.

I wouldn't leave the Speedtronic panel connected if you are going to do a battery test like that. why should you take the risk? Shut the panel down.

Can you expand on "GCV & SRV serviced"? What other alarms did you get? Have you tried again since this failure? I would suggest a re-calibration of the SRV and GCV again and a check on the Start up FSR settings. If you know how, run a VIEW plot next start up as well. Good Luck

Are you sure that the accumulator is properly charged? I've never seen looseness on the clevis locknut cause this kind of problem. Why do you need to touch the locknut, have you been adjusting the IGV angle? Have you tried calibrating the IGVs when the unit is stopped, are they stable then? Have...

It may not within your scope to comment on higher management's decisions but I still think that you should at least make them aware of the serious risks that they are taking. I'm sorry if using the word stupid was offensive to you. But to jumper major protection, especially Flame Detectors, is...

This is probably one of the stupidest posts on the forum for a long time. Most of the big disasters on gas turbines that killed people were caused by Protection being jumpered. I'm not even going to start the analysis of what could happen (I'll leave it for CSA to jump in and do it). Work it out...

Remember Exhaust Temperature Control is still functioning all the time and will prevent any high exhaust temperature from happening.

Thanks CSA. I didn't have the time (or the inclination) to argue finite vs. infinite networks. I have seen these kind of load/frequency excursions on weak networks before,also thanks for pointing out Pre-selected Load problems (again). Let's hope we can get more real data and we can try and help!

Oh well, in that case I won't waste any more time replying.

The fact that everything stabilized when you islanded makes me very suspicious that something was happening on the grid. What was the period of the swing, like 1 second or less or more? If it was very rapid, maybe your frequency meter wasn't catching it. How long did this disturbance last? Have...

Hi Karim (and CSA) Now we are beginning to see some positive data. Are you sure that the Nozzle Angle was not showing negative degrees (-1.9 to -2.1 Deg)? if that is the case then the change in FSR, GCV and nozzle angle look like you are getting a load increase causing an increase in fuel...

To really pinpoint the problem would require a lot more analysis but I really think that you need to eliminate the GCV LVDT problem to start your troubleshooting. One thing that you didn't tell is the FSR reading compared to the GCV position. When the GCV is moving from 68-73%, what is the...

Firstly, the main thing you don't tell us is what is the Exhaust Temp. doing while all this is happening. You also give some strange data, you say that GCV is fluctuating but P2, SRV and FSR are stable?? If the GCV opens, initially P2 should drop and SRV open to recover P2. If GCV is moving but...

Don't think anyone can give you this ogg the top of their head. Don't you have a Control Spec. or a manual for the machine? the information will be there. Someone who has the same machine and has the documents can maybe give you an answer.

I would really need to see your Lube Oil P&ID and your DC Pump MCC wiring diagram. From memory, I think that you should have a 63QL which controls the Emergency Pump, 63QA usually controls the Auxiliary pump. I am guessing that you have a problem with 63QL and also that you have an electrical...