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Curious_One, I'm sure your P.S. was rhetorical, but, do you see units that shut down on "Incomplete Sequence" or "Failure to Synchronize"? Cause I have never seen that happen automatically, yet I hear--anecdotally--it does happen. Just curious.

IBH (Inlet Bleed Heating) is a very poor name for the function it provides. Using IBH allows a GE-design heavy duty gas turbine with DLN-I combustors to transfer into Premix Steady State (the lowest emissions mode) sooner than would otherwise be possible, AND it also allows the unit to remain in...

I know I'm not addressing your concern about how one flame detector can be reading so differently when using the test instrument you have. Again, it's just possible that the flame detector you received is faulty, was damaged during shipping or installation--bad components. Maybe it was even...

You are not looking very hard. Why do you require such a document? What is the purpose for the document? Who are you going to present the document to?

Rialagas, Yes; the output of the Geiger-Muller flame detectors is a frequency, that is zero-based (which makes it on/off in nature). HOWEVER, the frequency IS a measure of flame intensity. The on/off nature has nothing to do with the frequency. With the Mark V, GE Mark* turbine control systems...

KHIEBARY, IF YOU'RE WORKING ON A GE-DESIGN HEAVY DUTY GAS TURBINE WITH DLN COMBUSTORS, YOU SHOULD HAVE EASY ACCESS TO THE OPERATIONS & MAINTENANCE MANUALS AND DOCUMENTATON PROVIDED WITH THE EQUIPMENT. THERE ARE SYSTEM DESCRIPTIONS FOR EACH SYSTEM IN THE MANUAL (SOME ARE BETTER THAN OTHERS) AND...

joseph_e2, I'm NOT saying that "load-sharing" can't be made to work. I AM saying that most of the implementations I have had the (bad) fortune of working on didn't work very well. They were mostly custom-designed systems, many using PLCs, and most programmed and configured by people who just...

TheGingerBeer, I don’t have any such documents in my possession, nor can I recall any documents which specifically dealt with backward compatibility of cards. GE’s position was always to replace like either like (so to replace GD with GD, or to replace GH with GH), or to replace like with...

CH Lee, By the way, when I refer to a unit running in Isoch and another unit running in Droop--I am NOT including any kind of "load sharing" system or scheme. I'm referring to the simplest island system of two units--one in Isoch to control frequency and the other in Droop to provide some of...

Makster, I wanted to also add that 20VG-1 vents through what's usually referred to as a "goose-neck vent." (It vents through some type of atmospheric vent, regardless of what it's called; just follow the tubing and you will find the atmospheric vent. 20VG-1 is a normally-open solenoid-operated...

CH Lee, You've touched on one of the real problems with automatic load sharing. (Actually, I have a problem with the term "load sharing"--it means different things to different people, and it is often misused in these discussions of islanded operation.... But, I digress. Again.) You mentioned...

Makster, During GT operation, SRV position remains relatively constant to ensure constant pressure at GCV upstream so will this slight leaking in SRV affect turbine operation on maximum load? That's 100% not correct. During GT operation, as the GCV opens/closes to change load the intervalve...

From the description in your original post, it would seem that the "fighting" the two DG-sets exhibit is the result of both of them operating in Isochronous Speed Control mode. And, two governors in Isoch Speed Control mode (without some kind of external control method) will exhibit the exact...

Maybe you received a bum (bad) flame detector. Or it got damaged in shipment or during installation. Happens. (Both) Please write back to let us know how you fare in solving this problem. I can't tell from the pic's but if the unit had DLN combustors and there is no cooling water coil I don't...

You’re going to have to ask the supplier of the FMV.

In my personal experience, the leads can be cut to length; there is no special connectors used on leads. How are you “coiling” the extra lead length? Could that be the problem? I have always just cut the extra length off the detectors before connecting them with set-screw wire nuts or crimp...

CH Lee, Do you have the manuals for the 2301's and DSLC's? Most of the Woodward manuals are reasonable good at explaining options (though their explanation of Droop Speed Control leaves a LOT to be desired!!!). Does each generator connect to a common bus through its own transformer? Or do...

Go for it. The worst thing that can happen is it won’t work.

Mr. Lee, Are you referring to the temperature rating for the servo drive in the third attachment—it’s not likely mounted in the turbine compartment but is connected to the electric actuator in the first attachment via the cable the manufacturer’s manual says may be the cause of the fault. In...

Houcinos, The point is: Every GE-design Frame 5 heavy duty gas turbine is not the same as every other GE-design heavy duty gas turbine. And every GE-design two-shaft heavy duty gas turbine does not drive a compressor; a small number drive synchronous generators. The more and better...