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Most any gas turbine control system can be made to maintain constant output power--ignoring the parts life of the turbine. The reason power output varies when at Base Load is that when at Base Load the internal firing temperature remains constant and at the optimal value for both power output...

Son, This is not so easy, unfortunately. If you want to print the entire CSP (which usually includes at least one other CSP segment source file, SEQ_LOAD.SRC) you would need to use the CSP Documentor function to do so. And, when you execute the CSP Documentor, all the necessary "support"...

NVS, Thank you for the feedback. "Feedback is the most important contribution!"(c) at control.com.

It varies depending on vintage of machine and type of combustor, as well as with IGV angle and compressor discharge pressure. Unfortunately, GE doesn't publish anything about this, and if the unit is equipped with a Bearing Sealing Air Valve and low pressure switch, there is only the pressure...

Hello, causeur, Are any logic signals forced in the Mark V when these Diagnostic Alarms are occurring? When are these Diagnostic Alarms occurring? While running? When the turbine is shut down (at zero speed, or while on Cooldown (Hydraulic Ratchet; Slowroll; etc.)? If the alarms are...

cww is correct. Induced voltages caused by external influences on low-voltage analog signal wires can cause a LOT of unusual, intermittent, nuisance and extremely frustrating problems. The shield itself captures the stray external influences, and the bare shield drain wire which is in contact...

Hi, This has been covered once or twice before on control.com. THIS APPLIES >>ONLY<< TO LATER MODEL GE MARK V HMIs WHICH HAVE FOUR-DIGIT DIAGNOSTIC ALARM DROP NUMBERS AND >>NO<< INDICATION IN THE ALARM TEXT MESSAGE OF WHICH PROCESSOR THE DIAGNOSTIC ALARM IS ASSOCIATED WITH. You'll need...

When the doors are closed the compartment ventilation fans are doing their job. When the doors are open, the compartment ventilation fans are not doing their job. The normal flow of air into and out of the compartment for cooling and removal of any combustible gases is interrupted. When...

ebrahim, Has the generator been running with the grooves in the current orientation? Have there been any problems with the brushes? Are the grooves oriented the same on both "left" and "right" slip rings?

And "negative" VArs are a recent phenomenon--brought on by digital meters and HMI displays. A lagging VAr (positive, from the generator perspective) is the same as a leading VAr (negative, from the generator perspective) in the power triangle; sign doesn't mean anything. (Even if it did, the...

Charles, Yes; thanks for the clarification. (I understood your last post to read you hadn't had any 125 VDC battery grounds this year.) Anyway, this should be helpful for other when TS (TroubleShooting) similar issues. Continue to stay away from those stray lightning bolts!

VA is the square root of the sum of the squares of the real (Watts) and reactive (VArs) sides of the power triangle. Sorry for any confusion.

Have a look at any explanation of the "power triangle." VA, the hypotenuse of the triangle, is the total power, which is the algebraic sum of the squares of both watts and vars. If the VA is held constant, and VArs are increased (positive or negative) the watts will decrease. The same...

Samul, Have you contacted Solar for help with your project? I think they are pretty helpful, at least in my experience in the past. As for axial compressor "maps", I think that most gas turbine manufacturers keep that information pretty close--as it's generally considered to be...

Charles, Thanks for the feedback! I don't know how I missed your original post; sorry about that. Hopefully indurai will find your feedback helpful. And, it's interesting to learn that your site experiences a lot of lightning strikes.... Hmmm.... Anything else you can tell us...

Awaneesh, I don't have access to Toolbox to tell you exactly where to look, but you should be able to find TNH or TNH1 and then find the configuration values for this assignment (77NH-1, -2 and -3 are almost always assigned to either TNH or TNH1, which are usually expressed in percent of the...

vimal gupta, You are most welcome. <b>Usually,</b> most Speedtronic turbine control systems are configured <b>NOT</b> to trip on a single vibration sensor reading high-high, especially if there are redundant sensors on bearings. And, that is <b>IF the vibration block masks (configuration...

NVS, A regular mouse (serial connector) will work just fine. I have also used a PS2-to-serial converter on a PS2 mouse, and it has worked just fine. If the mouse has a scroll button, it won't work on the <I>.

Hello, Some valve manufacturers have position sensors of various types; have you consulted the valve manufacturer's catalog of products? I've seen this tried for globe valve position several times, with mixed, but usually disappointing results. Flow through a globe valve is not...

Samul, Exactly what are you trying to accomplish? Are you trying to design a gas turbine? Model a gas turbine? Are you trying to develop a program to calculate the efficiency of a gas turbine? Or a program to determine when it's appropriate to perform some maintenance activity (off-line...