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MIKEVI, Thanks very much. I just hope the original poster found the information useful and helpful. And that we'll hear back one way or the other. And by the way--your absence has not gone unnoticed. We could use the benefit of your experience and knowledge. Jump in! The water's fine!

You haven't provided enough information about why water is being injected into the turbine at your site. what fuels are being burned, what the emissions regulations are for your site, the type of combustors (DLN or conventional), etc.?

There's this well-accepted thing called a power triangle, and I believe you've referred to it many times. One side is Watts, real power. The hypotenuse is VA, apparent power. And the other side is VAr, imaginary power. If there is a power triangle, Phil Corso, how can one side not be...

ESKAY, This is a recurring problem for you, and it's not even a GE Mark V Speedtronic problem. <b>What happened to cause these files to disappear from the Start Menu?</b> In other words, solve the cause of the problem and you won't have this problem any more. Have you used the...

MPAC, It's not the fault of the GE TAs; it's the fault of their management for making some very false assumptions about procedures and documentation, and for having an organization that is so fragmented that the wrong division is in charge of training TAs on equipment produced by another...

Namatimangan08, Inlet air cooling is <b>NOT</b> the same as water for NOx emissions reduction.

Actually, I have mis-spoken on one aspect. When the Speedtronic is in Droop Speed Control mode and if the unit is operating at Base Load on exhaust temperature control, the operator can <b>LOWER</b> the load <b>on the generator</b>. The load <b>on the generator</b> cannot be raised by the...

When the new bearings were installed in the GT, was an alignment of the bearing housings performed? (These days, that's usually done with a laser-equipped device.) Was the alignment of the generator to the turbine checked and adjusted after the new GT bearings were installed? Was the...

If one doesn't take a physical measurement of the actual physical stroke (travel) of the valve or device, how will one verify the accuracy of the calibration at 25-, 50-, 75%? It's important, wouldn't you say, to know what the physical travel is, so that one can calculate 25% of it, and 50% of...

Mohammad, I had posted a reply, or so I thought. Sometimes, things get lost in the "bit bucket". Basically, your suggestions are very flawed. It's not clear how Trip Oil Pressure is being measured, because on most GE-design Frame 7EA heavy duty gas turbines there is no Trip Oil Pressure...

<b>What happened prior to <S> becoming <R>?</b> What was being done to cause <S>'s Voter ID to change? Did someone take the DCC (or SDCC) from <R> and put it into <S>? Did someone take a DCC (or SDCC card) from the spare cards inventory and put it into <S> and the Voter ID came up as <R>...

Further to the review of the provided Alarm Log, there is no indication that the turbine tripped. Only that the generator breaker was opened (sometimes referred to as "tripping" the breaker). But the title of this thread as well as the original post and subsequent posts indicates that the...

That is one of the ugliest Alarm Logs I've ever had the displeasure of seeing. If the grid frequency was low enough to trip the breaker (not necessarily the turbine, but the generator breaker was "tripped" or opened) on underspeed (which is usually 14HS dropout, TNK14HS2), then that unit is...

Try this link: http://www.control.com/thread/1296479865#1296505828 and this one: http://control.com/thread/1294809227#1295331639 They should explain how to put the valves at the true zero stroke positions. They are for the Frame 5/6B style of combined GCV/SRV. Speedtronic Mark II...

> I reviewed our Control Spec and it states for the Gas valves to Enter a > Setpoint of %125 and use this as the %100 value for calibration. I know what that means; it's telling you to put in a manual stroke (position) value of 125% when you're measuring the full range of travel (stroke) of...

IMD, Ahh; okay. This is basically a theoretical question. And you are questioning something you were told by someone else. The implication was that you had actually experienced trips under the conditions stated in your original post. And while you may have experienced trips under...

The designers of the system apparently decided to use a DC motor instead of an AC motor. That choice was made probably because some machines are what are termed "black-start" machines, and there is no AC available some times during starting (which is when the 88FM "helper" motor would be...

MPAC, What you have written sounds like it was taken out of context. Without being able to see the Control Specification I would not be able to make any comment on the information you are providing. There are control valves that have been used by GE that have a physical stroke that is...

Not being able to see the P&ID for your system it's impossible to say for sure exactly how your system works. But, based on previous experience with similar systems the explanation below you should be able to use the P&ID and the sequencing or application code in the Speedtronic, as well as the...

SolarForchange, The specific answer depends a lot on the location of the generator and the utility and their requirements and any regulatory agency requirements. Also, depending on the voltage of the generator, you may or may not need a transformer, but I would pretty much say you will...