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abdi, > please help me to know what differ installation in dry control mode & wet control > mode in water injection system frame 9e, non-DLN. Some turbines have different CPD-biased exhaust temperature control parameters based on whether or not water injection is enabled (wet) or not...

sriramsandeep, I think what bkarim55 is saying, simply, is that air density decreases as humidity (relative and specific) increase, and that as humidity increases the power output decreases. I'm not so sure his reasoning is correct, though. <b>Denser</b> air requires more energy to...

Bayram_oglu, I'm definitely confused. I was working on a timeline of this thread and who said what and when. I'm either totally confused about what you've written and reported and responded to (and not responded to), or there's a huge disconnect. Basically, I have a very difficult time...

Great question for the OEM/packager of your turbine.

bkarim_55, I'm very happy to hear back from you about this problem; thank you. If the problem is the cracked exhaust diffuser--and it certainly sounds like it is--then I would say there's no problem running until the next MI. Be prepared, though, for the "clever" people to tell you that...

sriramsandeep, Most psychometric charts show both relative and specific humidity; they are related, I suggest you try to explain what your impression is of what effect changes in ambient humidity will have on the parameters you listed? And, then, tell what your questions are, and why you...

Bayram_Oglu, I'm getting more and more confused all the time. And it's compounded by the fact you are not answering questions--for example, you were asked about IOCFG_T.DAT, not IOCFG.DAT. There should be no IOCFG.DAT. There SHOULD BE IOCFG_B.DAT (sometimes it's IOCFG_C.DAT and IOCFG_C.DAT)...

Saleem_khan, Hmmm... It seems you need some kind of PMS (Power Management System) to monitor the load on the system and, for example, stop the DG before the load gets too low, or shut down the solar PV inverter when the load gets too low. It would depend on the operating philosophy for the...

bkarim55,<pre> | | Speedtronic | | Turbine, ^ | Inputs/ | Generator --------|--------| Outputs | and v | | Auxiliaries HMI | |...

Bayrum_oglu, If the IGV position feedback in <T> is not approximately equal to the reference, then the servo current from <T> is going to be trying to make the feedback more equal to the reference. And if <R> and <S> are both okay, then the problem is the LVDT feedback that it "sees." So...

instrumentationautomation, That depends--on whether the turbine is running or not. Typically, when the turbine is at rest (zero speed), and NOT on Cooldown (slowroll or turning gear or whatever method Belfort uses these days), the current draw is approximately 2-3 A @ 125 VDC, or about...

Bayram_oglu, I've read and re-read this post several times, trying to understand the problem(s) and the troubleshooting and the thought process you used in trying to resolve these problems. And, I have to admit, I'm pretty stumped. About the only thing I can say with regards to the problem...

FE, The focus of this World Wide Web forum is controls and control systems. My colleagues (and others) continually ask me why we spend a good deal of time talking about combustion hardware and valves and and vent fans and pumps--well, that's because the control system includes those...

samsan, In order to be able to decrease the power factor to run at higher lagging reactive current it's necessary to increase the current flowing in the generator rotor. That means more rotor winding material and better insulation as well as a design and construction to allow better...

kilkss, Have you read this: http://control.com/thread/1419217517#1419217517 It's very unfortunate that a lot of the alarm text messages and alarm descriptions are very cryptic and not very descriptive or helpful. Most of the alarm descriptions in the Mark VI System Guide were written by...

bkarim55, TTXSPL is biased by changes in TN<b>R</b>--not TN<b>H</b>, and on a two-shaft machine TNR controls LP turbine shaft speed, not HP turbine shaft speed. So, when whatever is controlling the compressor loading is changing the LP Turbine Speed Reference, the Speedtronic then biases...

shahvirb, You are wrong. When two synchronous generators are operated in parallel--that is, when they are <b>SYNCHRONIZED</b>, the speeds of the two must be the same. That's what synchronism means--the speeds of all synchronous generators <b>synchronized</b> together are the "same" (based...

Oh, and in case it wasn't clear: Synchronous generators don't ONLY operate at their rating. The active (real) power, kW, is a function of the torque applied by the prime mover and is controlled by controlling the energy flow-rate into the prime mover with the prime mover's governor. The...

Synchronous generator ratings are "maximum capacity" ratings, that is, they are for the maximum amount of active and reactive current which can be safely generated simultaneously. The rating does NOT mean that the generator will operate at that power factor/kW at all times when synchronized to a...

>Please can you explain why this type of trip will occur. Based on the information provided, the immediate thing which jumps out of this question (without a question mark) is: There were multiple failures, at least one in a critical protection system. For multiple failures like this to...