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glenmorangie, The answer is simple. More and more people think that all they have to do is provide a snippet of information about a perceived problem and an experienced person will just intuitively know precisely what the answer is and can tell them exactly what to do to resolve the issue. They...

Hi, Good questions. Let me start by saying that just about ANY type of inlet cooling has its own problems/issues. AND, if the unit has DLN-I combustors and IBH (Inlet Bleed Heat) that can be problematic when selecting and using inlet cooling systems. Fogging can take several forms ("low...

Xmen, WHEN did this problem start? One presumes it has been working fine for some time and has just begun exhibiting these problems. If this just started after a recent maintenance outage, this would be helpful to know. If this started after ambient conditions have changed (warming; cooling...

alext, I am NOT a CIMPLICITY expert by ANY stretch of the imagination. It is not clear to me if the original poster is trying to update a "regular" install/project of CIMPLICITY or one of the installations/projects used with a GE-design turbine control system HMI. THAT would probably make a big...

Ankur, Generator drives are my strong point. I know a little (VERY little) about axial compressors as used on gas turbines (combustion turbines). When it comes to compressor load sharing (I'm presuming you are referring to centrifugal compressor load sharing) I have no experience with this...

Have you read the manufacturer’s instructions? What are your questions? What equipment do you have for calibration of this type of MW transmitter?

mickyeng, If you're calling a large UPS (Uninterruptible Power Supply, sometimes called an "inverter) a "Service Rectifier" which is ALSO supplying the gas turbines (and turbine control systems) in addition to a 110 VDC battery and charger then the "Service Rectifier" is probably supplying AC...

Most ALL ground detection circuits work similarly, and when the Mark* system is "enabled" (by the ground reference jumper being IN (INstalled)) AND there's a working ground detection circuit/card in the battery charger, then the two ground detection systems are in parallel with each other--and...

I'm fairly confident based on the information provided in the original post the gas turbines are GE-design Frame units--but that's just a SWAG (Scientific Wild-Arsed Guess). Since the packager of the units was not named we can't really know who makes the battery charger(s). BUT, if the turbine...

NABIL007, We aim to please. You aim, too, please. Blessed day.

mahad83, I presume the title of this thread should have been "Power Supply" .... It would seem that the analog input circuits are monitoring some 24 VDC power supply outputs and that the power supplies are not producing sufficient power. You need to follow the wires connected to the input of...

Nabil007, You suffer from the same illness too many suffer from: That EVERY GE-design Frame nxxx heavy duty gas turbine is exactly like every other GE-design heavy duty gas turbine of the same Frame size. AND NOTHING COULD BE FURTHER FROM THE TRUTH. We don't know what Frame size unit you are...

NABIL007, Doesn't the 007 signify that you are an investigator--a sleuth? And if someone made the statement you made above (not even a question--no question mark, no punctuation at all), how does anyone know what is the issue you are having with GCV4 (which was gleaned from your other post...

nnc20, This sounds like someone's (GE Belfort's!!!) swing at reducing the turbine purge time requirement during starting--to help turbines get on-line faster so they can bid into markets where renewables are falling of quickly and make LOTS of money. In the past, there was just a fixed amount...

Faycell, When making modifications or additions to Mark* control systems, the thing to do ALWAYS is to find a similar rung or block or group of blocks and then "copy" what was done. In this case, you're probably looking for a group of blocks, mostly likely including some kind of servo output...

What does the manual say about the alarm shown on the display? But, glenmorangie is 1000% correct. Looks like some kind of protective relay system, and we don't have any idea what kind of problem you're having. My watch is broken. What could be the problem? How would you help me? Wouldn't you...

Faycell, The Integ_In parameter is NOT a Control Constant; rather it is the variable which is being supplied to the integrator portion of the PI Regulator block. The "V" in the ITC rectangle is the value being passed to the integrator function. The "K" value is the integrator time constant...

Tanzim06, First of all you need to absolutely specific about whether you are referring to a Mark VI or a Mark VIe. They are two different control system products that—when new—used different processor “modules”. I cannot understand if you are listing Mark VIe components but are asking about...

Okay; so, the main step-up transformer tap changer is mistakenly in position 0 when it should be in position-3. Could this be the reason for the 200 VAC differential? I’m not going to read any more of the manual than I have, and we don’t know what the “normal” positions or ranges of operation...

Thomas29, The manufacturer’s instructions clearly state the equipment is to be operated by appropriately trained staff. What is the rated voltage of the generator and the grid with which the generator is synchronized? 440 VAC? 6140 VAC? 11kV? 13.8kV? In other words, how much—in percentage of...