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Raf80, Yes; at the end of the Mark V production (in Salem, VA, USA) some controls/HMI configuration was tranferred to Nuovo Pignone (which GE was a large shareholder in). Thanks for the feedback! In my experience, talking to GE Oil & Gas (which is what I think Nuovo Pignone is now called) is...

Raf80, I was referring to GE Mark V HMIs provided by GE through the Salem, VA. USA, division (which an HMI with MS-Windows XP and TCI would have been). It's possible your GE Mark V HMI was provided by a different division of GE or one of its licensees that used a different color dongle.dongle...

"Back in the day" TCI dongles were kind of a medium green color, and there was only one--for TCI. Then, as CIMPLICITY became more "valuable" there began the necessity for having a second dongle for CIMPLICITY (I forget which version of CIMPLICITY that was, but it was probably AFTER Mark V...

What colors are each of the two dongles?

Ah; almost exactly what I thought. I wonder if there's some kind of evaporator/condenser in the plant. I once worked on a triple-effect, tube-nest, low pressure evaporator system, and we found we could increase efficiency and throughput by maintaining a certain range of temperatures that...

Hmmm, The answer to that would require more context. And there are many types of desalination plants (evaporative; reverse osmosis; etc.). Have you tried looking at the plant Operations Manuals? Have you tried using your preferred World Wide Web search engine to search for information on the...

Djafer-QP, I would estimate the best people who frequent Control.com to answer this question would be Demigrog or ME42. Personally, I would attempt it--AFTER making full back-ups of the hard drives on ALL the HMIs being used at the site, and only presuming the current version of ToolboxST has...

arunrajput1990, It has been my impression all along that this problem--the one with the unit being unable to accept a 1.0 or 1.2 MW motor starting--only became a problem after the MI (Major Inspection). Please confirm or correct this impression. Was this happening before the MI, too? Or only...

So, from the graphs I have the following observations. But, first this question: Where is the supplier who installed the upgraded seals and shroud blocks--and, I presume, calculated the new exhaust temperature control constants? This problem started after their work, including the Control...

ControlEng999, I think you follow the threads on Control.com fairly regularly, but I may be wrong. In any case, MANY people write to ask for help or information and many people spend time (some more than others) providing help and information. The cost to the original poster is the same as what...

Mehboob, "As per my knowledge this should be active when any trip signal is generated to trip beaker if breaker is not triped due to any reason this send command to other breaker to isolate. ..." Let's analyze this statement part by part. "...this should be active when any trip signal is...

EAK, How have you determined it's a "mini-fuse"? And, can you identify a component number that is visible in the picture with the RJ-45 connector in it? There are LOTS of graphics programs which have tools for circling or adding arrows to help identify or point out something specific in the...

I'm very confused; so, please help me to understand. I do understand why the <P> core requires three (3) speed pick-up inputs (because of <X>, <Y> & <Z>). But, if the Mark V turbine control panels are SIMPLEX I don't really understand why it's necessary for three speed pick-ups for <R>. In a...

If the generator bearings have proximity probes you can measure it yourself.

Ghulam, "Jacking oil" (or "Lift oil") is used to provide lubrication for very heavy shafts in relatively "small" bearings. By using jacking/lift oil a smaller, more compact machine can be manufactured than if a much larger bearing had to be used because of the weight of the shaft. Jacking/Lift...

ControlsGuy25, I believe the original poster is referring to the little device that, in the second picture (the one with the printed circuit card) is immediately next to the RJ-45 connector and has the copper ends of coils showing. (Poor photos.) That may be some kind of inductor or...

Yeah, well, Nanjing Gas Turbines are "based on" GE-design heavy duty gas turbines, and the designs are very similar, and the concepts of cooldown are very similar for many heavy duty gas turbines or many different manufacturers. I believe GE and Nanjing were engaged--and might still be--in some...

Mehboob, Breaker failure protection can take many forms. In my experience, it's usually a means of monitoring the electrical circuits that can be used to close and--most importantly--open ("trip") a critical circuit breaker. And, often, a loose wire or a bad crimp or a bad connection or a...

amine_nacer, It's entirely likely that some kind of electrical problem (a short?) caused the output to fail. Very early Mark V printed circuit cards were not always very robust and would fail pretty easily. And, when printed circuit cards are old and the components on them are old, they will...

arunrajput1990, I'm still traveling, or, rather, trying to.... This pandemic is going to be the death of me, if not for the virus then for the excessive use of my patience and days of my life I will never get back because of canceled flights and re-bookings and sleeping in airports trying to...